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1.
Cogn Sci ; 46(12): e13216, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36515402

RESUMO

We propose a new integrative framework of external time monitoring in prospective memory (PM) tasks and its relation with performance. Starting from existing empirical regularities and our theoretical analysis, the framework predicts that external monitoring in PM tasks comprises a first stage of loose monitoring to keep track of the passage of time, and a subsequent stage of finer-grained monitoring, based on interval reduction, to meet the PM deadline. Following our framework, we predicted and observed in three different datasets (N = 375): (1) a marked increase in external monitoring frequency in the final part of the period of the PM task, well captured by a proportional rate exponential growth function; (2) a positive association between individual compliance with this monitoring pattern and PM performance; (3) a positive relation between monitoring frequency in the time window immediately preceding the PM deadline and PM performance at the individual level; and (4) good individual compliance with an interval reduction pattern in external monitoring, especially in the time window closer to the PM deadline. These results support the proposed integrative framework, which has the potential to foster future research on external monitoring in PM and in other fields of cognitive science.


Assuntos
Memória Episódica , Percepção do Tempo , Humanos , Cognição
2.
J Exp Psychol Learn Mem Cogn ; 47(8): 1226-1245, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33507778

RESUMO

Research on prospective memory has paid no attention to the way in which the intentions to be remembered are framed. In two studies on time-based prospective memory, participants had to remember multiple delayed intentions framed as time rules (i.e., respond every 7 min, every 10 min) or as a series of corresponding instances (i.e., respond at Times 7, 10, 14, 20, 21, 28, 30, etc.). We appraised the effects of intention framing on intention learning, intention representation, strategies used to set the upcoming intention, cognitive load (monitoring cost), and prospective memory performance. Study 1 involved three time rules and corresponding instances. The results showed that time rules are learned faster than corresponding instances and that intention frames shaped the way intentions were mentally represented. Furthermore, the rule frame was associated with a more cognitively demanding incremental planning strategy to establish the upcoming intention, whereas the instance frame promoted the serial recall of intentions. Study 2 replicated the results on representations and strategies with four time rules and corresponding sets of instances, and it showed better prospective memory performance following the instance frame than rule frame. Together, these studies show that two alternative ways of framing multiple delayed intentions in the same prospective memory task induce significant differences in the way intentions are represented, in the cognitive strategies used to set the upcoming intention, and in performance. Theoretical and applied implications of the results for the prospective memory field are discussed. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Intenção , Memória Episódica , Cognição , Humanos , Rememoração Mental
3.
Cogn Res Princ Implic ; 5(1): 36, 2020 08 08.
Artigo em Inglês | MEDLINE | ID: mdl-32770430

RESUMO

Most everyday activities involve delayed intentions referring to different event structures and timelines. Yet, past research has mostly considered prospective memory (PM) as a dual-task phenomenon in which the primary task to fulfill PM intentions is realized within an ongoing secondary task. We hypothesized that these simplified simulations of PM may have obscured the role of spatial relational processing that is functional to represent and meet the increased temporal demands in more complex PM scenarios involving multiple timelines. To test this spatiotemporal hypothesis, participants monitored four digital clocks, with PM deadlines referring either to the same clock (single-context condition) or different clocks (multiple-context condition), along with separate tests of spatial ability (mental rotation task) and executive functioning (working memory updating). We found that performance in the mental rotation task incrementally explained PM performance in the multiple-context, but not in the single-context, condition, even after controlling for individual differences in working memory updating and ongoing task performance. These findings suggest that delayed intentions occurring in multiple ongoing task contexts reflect independent contributions of working memory updating and mental rotation and that spatial relational processing may specifically be involved in higher cognitive functions, such as complex PM in multiple contexts or multitasking.


Assuntos
Função Executiva/fisiologia , Intenção , Memória Episódica , Memória de Curto Prazo/fisiologia , Desempenho Psicomotor/fisiologia , Percepção Espacial/fisiologia , Navegação Espacial/fisiologia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo , Adulto Jovem
4.
Psychol Aging ; 35(4): 553-564, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31971414

RESUMO

Cross-sectional studies have suggested age-related differences in decision-making competence, but these differences may also reflect cohort-related effects. We present a longitudinal study of age-related changes over 5 years in older adults (aged 60-85) for 3 important aspects of decision-making competence: resistance to framing, applying decision rules, and resistance to sunk costs. The findings show small age-related longitudinal declines in resistance to framing but no decline in applying decision rules or resistance to sunk costs. The results also indicate that individuals' decision-making competence after 5 years is significantly related to their initial decision-making competence assessment and that the contribution of crystallized abilities to decision making in older adults is greater than previously thought. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Assuntos
Cognição/fisiologia , Tomada de Decisões/fisiologia , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade
5.
Front Psychol ; 10: 2038, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31572258

RESUMO

Prior research indicates that time perspective (TP; views of past, present, and future) is related to decision-making style. By contrast, no prior study considered relations between TP and decision-making competence. We therefore investigated associations between dimensions of the Swedish Zimbardo Time Perspective Inventory (S-ZTPI) and performance on the Adult Decision-Making Competence (A-DMC) battery in a sample of older adults (60-90 years, N = 346). A structural equation model involving four A-DMC components as indicators of a general DMC factor and the six TP dimensions as the predictors revealed a significant negative association between the Present Fatalistic dimension and DMC. Given that age-related differences were apparent in DMC and that Present Fatalistic orientation increased with age, we tested a model by which the age-related differences in DMC were mediated by age-related differences in Present Fatalistic attitudes and in working memory. The results were consistent with full mediation of the age effects, with Present Fatalistic and working memory jointly accounting for a substantial amount of the variance in DMC (51%). The finding that DMC among older adults, in particular more cognitively demanding aspects such as applying decision rules, can be undermined by increased present fatalistic attitudes and declines in working memory is discussed in terms of theoretical frameworks highlighting the contribution of both motivational and cognitive factors to effective decision making.

6.
J Cogn Neurosci ; 31(10): 1468-1483, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31210563

RESUMO

Proactively coordinating one's actions is an important aspect of multitasking performance due to overlapping task sequences. In this study, we used fMRI to investigate neural mechanisms underlying monitoring of multiple overlapping task sequences. We tested the hypothesis that temporal control demands in multiple-task monitoring are offloaded onto spatial processes by representing patterns of temporal deadlines in spatial terms. Results showed that increased demands on time monitoring (i.e., responding to concurrent deadlines of one to four component tasks) increasingly activated regions in the left inferior parietal lobe and the precuneus. Moreover, independent measures of spatial abilities correlated with multiple-task performance beyond the contribution of working memory. Together, these findings suggest that monitoring and coordination of temporally overlapping task timelines rely on cortical processes involved in spatial information processing. We suggest that the precuneus is involved in tracking of multiple task timelines, whereas the inferior parietal lobe constructs spatial representations of the temporal relations of these overlapping timelines. These findings are consistent with the spatial offloading hypothesis and add new insights into the neurocognitive mechanisms underlying the coordination of multiple tasks.


Assuntos
Mapeamento Encefálico , Função Executiva/fisiologia , Lobo Parietal/fisiologia , Desempenho Psicomotor/fisiologia , Percepção Espacial/fisiologia , Navegação Espacial/fisiologia , Percepção do Tempo/fisiologia , Adulto , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Lobo Parietal/diagnóstico por imagem , Fatores de Tempo , Adulto Jovem
7.
Memory ; 26(5): 697-711, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29130368

RESUMO

Although a number of theoretical accounts of proactive interference (PI) in episodic memory have been proposed, existing empirical evidence does not support conclusively a single view yet. In two experiments we tested the predictions of the temporal discrimination theory of PI against alternative accounts by manipulating the presentation schedule of study materials (lists blocked by category vs. interleaved). In line with the temporal discrimination theory, we observed a clear buildup of (and release from) PI in the blocked condition, in which all the lists of the same category were presented sequentially. In the interleaved condition, with alternating lists of different categories, a more gradual and smoother buildup of PI was observed. When participants were left free to choose their presentation schedule, they spontaneously adopted an interleaved schedule, resulting again in more gradual PI. After longer delays, we observed recency effects at the list level in overall recall and, in the blocked condition, PI-related effects. The overall pattern of findings agrees with the predictions of the temporal discrimination theory of PI, complemented with categorical processing of list items, but not with alternative accounts, shedding light on the dynamics and underpinnings of PI under diverse presentation schedules and over different time scales.


Assuntos
Memória Episódica , Rememoração Mental , Inibição Proativa , Adolescente , Adulto , Feminino , Humanos , Masculino , Adulto Jovem
8.
Front Psychol ; 8: 2062, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29255436

RESUMO

Although the literature on the influence of memory on decisions is well developed, research on the effects of decision making on memory is rather sparse and scattered. Choice-supportive misremembering (i.e., misremembering choice-related information that boosts the chosen option and/or demotes the foregone options) has been observed in several studies and has the potential to affect future choices. Nonetheless, no attempt has been made to review the relevant literature, categorize the different types of choice-supportive misremembering observed, and critically appraise the existing evidence and proposed explanations. Thus, starting from a new theoretically motivated and empirically grounded taxonomy, we review the current research. Our taxonomy classifies choice-supportive misremembering into four conceptually distinct types: misattribution is when information is attributed to the wrong source, fact distortion when the facts are remembered in a distorted manner, false memory when items that were not part of the original decision scenarios are remembered as presented and, finally, selective forgetting is when information is selectively forgotten. After assessing the impact of various potentially moderating factors, we evaluate the evidence for each type of misremembering and conclude that the support for the phenomenon is solid in relation to misattribution when recognition memory is assessed, but significantly weaker for the other three types, and when other memory tests are used to assess memory. Finally, we review the cognitive and emotional explanations proposed for choice-supportive misremembering in the light of the available evidence and identify the main gaps in the current knowledge and the more promising avenues for future research.

9.
Front Psychol ; 8: 1018, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28680411

RESUMO

Repeated testing during learning often improves later memory, which is often referred to as the testing effect. To clarify its boundary conditions, we examined whether the testing effect was selectively affected by covert (retrieved but not articulated) or overt (retrieved and articulated) response format. In Experiments 1 and 2, we compared immediate (5 min) and delayed (1 week) cued recall for paired associates following study-only, covert, and overt conditions, including two types of overt articulation (typing and writing). A clear testing effect was observed in both experiments, but with no selective effects of response format. In Experiments 3 and 4, we compared covert and overt retrieval under blocked and random list orders. The effect sizes were small in both experiments, but there was a significant effect of response format, with overt retrieval showing better final recall performance than covert retrieval. There were no significant effects of blocked vs. random list orders with respect to the testing effect produced. Taken together, these findings suggest that, under specific circumstances, overt retrieval may lead to a greater testing effect than that of covert retrieval, but because of small effect sizes, it appears that the testing effect is mainly the result of retrieval processes and that articulation has fairly little to add to its magnitude in a paired-associates learning paradigm.

10.
Cogn Process ; 18(3): 229-235, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28315969

RESUMO

Many everyday activities require coordination and monitoring of complex relations of future goals and deadlines. Cognitive offloading may provide an efficient strategy for reducing control demands by representing future goals and deadlines as a pattern of spatial relations. We tested the hypothesis that multiple-task monitoring involves time-to-space transformational processes, and that these spatial effects are selective with greater demands on coordinate (metric) than categorical (nonmetric) spatial relation processing. Participants completed a multitasking session in which they monitored four series of deadlines, running on different time scales, while making concurrent coordinate or categorical spatial judgments. We expected and found that multitasking taxes concurrent coordinate, but not categorical, spatial processing. Furthermore, males showed a better multitasking performance than females. These findings provide novel experimental evidence for the hypothesis that efficient multitasking involves metric relational processing.


Assuntos
Cognição/fisiologia , Comportamento Multitarefa/fisiologia , Processamento Espacial/fisiologia , Adulto , Feminino , Humanos , Julgamento , Masculino , Percepção Espacial , Fatores de Tempo , Adulto Jovem
11.
Mem Cognit ; 43(8): 1216-28, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26044943

RESUMO

Many everyday activities require coordination and monitoring of multiple deadlines. One way to handle these temporal demands might be to represent future goals and deadlines as a pattern of spatial relations. We examined the hypothesis that spatial ability, in addition to executive functioning, contributes to individual differences in multitasking. In two studies, participants completed a multitasking session in which they monitored four digital clocks running at different rates. In Study 1, we found that individual differences in spatial ability and executive functions were independent predictors of multiple-task performance. In Study 2, we found that individual differences in specific spatial abilities were selectively related to multiple-task performance, as only coordinate spatial processing, but not categorical, predicted multitasking, even beyond executive functioning and numeracy. In both studies, males outperformed females in spatial ability and multitasking and in Study 2 these sex differences generalized to a simulation of everyday multitasking. Menstrual changes moderated the effects on multitasking, in that sex differences in coordinate spatial processing and multitasking were observed between males and females in the luteal phase of the menstrual cycle, but not between males and females at menses. Overall, these findings suggest that multiple-task performance reflects independent contributions of spatial ability and executive functioning. Furthermore, our results support the distinction of categorical versus coordinate spatial processing, and suggest that these two basic relational processes are selectively affected by female sex hormones and differentially effective in transforming and handling temporal patterns as spatial relations in the context of multitasking.


Assuntos
Função Executiva/fisiologia , Individualidade , Ciclo Menstrual/fisiologia , Caracteres Sexuais , Percepção Espacial/fisiologia , Processamento Espacial/fisiologia , Análise e Desempenho de Tarefas , Adolescente , Adulto , Feminino , Humanos , Masculino , Adulto Jovem
12.
PLoS One ; 9(9): e107619, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25215609

RESUMO

Coordinating multiple tasks with narrow deadlines is particularly challenging for older adults because of age related decline in cognitive control functions. We tested the hypothesis that multiple task performance reflects age- and gender-related differences in executive functioning and spatial ability. Young and older adults completed a multitasking session with four monitoring tasks as well as separate tasks measuring executive functioning and spatial ability. For both age groups, men exceeded women in multitasking, measured as monitoring accuracy. Individual differences in executive functioning and spatial ability were independent predictors of young adults' monitoring accuracy, but only spatial ability was related to sex differences. For older adults, age and executive functioning, but not spatial ability, predicted multitasking performance. These results suggest that executive functions contribute to multiple task performance across the adult life span and that reliance on spatial skills for coordinating deadlines is modulated by age.


Assuntos
Envelhecimento/fisiologia , Cognição/fisiologia , Função Executiva/fisiologia , Adulto , Fatores Etários , Idoso , Envelhecimento/patologia , Envelhecimento/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Caracteres Sexuais
13.
Front Psychol ; 5: 1584, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25657628

RESUMO

According to prescriptive decision theories, the generation of options for choice is a central aspect of decision making. A too narrow representation of the problem may indeed limit the opportunity to evaluate promising options. However, despite the theoretical and applied significance of this topic, the cognitive processes underlying option generation are still unclear. In particular, while a cued recall account of option generation emphasizes the role of memory and executive control, other theoretical proposals stress the importance of ideation processes based on various search and thinking processes. Unfortunately, relevant behavioral evidence on the cognitive processes underlying option generation is scattered and inconclusive. In order to reach a better understanding, we carried out an individual-differences study employing a wide array of cognitive predictors, including measures of episodic memory, semantic memory, cognitive control, and ideation fluency. The criterion tasks consisted of three different poorly-structured decision-making scenarios, and the participants were asked to generate options to solve these problems. The main criterion variable of the study was the number of valid options generated, but also the diversity and the quality of generated options were examined. The results showed that option generation fluency and diversity in the context of ill-structured decision making are supported by ideation ability even after taking into account the effects of individual differences in several other aspects of cognitive functioning. Thus, ideation processes, possibly supported by search and thinking processes, seem to contribute to option generation beyond basic associative memory retrieval. The findings of the study also indicate that generating more options may have multifaceted consequences for choice, increasing the quality of the best option generated but decreasing the mean quality of the options in the generated set.

14.
J Exp Psychol Learn Mem Cogn ; 39(5): 1344-64, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23565790

RESUMO

Several judgment and decision-making tasks are assumed to involve memory functions, but significant knowledge gaps on the memory processes underlying these tasks remain. In a study on 568 adults between 25 and 80 years of age, hypotheses were tested on the specific relationships between individual differences in working memory, episodic memory, and semantic memory, respectively, and 6 main components of decision-making competence. In line with the hypotheses, working memory was positively related with the more cognitively demanding tasks (Resistance to Framing, Applying Decision Rules, and Under/Overconfidence), whereas episodic memory was positively associated with a more experience-based judgment task (Recognizing Social Norms). Furthermore, semantic memory was positively related with 2 more knowledge-based decision-making tasks (Consistency in Risk Perception and Resistance to Sunk Costs). Finally, the age-related decline observed in some of the decision-making tasks was (partially or totally) mediated by the age-related decline in working memory or episodic memory. These findings are discussed in relation to the functional roles fulfilled by different memory processes in judgment and decision-making tasks.


Assuntos
Tomada de Decisões/fisiologia , Memória/fisiologia , Modelos Psicológicos , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Individualidade , Julgamento/fisiologia , Masculino , Memória Episódica , Memória de Curto Prazo/fisiologia , Pessoa de Meia-Idade , Suécia/epidemiologia
15.
Psychol Sci ; 24(4): 514-20, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23462757

RESUMO

Demands involving the scheduling and interleaving of multiple activities have become increasingly prevalent, especially for women in both their paid and unpaid work hours. Despite the ubiquity of everyday requirements to multitask, individual and gender-related differences in multitasking have gained minimal attention in past research. In two experiments, participants completed a multitasking session with four gender-fair monitoring tasks and separate tasks measuring executive functioning (working memory updating) and spatial ability (mental rotation). In both experiments, males outperformed females in monitoring accuracy. Individual differences in executive functioning and spatial ability were independent predictors of monitoring accuracy, but only spatial ability mediated gender differences in multitasking. Menstrual changes accentuated these effects, such that gender differences in multitasking (and spatial ability) were eliminated between males and females who were in the menstrual phase of the menstrual cycle but not between males and females who were in the luteal phase. These findings suggest that multitasking involves spatiotemporal task coordination and that gender differences in multiple-task performance reflect differences in spatial ability.


Assuntos
Atenção/fisiologia , Função Executiva/fisiologia , Fatores Sexuais , Percepção Espacial/fisiologia , Análise e Desempenho de Tarefas , Adulto , Feminino , Humanos , Masculino , Ciclo Menstrual/fisiologia , Caracteres Sexuais , Adulto Jovem
16.
J Atten Disord ; 16(2): 164-73, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20410321

RESUMO

OBJECTIVES: This study examined decision-making competence in ADHD by using multiple decision tasks with varying demands on analytic versus affective processes. METHODS: Adults with ADHD and healthy controls completed two tasks of analytic decision making, as measured by the Adult Decision-Making Competence (A-DMC) battery, and two affective decision tasks (the Balloon Analog Risk Task and the lowa Gambling Task). RESULTS: Although a majority of the ADHD participants were tested under medication, they showed impairments in both types of task. However, logistic regression analysis showed that the applying-decision-rules task of the A-DMC battery was the only significant predictor of ADHD status. CONCLUSIONS: These findings suggested that ADHD is associated with impaired decision making in tasks involving a significant degree of cognitive control. Although both deliberative and affective neurocognitive systems probably contributed to ADHD-related problems in decision making, the findings underlined the involvement of prefrontally mediated executive functions.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Tomada de Decisões , Adolescente , Adulto , Idoso , Função Executiva , Feminino , Jogo de Azar , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
17.
J Genet Psychol ; 172(3): 266-84, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21902005

RESUMO

In this article, the authors examined predictors of self-reported everyday memory failures using the Prospective and Retrospective Questionnaire (PRMQ; Smith, Della Sala, Logie, & Maylor, 2000) in a population-based sample of older adults (age range = 60-90 years; N = 250). The results showed that a higher frequency of reported failures was associated with lower scores on the personality dimension of self-directedness as assessed by the Temperament and Character Inventory (TCI; Cloninger, Dragan, Svrakic, & Przybeck, 1993) and more depressive symptoms on the Center for Epidemiological Studies Depression Scale (CES-D; Radloff, 1977). However, PRMQ scores showed no relationships with objective memory ability, as reflected by a series of retrospective memory measures and a measure of prospective memory. Neither were the PRMQ scales associated with general cognitive functioning as assessed by the Mini-Mental State Examination (MMSE; Folstein, Folstein, & McHugh, 1977). Taken together, the results indicate that within the older population, self-reported memory as assessed by the PRMQ may reflect mood-state and personality factors rather than individual differences in memory and cognitive ability.


Assuntos
Envelhecimento/psicologia , Intenção , Rememoração Mental , Afeto , Atitude Frente a Saúde , Depressão/diagnóstico , Depressão/psicologia , Feminino , Humanos , Individualidade , Controle Interno-Externo , Masculino , Transtornos da Memória/diagnóstico , Transtornos da Memória/psicologia , Entrevista Psiquiátrica Padronizada/estatística & dados numéricos , Testes Neuropsicológicos/estatística & dados numéricos , Inventário de Personalidade/estatística & dados numéricos , Psicometria/estatística & dados numéricos , Valores de Referência , Inquéritos e Questionários
18.
J Exp Child Psychol ; 108(1): 170-9, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20728901

RESUMO

In this longitudinal study, we examined time keeping in relation to working memory (WM) development. School-aged children completed two tasks of WM updating and a time monitoring task in which they indicated the passing of time every 5 min while watching a film. Children completed these tasks first when they were 8 to 12 years old and then 4 years later when they were 12 to 16 years old. Time keeping in early adolescence showed a different pattern of outcome measures than 4 years earlier, with reduced clock checking and increased timing error. However, relative changes in WM development moderated these adverse effects. Adolescents with greater relative gains in WM development were better calibrated than participants with less developing WM functions. We discuss these findings in relation to individual and developmental differences in executive control functions and socioemotionally driven reward seeking.


Assuntos
Desenvolvimento Infantil , Memória de Curto Prazo , Adolescente , Criança , Feminino , Humanos , Estudos Longitudinais , Masculino
19.
Appl Neuropsychol ; 17(4): 289-98, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21154043

RESUMO

This study examined metamemory in relation to three basic executive functions (set shifting, working memory updating, and response inhibition) measured as latent variables. Young adults (Experiment 1) and middle-aged adults (Experiment 2) completed a set of executive functioning tasks and the Prospective and Retrospective Memory Questionnaire (PRMQ). In Experiment 1, source recall and face recognition tasks were included as indicators of objective memory performance. In both experiments, analyses of the executive functioning data yielded a two-factor solution, with the updating and inhibition tasks constituting a common factor and the shifting tasks a separate factor. Self-reported memory problems showed low predictive validity, but subjective and objective memory performance were related to different components of executive functioning. In both experiments, set shifting, but not updating and inhibition, was related to PRMQ, whereas source recall showed the opposite pattern of correlations in Experiment 1. These findings suggest that metamemorial judgments reflect selective effects of executive functioning and that individual differences in mental flexibility contribute to self-beliefs of efficacy.


Assuntos
Atenção/fisiologia , Função Executiva/fisiologia , Inibição Psicológica , Memória/fisiologia , Adulto , Fatores Etários , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Fatores de Tempo , Adulto Jovem
20.
Artigo em Inglês | MEDLINE | ID: mdl-19634025

RESUMO

This study examined time-based prospective memory performance in relation to age, monitoring strategy, response accuracy, and dual-task demands. Young, middle-aged and older adults (N = 115) completed a prospective memory task, in which they indicated the passing of time every 5 min while listening to a short story (low task demands) or completing a series of cognitive tasks (high task demands). Young and older adults showed similar patterns of monitoring behavior, with low rates of clock checking during the early phase of each 5-min interval, followed by linearly accelerating monitoring functions. However, to obtain the same level of prospective memory performance older adults needed more frequent clock checks than young adults. Furthermore, older adults' compensatory monitoring strategy was associated with an additional cost in primary task performance. Finally, increased primary task demands shifted age differences in prospective memory from monitoring frequency to response accuracy. These findings suggest that goal-directed behavior requires efficient task coordination and resource allocation, and that age-related differences in time-based prospective memory should be evaluated by using multiple outcome measures.


Assuntos
Envelhecimento , Função Executiva , Memória , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Objetivos , Humanos , Modelos Lineares , Pessoa de Meia-Idade , Testes Neuropsicológicos , Fatores de Tempo , Adulto Jovem
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