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1.
Psychiatry Res ; 320: 115044, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36638695

RESUMEN

AIMS: To examine whether the onset of the COVID-19 pandemic led to a change in demand for psychiatric treatment, interest in internet-based therapy, and differences in treatment requests by self-reported diagnoses (e.g., Posttraumatic Stress Disorder, Obsessive Compulsive Disorder, Generalized Anxiety Disorder, and Social Anxiety Disorder). METHODS: Using an interrupted time series design, we analyzed intake questionnaires of treatment-seeking patients (N = 1,954) at an anxiety treatment center between June 6, 2019 through September 13, 2021. RESULTS: The change in general treatment-seeking from before to immediately after the global pandemic declaration was not statistically significant. However, there was a steady increase in treatment seeking, with a more pronounced increase from 2020 into 2021. Interest in internet-based therapy increased significantly after the onset of COVID-19. The number of treatment-seeking individuals who self-reported "concerns or diagnoses" of PTSD increased significantly. CONCLUSION: The study supports anecdotal reports from clinics across the country about unprecedented demand for services. It highlights that many patients experienced an immediate impact of the pandemic on their self-reported concerns about trauma and PTSD symptoms, which has important clinical implications. It also highlights a shifting openness to internet-based services during the pandemic.


Asunto(s)
COVID-19 , Pandemias , Humanos , Análisis de Series de Tiempo Interrumpido , Trastornos de Ansiedad/epidemiología , Trastornos de Ansiedad/terapia , Trastornos de Ansiedad/psicología , Ansiedad/terapia
2.
J Anxiety Disord ; 93: 102660, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36527952

RESUMEN

Intolerance of uncertainty (IU) and anxiety sensitivity (AS) have been widely discussed and explored as factors that may contribute to health anxiety. We propose that IU and AS are salient issues for many during the COVID-19 pandemic, and may play a role in the development or exacerbation of health anxiety during the pandemic. Studies have examined links between IU and AS with health anxiety during the pandemic, but these relationships have not been tested together using a longitudinal study design. In the present study, measures of IU, AS, and health anxiety were collected from 301 adults at two time points 6 months apart during (early stages of) the COVID-19 pandemic using an online survey platform. Cross-lagged analysis was utilized to simultaneously estimate cross-sectional and longitudinal associations between these three variables. Robust cross-sectional associations were observed, and IU prospectively predicted changes in both health anxiety and AS. No other statistically significant prospective associations emerged. Present findings support the putative role of IU in health anxiety, suggesting that some observed links between AS and health anxiety could be driven by shared variance with IU. IU may be an important factor to monitor and target in health anxiety interventions during the pandemic.


Asunto(s)
COVID-19 , Pandemias , Adulto , Humanos , Incertidumbre , Estudios Transversales , Estudios Longitudinales , Ansiedad/epidemiología
3.
Contemp Clin Trials ; 119: 106850, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35842108

RESUMEN

BACKGROUND: Several efficacious psychological and pharmacological treatments for posttraumatic stress disorder (PTSD) are available; however, the comparative effectiveness of these treatments represents a major gap in the literature. The proposed study will compare the effectiveness of two leading PTSD treatments - Prolonged Exposure (PE) therapy and pharmacotherapy with paroxetine or venlafaxine extended release - as well as the combination of PE and medication. METHODS: In a randomized clinical trial, veterans with PTSD (N = 450) recruited across six Veterans Affairs Medical Centers will complete assessments at baseline, mid-treatment (Week 7), post-treatment (Week 14), and follow-up (Weeks 27 and 40). The primary outcome will be change in (both clinician-rated and self-reported) PTSD severity. Depression symptoms, quality of life, and functioning will also be measured and examined as secondary outcomes. Baseline demographic and clinical data will be used to develop "personalized advantage indices" (PAIs), with the goal of identifying who is most likely to benefit from which treatment. CONCLUSIONS: This planned trial will yield findings to directly inform clinical practice guidelines for PTSD, by providing comparative effectiveness data to support recommendations about what can be considered the "first-line" treatment option(s) for PTSD. Further, findings from this trial have the potential to guide treatment planning for individual patients, through implementation of PAIs developed from study data, in service of "personalized medicine." TRIAL REGISTRATION: https://clinicaltrials.gov/ct2/show/NCT04961190.


Asunto(s)
Terapia Implosiva , Trastornos por Estrés Postraumático , Veteranos , Humanos , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento
4.
J Consult Clin Psychol ; 90(6): 503-512, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35771512

RESUMEN

OBJECTIVE: Prolonged exposure (PE) therapy is a first-line posttraumatic stress disorder (PTSD) treatment, but the manualized 90-min session format constitutes a barrier to adopting PE in most settings because they use 60-min sessions for scheduling and billing. We examined whether 60-min PE sessions were as effective and efficient as 90-min PE sessions. METHOD: In total, 160 active-duty military personnel with PTSD were randomized to 8-15 sessions of 60- or 90-min PE sessions and assessed pre- and posttreatment, and 3- and 6-month posttreatment, using the Clinician Administered PTSD Scale for Diagnostic and Statistical Manual for Mental Disorders, 5th edition [DSM-5] (CAPS-5). Participants were also assessed weekly during treatment using the PTSD Checklist for DSM-5 (PCL-5). A 60-min PE was hypothesized to be noninferior to 90-min PE based on preliminary studies. RESULTS: Using intent-to-treat analyses, the 95% CI for the difference between 60- and 90-min PE was less than the noninferiority margin (4.69 for the CAPS-5 and 7.38 for the PCL-5) at all three endpoints, suggesting that the efficacy of 60-min PE was noninferior to that of 90-min PE. Similarly, the rate of improvement per session for 60-min PE was noninferior to the rate for 90-min sessions for the PCL-5. Sensitivity analyses and Bayes factors were consistent with these results. CONCLUSIONS: 60-min sessions of PE are noninferior to 90-min sessions with regard to both efficacy and efficiency. Thus, PE can be effectively delivered in shorter sessions, making it easier for behavioral health providers to implement within the military health system and in other mental health systems that use 60-min session appointments. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Asunto(s)
Terapia Implosiva , Personal Militar , Trastornos por Estrés Postraumático , Veteranos , Teorema de Bayes , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Humanos , Terapia Implosiva/métodos , Personal Militar/psicología , Trastornos por Estrés Postraumático/psicología , Resultado del Tratamiento , Veteranos/psicología
5.
J Anxiety Disord ; 88: 102561, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35378369

RESUMEN

Engagement in infection-preventing behaviors (e.g., mask wearing) has become crucial in the context of the COVID-19 pandemic, and health-related anxiety may be an important determinant of individual compliance with recommended guidelines. However, little is known about transactional associations between health anxiety and preventative behaviors, particularly with respect to COVID-19. The present study aimed to longitudinally examine the links between preventative behaviors and both emotion-driven (Germ Aversion) and belief-based (Perceived Infectability) aspects of health anxiety during the COVID-19 pandemic. We hypothesized that greater health anxiety at Time 1 (early in the pandemic) would predict future compliance with preventative behaviors six months later. Two hundred and ninety-six adults (M/SDage= 30.9/10.9 years, 42.2% female) completed two online assessments during the COVID-19 pandemic (Time 1 =June 2020; Time 2 =December 2020). Longitudinal cross-lagged analyses revealed that initial Germ Aversion predicted greater engagement in preventative behaviors at follow-up (ß = 0.16; p = <.001), over and above initial engagement in such behaviors. Similarly, initial engagement in preventative behaviors predicted increases in Germ Aversion at follow-up (ß = .23; p = <.001), over and above initial Germ Aversion. The present findings indicate that affect-driven aspects of health anxiety have a complex transactional relationship with engagement in behaviors aimed at curbing the spread of the COVID-19 pandemic. Clinical and public health implications are discussed.


Asunto(s)
COVID-19 , Adulto , Ansiedad , COVID-19/prevención & control , Femenino , Conductas Relacionadas con la Salud , Humanos , Masculino , Pandemias/prevención & control , SARS-CoV-2
6.
J Pers Disord ; 35(3): 393-408, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-31682196

RESUMEN

Despite increasing recognition that intolerance of uncertainty is a transdiagnostic dimension of psychopathology, very little research has investigated its relevance for externalizing psychopathology and related risky/impulsive behavior. Ninety-five unselected adults (ages 19-55, 53% men) recruited from the community completed a measure of intolerance of uncertainty, externalizing traits and problems, and risky/impulsive behavior. Higher levels of intolerance of uncertainty were associated with greater endorsement of externalizing symptoms (e.g., aggression, alcohol/marijuana use, problematic impulsivity) and last-month risky and impulsive behaviors. Relations between intolerance of uncertainty and externalizing symptoms/risky behaviors were mediated by a motivation to engage in these behaviors to avoid distress, but not by the motivation to experience pleasurable emotions. Findings suggest that difficulty tolerating uncertainty may confer risk for the externalizing spectrum of psychopathology by increasing the likelihood that an individual will engage in risky behaviors to alleviate distressing or unpleasant emotions.


Asunto(s)
Conducta Impulsiva , Trastornos Relacionados con Sustancias , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicopatología , Asunción de Riesgos , Incertidumbre , Adulto Joven
7.
J Anxiety Disord ; 75: 102277, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32768873

RESUMEN

Increasing research has implicated rumination in the development and maintenance of many types of psychopathology, including anxiety-related disorders. A few studies have explored the impact of rumination during cognitive-behavioral therapy (CBT) for anxiety-related disorders (which relies heavily on exposure-based interventions), with mixed results. The present study assessed levels of (trait) rumination before starting treatment for predicting outcomes in 147 adults seeking CBT for anxiety-related disorders in an open treatment clinic. Results revealed that pretreatment levels of rumination significantly predicted (lower) quality of life at the end of treatment, after accounting for baseline variance in quality of life. This finding remained robust when also accounting for demographics, depression, general anxiety, and diagnosis. This result was not observed for self-reflection (a construct related to, but distinguishable from, rumination). Nevertheless, a follow-up (receiver-operator characteristic) analysis showed that pretreatment rumination did not reliably distinguish participants who showed clinically meaningful gains in quality of life during treatment from those who did not. Theoretical and clinical implications of these findings are discussed. We propose that rumination may impede emotional processing during CBT for anxiety, and warrants further attention and treatment. However, more advanced methods (e.g., multivariate modeling) are needed to improve the prognostic utility of rumination.


Asunto(s)
Terapia Cognitivo-Conductual , Calidad de Vida , Adulto , Ansiedad/terapia , Trastornos de Ansiedad/terapia , Depresión/terapia , Emociones , Humanos
8.
Addict Behav ; 108: 106376, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32413581

RESUMEN

OBJECTIVE: Compared to smokers without posttraumatic stress disorders (PTSD), smokers with PTSD smoke more heavily and are less successful in quitting smoking. However, limited research has examined the cognitive pathways underlying this heightened comorbidity. The current study is the first to simultaneously model the cross-sectional and lagged relationships between trauma-related cognitions and cigarette smoking, as well as between trauma-related cognitions and PTSD severity, in smokers with comorbid PTSD receiving treatment. METHOD: Participants (n = 142) were seeking treatment for smoking cessation and PTSD as part of a randomized controlled trial of varenicline and smoking cessation counseling with or without adjunctive Prolonged Exposure (varenicline + PE vs. varenicline only) (Foa et al., 2017). Data were available for both baseline and end-of-treatment assessments of trauma cognitions severity of cigarette smoking and PTSD symptoms. We conducted both cross-sectional and lagged analysis to simultaneously examine the bidirectional relationship from trauma cognitions and 1) cigarette smoking and 2) PTSD symptoms. RESULTS: Trauma cognitions (specifically, negative beliefs about the self and the world) were significantly associated with cigarette/day at the end of treatment for participants who received varenicline only. However, baseline trauma cognitions did not predict post-treatment cigarettes/day. Baseline trauma cognitions (specifically negative beliefs about the self and world) were associated with PTSD severity at both baseline and end of treatment; furthermore, these negative cognitions at baseline positively and prospectively predicted end-of-treatment PTSD severity, but not vice versa. Wald tests revealed that there were no treatment effects on these cross-lagged relationships. Conclusions These findings provide novel empirical support for the importance of addressing trauma-related cognitions in the smoking cessation treatment efforts for patients with comorbid PTSD and cigarette smoking.


Asunto(s)
Cese del Hábito de Fumar , Trastornos por Estrés Postraumático , Cognición , Estudios Transversales , Humanos , Fumadores
9.
Psychol Med ; 48(16): 2776-2785, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-29501072

RESUMEN

BACKGROUND: Neurocognitive deficits are often seen as core features of schizophrenia, and as primary determinants of poor functioning. Yet, our clinical observations suggest that individuals who score within the impaired range on standardized tests can reliably perform better in complex real-world situations, especially when performance is embedded within a positive socio-affective context. METHODS: We analyzed literature on the influence of non-neurocognitive factors on test performance in order to clarify their contributions. RESULTS: We identified seven non-neurocognitive factors that significantly contribute to neurocognitive test performance: avolition, dysfunctional attitudes, effort, stress, negative emotions, asociality, and disorganized symptoms. We then proposed an alternative model based on dysfunctional (e.g. defeatist) attitudes and their consequences for motivation and sustained task engagement. We demonstrated that these factors account for substantial variance in negative symptoms, neurocognitive test performance, and functional outcomes. We then demonstrated that recovery-oriented cognitive therapy - which is derived from this alternative model and primarily targets dysfunctional beliefs - has been successful in the treatment of low functioning individuals with schizophrenia. CONCLUSION: The contributions of neurocognitive impairments to poor real-world functioning in people with schizophrenia may be overstated in the literature, and may even be limited relative to non-neurocognitive factors. We offer suggestions for further research to more precisely quantify the contributions of attitudinal/motivation v. neurocognitive factors in schizophrenia.


Asunto(s)
Actitud , Disfunción Cognitiva/fisiopatología , Emociones/fisiología , Función Ejecutiva/fisiología , Motivación/fisiología , Esquizofrenia/fisiopatología , Conducta Social , Estrés Psicológico/fisiopatología , Disfunción Cognitiva/etiología , Humanos , Esquizofrenia/complicaciones
10.
Psychiatr Serv ; 68(10): 997-1002, 2017 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-28566022

RESUMEN

OBJECTIVE: The study examined six-month follow-up results and the impact of length of illness on treatment outcomes of recovery-oriented cognitive therapy (CT-R). METHODS: Sixty outpatients (mean age 38.4 years, 33% female, 65% African American) with schizophrenia or schizoaffective disorder and elevated negative symptoms were randomly assigned to CT-R or standard treatment. Assessments were conducted at baseline, midtreatment (six and 12 months), end of treatment (18 months), and follow-up (24 months, N=46 after attrition) by assessors blind to treatment condition. Global functioning, measured with the Global Assessment Scale, was the primary outcome. Secondary outcomes were negative symptoms (avolition-apathy score on the Scale for the Assessment of Negative Symptoms) and positive symptoms (total score on the Scale for the Assessment of Positive Symptoms). Length of illness indexed chronicity (less chronic, one to 12 years; more chronic, 13 to 40 years). RESULTS: Intent-to-treat analyses (hierarchal linear modeling) at follow-up indicated significant benefits for individuals assigned to CT-R compared with standard treatment: higher global functioning scores (between-group Cohen's d=.53), lower scores for negative symptoms (d=-.66), and lower scores for positive symptoms (d=-1.36). Length of illness moderated treatment effects on global functioning, such that those with a less chronic illness began to show improvements earlier (at the trend level by six months and reaching significance by the end of treatment), whereas the group with a more chronic illness did not show significant improvements until later (at follow-up). CONCLUSIONS: CT-R produced durable effects that were present even among individuals with the most chronic illness.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Evaluación de Resultado en la Atención de Salud , Trastornos Psicóticos/terapia , Esquizofrenia/fisiopatología , Esquizofrenia/terapia , Adulto , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad
11.
J Affect Disord ; 204: 226-33, 2016 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-27379618

RESUMEN

BACKGROUND: Although there has been extensive research showing that depression is associated with executive function (EF) deficits, the nature of these deficits is not clearly delineated. Specifically, previous reviews on this topic have yielded different conclusions about the particular domains of EF that are disrupted in depressed individuals. Further, research on whether these deficits persist after depressed mood has remitted is less prevalent and not consistent. METHODS: In two independent samples of college students, we examined associations between clinical ratings of current and past symptoms of a Major Depressive Episode (MDE) and difficulties in two domains of EF: inhibition and shifting. In Study 1 (n=162), EF was measured using behavioral tasks shown to index these two domains. In Study 2 (n=95), EF was measured using a self-report questionnaire believed to capture EF difficulties experienced in daily life. RESULTS: In both studies, past MDE symptoms were associated with worse shifting. In contrast, current MDE symptoms were associated with worse inhibition, though only on the behavioral measure (in Study 1). LIMITATIONS: Both studies used college samples and retrospective assessments of past symptoms. Further, only two domains of EF were examined, and the EF measures employed in each study have their own unique methodological limitations. CONCLUSIONS: Findings suggest that inhibition deficits vary as a function of current symptoms and thus may be a by-product of distress rather than a causal contributor. In contrast, shifting deficits associated with depression appear to be more enduring, suggesting that they could contribute to risk for depression.


Asunto(s)
Trastorno Depresivo Mayor/fisiopatología , Función Ejecutiva/fisiología , Inhibición Psicológica , Adulto , Trastorno Depresivo Mayor/psicología , Femenino , Humanos , Masculino , Procesos Mentales/fisiología , Estudios Retrospectivos , Autoinforme , Estudiantes/psicología , Adulto Joven
12.
Clin Psychol Rev ; 40: 170-83, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26135816

RESUMEN

Deficits in executive function (EF) have been proposed as a possible explanation for the "cognitive rigidity" often observed in suicidal individuals. This article provides a systematic review of the existing literature testing the relations between EF and suicidality, across various diagnostic and demographic populations, using the influential multidimensional model of EF proposed by Miyake and colleagues (2000) as an organizing framework. Forty-three journal articles on this topic published before January of 2014 were reviewed. Collectively, results from these studies provide tentative support for an association between EF deficits and suicidality. However, there is some evidence that this association is moderated by other factors (e.g., suicide attempt lethality). Importantly, this relationship may vary across diagnostic groups. Specifically, more studies that used depressive disorder samples reported some positive findings (75%), followed by mixed diagnostic samples (54%). In contrast, fewer positive findings have emerged from studies with bipolar or psychotic disorder samples (29% and 33% respectively), and some even found that suicidality is associated with better EF in individuals with psychotic disorders. Firm conclusions about relationships between specific dimensions of EF and/or aspects of suicidality are difficult to draw this time. Limitations of the existing literature and corresponding directions for future research are discussed.


Asunto(s)
Trastornos del Conocimiento , Función Ejecutiva/fisiología , Suicidio/psicología , Trastornos del Conocimiento/fisiopatología , Trastornos del Conocimiento/psicología , Humanos
13.
Anxiety Stress Coping ; 27(6): 712-21, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24679122

RESUMEN

BACKGROUND AND OBJECTIVES: Excessive worry is associated with a range of psychological disorders. While previous studies have examined genes associated with a range of different anxiety phenotypes, none have explored genes specifically associated with the general tendency to worry. DESIGN: The present study tested associations between trait worry and functional polymorphisms of three candidate genes: the serotonin transporter-linked polymorphic region (5-HTTLPR) of the SLC6A4 gene, the Val66Met region of the brain-derived neurotrophic factor (BDNF) gene, and the Val158Met region of the catechol-O-methyltransferase (COMT) gene. METHODS: A heterogeneous sample of adult participants (n=173) completed the Penn State Worry Questionnaire (PSWQ) and provided DNA samples for genotyping. RESULTS: Results revealed a significant interaction between 5-HTTLPR and BDNF genotypes predicting levels of worry. Specifically, there was a significant positive association between 5-HTTLPR short alleles and PSWQ scores, but only in BDNF met allele carriers. COMT genotype was not significantly associated levels of worry, nor did COMT interact with 5-HTTLPR or BDNF genotypes to predict PSWQ scores. CONCLUSIONS: These findings provide preliminary evidence about the putative genetic etiology of worrying. Key limitations of the present study and corresponding directions for future research on this topic are discussed.


Asunto(s)
Ansiedad/genética , Factor Neurotrófico Derivado del Encéfalo/genética , Catecol O-Metiltransferasa/genética , Polimorfismo Genético/genética , Proteínas de Transporte de Serotonina en la Membrana Plasmática/genética , Adolescente , Adulto , Anciano , Alelos , Ansiedad/psicología , Femenino , Predisposición Genética a la Enfermedad/genética , Predisposición Genética a la Enfermedad/psicología , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Encuestas y Cuestionarios , Adulto Joven
14.
Brain Behav ; 3(5): 532-51, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24392275

RESUMEN

Background Habituation of the fear response, critical for the treatment of anxiety, is inconsistently observed during exposure to threatening stimuli. One potential explanation for this inconsistency is differential attentional engagement with negatively valenced stimuli as a function of anxiety type. Methods The present study tested this hypothesis by examining patterns of neural habituation associated with anxious arousal, characterized by panic symptoms and immediate engagement with negatively valenced stimuli, versus anxious apprehension, characterized by engagement in worry to distract from negatively valenced stimuli. Results As predicted, the two anxiety types evidenced distinct patterns of attentional engagement. Anxious arousal was associated with immediate activation in attention-related brain regions that habituated over time, whereas anxious apprehension was associated with delayed activation in attention-related brain regions that occurred only after habituation in a worry-related brain region. Conclusions Results further elucidate mechanisms involved in attention to negatively valenced stimuli and indicate that anxiety is a heterogeneous construct with regard to attention to such stimuli.

15.
Front Psychol ; 3: 298, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22934089

RESUMEN

The present research examined the hypothesis that cognitive processes are modulated differentially by trait and state negative affect (NA). Brain activation associated with trait and state NA was measured by fMRI during an attentional control task, the emotion-word Stroop. Performance on the task was disrupted only by state NA. Trait NA was associated with reduced activity in several regions, including a prefrontal area that has been shown to be involved in top-down, goal-directed attentional control. In contrast, state NA was associated with increased activity in several regions, including a prefrontal region that has been shown to be involved in stimulus-driven aspects of attentional control. Results suggest that NA has a significant impact on cognition, and that state and trait NA disrupt attentional control in distinct ways.

16.
J Anxiety Disord ; 26(3): 425-9, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22310102

RESUMEN

Individuals who are prone to worry tend to overestimate the likelihoods and costs of future undesirable outcomes. However, it is unclear whether these relations vary as a function of the timeframe of the event in question. In the present study, 342 undergraduate students completed a self-report measure of worry and rated the perceived probabilities and costs of 40 undesirable outcomes. Specifically, each participant estimated the probability that each of these outcomes would occur within three different timeframes: the next month, the next year, and the next 10 years. We found that the strength of the association between worry and probability estimates was strongest for the most proximal timeframe. Probability estimates were more strongly associated with worry for participants with elevated cost estimates, and this interactive effect was strongest for the most distal timeframe. Implications of these findings for understanding the etiology and treatment of excessive worry are discussed.


Asunto(s)
Ansiedad/psicología , Estrés Psicológico/psicología , Estudiantes/psicología , Adolescente , Adulto , Femenino , Humanos , Masculino , Probabilidad , Autoinforme , Encuestas y Cuestionarios
17.
Psychon Bull Rev ; 19(2): 239-44, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22222359

RESUMEN

Individual differences in working memory predict many aspects of cognitive performance, especially for tasks that demand focused attention. One negative consequence of focused attention is inattentional blindness, the failure to notice unexpected objects when attention is engaged elsewhere. Yet, the relationship between individual differences in working memory and inattentional blindness is unclear; some studies have found that higher working memory capacity is associated with greater noticing, but others have found no direct association. Given the theoretical and practical significance of such individual differences, more definitive tests are needed. In two studies with large samples, we tested the relationship between multiple working memory measures and inattentional blindness. Individual differences in working memory predicted the ability to perform an attention-demanding tracking task, but did not predict the likelihood of noticing an unexpected object present during the task. We discuss the reasons why we might not expect such individual differences in noticing and why other studies may have found them.


Asunto(s)
Atención , Memoria a Corto Plazo , Adolescente , Adulto , Femenino , Humanos , Individualidad , Masculino , Reconocimiento Visual de Modelos , Estimulación Luminosa , Adulto Joven
18.
Acta Psychol (Amst) ; 139(1): 137-45, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22154348

RESUMEN

Multi-tasking can increase susceptibility to distraction, affecting whether irrelevant objects capture attention. Similarly, people with depression often struggle to concentrate when performing cognitively demanding tasks. This parallel suggests that depression is like multi-tasking. To test this idea, we examined relations between self-reported levels of anhedonic depression (a dimension that reflects the unique aspects of depression not shared with anxiety or other forms of distress) and attention capture by salient items in a visual search task. Furthermore, we compared these relations to the effects of performing a concurrent auditory task on attention capture. Strikingly, both multi-tasking and elevated levels of anhedonic depression were associated with increased capture by uniquely colored items, but decreased capture by abruptly appearing items. At least with respect to attention capture and distraction, depression seems to be functionally comparable to juggling a second, unrelated cognitive task.


Asunto(s)
Atención/fisiología , Depresión/psicología , Trastorno Depresivo/psicología , Percepción Visual/fisiología , Adolescente , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Estimulación Luminosa , Tiempo de Reacción/fisiología , Adulto Joven
19.
Cogn Emot ; 25(4): 747-55, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21547776

RESUMEN

Attentional control theory (Eysenck et al., 2007) posits that taxing attentional resources impairs performance efficiency in anxious individuals. This theory, however, does not explicitly address if or how the relation between anxiety and attentional control depends upon the perceptual demands of the task at hand. Consequently, the present study examined the relation between trait anxiety and task performance using a perceptual load task (Maylor & Lavie, 1998). Sixty-eight male college students completed a visual search task that indexed processing of irrelevant distractors systematically across four levels of perceptual load. Results indicated that anxiety was related to difficulty suppressing the behavioural effects of irrelevant distractors (i.e., decreased reaction time efficiency) under high, but not low, perceptual loads. In contrast, anxiety was not associated with error rates on the task. These findings are consistent with the prediction that anxiety is associated with impairments in performance efficiency under conditions that tax attentional resources.


Asunto(s)
Ansiedad/psicología , Atención , Individualidad , Percepción Visual , Adolescente , Adulto , Humanos , Masculino , Pruebas Neuropsicológicas , Tiempo de Reacción , Adulto Joven
20.
Cogn Emot ; 25(8): 1510-9, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21432627

RESUMEN

Anxiety and depression are often associated with attention control deficits, but few studies have explored whether neuroticism can account for these links. In the present study, undergraduate students (n=146) completed self-report measures of neuroticism, worry, anxious arousal, and anhedonic depression and also completed a visual attention task in which they were asked to identify a red target letter embedded within a rapid sequence of items. Neuroticism was associated with detection of the target when it was preceded by a distracter with which it shared a feature in common (a green letter). Specifically, these distracters produced longer attentional blinks in individuals with elevated levels of neuroticism. In contrast, target detection was not significantly associated with worry, anxious arousal, or anhedonic depression. We discuss the implications of this link between neuroticism and attention for cognitive models of emotional distress and disorders.


Asunto(s)
Ansiedad , Atención , Trastornos Neuróticos/psicología , Estimulación Luminosa/métodos , Adolescente , Adulto , Nivel de Alerta , Parpadeo Atencional , Depresión , Femenino , Humanos , Masculino , Inventario de Personalidad , Desempeño Psicomotor , Autoinforme
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