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Though school children tend to view peer victimization as morally wrong most do not to intervene on the victim's behalf and some instead choose to aid the victimizer. The aim of this longitudinal study was to investigate how students' defending and pro-aggressive bystander behaviors evolved over the course of one school year and their association to basic moral sensitivity, moral disengagement, and defender self-efficacy. Three-hundred-fifty-three upper elementary school students (55% girls; 9.9-12.9 years of age) each completed self-report surveys at three points during one school year. Results from latent growth curve models showed that pro-aggressive bystander behavior remained stable over the year, whereas defending behavior decreased. Moreover, students who exhibited greater basic moral sensitivity were both less likely to be pro-aggressive and simultaneously more likely to defend. Students with defender self-efficacy were not only associated with more defending behavior at baseline but also were also less likely to decrease in defender behavior over time. Conversely, students reporting a higher degree of moral disengagement were linked to more pro-aggressive behavior, particularly when also reporting lower basic moral sensitivity. These short-term longitudinal results add important insight into the change in bystander behavior over time and how it relates to students' sense of morality. The results also highlight the practical necessity for schools to nurture students' sense of morality and prosocial behavior in their efforts to curb peer victimization.
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Despite the important role of peers in the social process of classroom citizenship, the peer influence related to moral disengagement, social goals, and a sense of peer community remain unclear. To this end, it was examined to what extent youth become similar to their friends in moral disengagement, social goals, and a sense of peer community. Participants were 283 South Korean third to sixth graders (Mage = 9.60 years, SD = 0.97; 51.6% girls) who completed an online survey for moral disengagement, social goals, the sense of peer community and friendship network across the beginning (Time 1) and end (Time 2) of the school semester (September to December). Longitudinal social network analyses indicated that youth became more similar to their friends concerning moral disengagement and a sense of peer community, but did not select friends based on these aspects. The strength of these influence effects varied in terms of different levels of these aspects. Specifically, youth were more likely to become similar to their friends at lower levels of moral disengagement. Youth tended to be similar to the friends' level of sense of peer community. This tendency was relatively strong at the lowest and the highest levels of a sense of peer community. Future research should address the role of friendship in shaping classroom citizenship and the importance of classroom daily teaching practice in youth citizenship development.
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Ciudadanía , Influencia de los Compañeros , Adolescente , Femenino , Humanos , Niño , Masculino , Objetivos , Grupo Paritario , Principios Morales , AmigosRESUMEN
BACKGROUND AND OBJECTIVES: Although disgust proneness has been implicated in the development of obsessive-compulsive disorder (OCD), available studies have largely employed cross-sectional designs and the prospective and potentially reciprocal association between disgust proneness and OCD symptoms remains unclear. The present study employs cross lagged panel analysis to examine the prospective and reciprocal association between disgust proneness and OCD symptoms. METHOD: A community sample of adults (N = 307) completed symptom measures of disgust proneness and OCD symptoms at four time points with 1 month intervals. RESULTS: The results showed that the cross-lagged paths from disgust proneness to OCD symptoms were significant (average ß = 0.07, p's < 0.001) when controlling for depression. However, the paths from total OCD symptoms to disgust proneness were not significant. In contrast, the cross-lagged paths from disgust proneness to washing OCD symptoms were not significant. However, the paths from washing OCD symptoms to disgust proneness were significant (average ß = 0.05, p's < 0.01) when controlling for depression. LIMITATIONS: The study is limited is limited by exclusive reliance on self-report in a nonclinical sample. CONCLUSIONS: The findings offer preliminary evidence suggesting that disgust proneness may be a cause and consequence of OCD depending on the nature of the symptoms. Thus, the longitudinal relation between disgust proneness and OCD may be transactional where one influences the effect of the other.
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Asco , Trastorno Obsesivo Compulsivo , Adulto , Humanos , Emociones , Estudios Transversales , Estudios Prospectivos , Estudios Longitudinales , Trastorno Obsesivo Compulsivo/diagnósticoRESUMEN
This study aimed to answer the questions 'What are the neural networks and mechanisms involved in visual and kinesthetic motor imagery?', and 'Is part of cognitive processing included during visual and kinesthetic motor imagery?' by investigating the neurophysiological networks and activations during visual and kinesthetic motor imagery using motor imagery tasks (golf putting). The experiment was conducted with 19 healthy adults. Functional magnetic resonance imaging (fMRI) was used to examine neural activations and networks during visual and kinesthetic motor imagery using golf putting tasks. The findings of the analysis on cerebral activation patterns based on the two distinct types of motor imagery indicate that the posterior lobe, occipital lobe, and limbic lobe exhibited activation, and the right hemisphere was activated during the process of visual motor imagery. The activation of the temporal lobe and the parietal lobe were observed during the process of kinesthetic motor imagery. This study revealed that visual motor imagery elicited stronger activation in the right frontal lobe, whereas kinesthetic motor imagery resulted in greater activation in the left frontal lobe. It seems that kinesthetic motor imagery activates the primary somatosensory cortex (BA 2), the secondary somatosensory cortex (BA 5 and 7), and the temporal lobe areas and induces human sensibility. The present investigation evinced that the neural network and the regions of the brain that are activated exhibit variability contingent on the category of motor imagery.
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This study investigated the neurophysiological differences underpinning motor and cognitive skills by measuring the brain activity via functional magnetic resonance imaging. Twenty-five healthy adults (11 women, 25.8 ± 3.5 years of age) participated in the study. We developed three types of tasks, namely, simple motor task (SMT), complex motor task (CMT), and cognitive task (CT), using two-dimensional images of Gomoku, a traditional game known as five in a row. When shown the stimulus, participants were instructed to identify the best spot to win the game and to perform motor imagery of placing the stone for the SMT and CMT but not for the CT. Accordingly, we found significant activation from the CMT minus SMT contrast in the dorsolateral prefrontal cortex, posterior parietal cortex, precentral gyrus, and superior frontal cortex, which reflected increased visuospatial attention, working memory, and motor planning. From the CT minus SMT contrast, we observed significant activation in the left caudate nucleus, right medial prefrontal cortex, and right primary somatosensory cortex, responsible for visuospatial working memory, error detection, and cognitive imagery, respectively. The present findings indicate that adopting a conventional classification of cognitive and motor tasks focused on the extent of decision making and motor control involved in task performance might not be ideal.
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Regardless of age, math anxiety (i.e., adverse affective reactions in situations involving math) is associated with lower math achievement. Previous studies have investigated the role of adult figures (e.g., parents, teachers) in the development of children's math anxiety. However, given the importance of peer relationships during adolescence, we examined friendship selection and social influence on children's math anxiety using longitudinal peer network analyses. Throughout the academic semester, we found that children became more similar to their peers in math anxiety levels but did not form new peer networks based on their levels of math anxiety. These findings highlight the importance of peers' emotional reactions to math, which could influence future academic achievement and career aspirations considerably.
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Éxito Académico , Ansiedad , Niño , Adulto , Adolescente , Humanos , Ansiedad/psicología , Grupo Paritario , Logro , Red SocialRESUMEN
We aimed to answer the question "why do people run the track counterclockwise (CCW)?" by investigating the neurophysiological differences in clockwise (CW) versus CCW direction using motor imagery. Three experiments were conducted with healthy adults. Electroencephalography (EEG) was used to examine hemispheric asymmetries in the prefrontal, frontal, and central regions during CW and CCW running imagery (n = 40). We also evaluated event-related potential (ERP) N200 and P300 amplitudes and latencies (n = 66) and conducted another experiment using functional magnetic resonance imaging (fMRI) (n = 30). EEG data indicated greater left frontal cortical activation during CCW imagery, whereas right frontal activation was more dominant during CW imagery. The prefrontal and central asymmetries demonstrated greater left prefrontal activation during both CW and CCW imagery, with CCW rotation exhibiting higher, though statistically insignificant, asymmetry scores than CW rotation. As a result of the fMRI experiment, greater activation was found during CW than during CCW running imagery in the brain regions of the left insula, Brodmann area 18, right caudate nucleus, left dorsolateral prefrontal cortex, left superior parietal cortex, and supplementary motor area. In the ERP experiment, no significant differences were found depending on direction. These findings suggest that CCW rotation might be associated with the motivational approach system, behavioral activation, or positive affect. However, CW rotation reflects withdrawal motivation, behavioral inhibition, or negative affect. Furthermore, CW rotation is understood to be associated with neural inefficiency, increased task difficulty, or unfamiliarity.
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Objectives: This study investigated the acute effects of yoga and aerobic exercise on response inhibition and the underlying neural mechanisms in individuals with nicotine dependence, along with changes in craving and affect. Materials and methods: Study participants included 30 yoga-naïve adult smokers with moderate-to-high nicotine dependence. Based on a within-subjects design, all participants participated in three experimental sessions: baseline, 30-min yoga, and 30-min aerobic exercise; one session was conducted per day. The pre- and post-exercise Questionnaire of Smoking Urges and the Visual Analogue Scale were used to measure cigarette craving, and the Positive and Negative Affect Schedule was used to assess affective change. For cognitive measurement of inhibition, participants performed a Go/Nogo task consisting of Smoking-Go, Smoking-Nogo, Neutral-Go, and Neutral-Nogo stimulus conditions. Neuroelectric data were collected and the event-related potential (ERP) N2 and P3 amplitudes and latencies were analyzed. Results: Both yoga and aerobic exercise significantly reduced negative affect, whereas a reduction in craving was only observed after yoga. ERP results indicated that the P3 amplitudes after yoga were lower than those after aerobic exercise, suggesting increased neural efficiency after yoga, with reduced neural activity while maintaining the same level of cognitive performance as aerobic exercise. Conclusion: As yoga and aerobic exercise were equally effective in attenuating negative affect, smokers may expect greater benefits from yoga in craving reduction and inhibitory control with less physical and cognitive effort. We also believe that video-based yoga practice may provide additional benefits to these effects, reaching a large number of smokers in a non-face-to-face manner.
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OBJECTIVES: Adolescents' exposure to violence between parents acts as a precursor to risky behaviors; however, empirical studies that examined the potential pathways from exposure to violence between parents to risky behaviors are rare. Consequently, the prevention and intervention strategies for risky sexual activities are limited without the identification of malleable mediators. METHODS: Mediators on the association between adolescent exposure to parental fighting and risky sexual activities are examined, which include internalizing behaviors, running away from home, and affiliation with risky peers. Relationships between these variables are examined for males and females separately. The sample consists of 673 adolescents in a neighborhood located in Chicago's Southside who completed a survey. RESULTS: Exposure to parental fighting was not directly associated with risky sexual activities for either males or females. However, among females, exposure to parental fighting was significantly and positively related to internalizing behaviors and running away from home, and internalizing behaviors were also positively associated with running away from home. For males, however, only the association between internalizing behaviors and running away from home was found to be significant. Further, the relationship between exposure to parental fighting and risky sexual activities was mediated by running away from home. CONCLUSIONS: Targeted strategies for prevention are critical for improving sexual health outcomes among adolescents in low-resourced urban neighborhoods.
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Conducta del Adolescente , Caracteres Sexuales , Adolescente , Femenino , Humanos , Masculino , Padres , Asunción de Riesgos , Conducta SexualRESUMEN
Posttraumatic stress, low academic performance, and future orientation as pathways from community violence exposure to sexual risk-taking behavior were examined among 753 African American youth in a large urban school district, ranging from ages of 13 to 24 years. Youth completed a self-report instrument. Youth completed a self-report instrument of Exposure to Violence Probe, University of California at Los Angeles' PTSD Reaction Index Adolescent Version, and Coopersmith's Self-Esteem Scale. Structural equation modeling was performed to examine relationships among the major study variables. Results indicated that community violence exposure was not directly associated with sexual risk behavior. However, community violence exposure had a significantly positive impact on posttraumatic stress, which was associated with low future orientation and sexual risk behavior. Findings suggest that targeted interventions need to consider variables that mediate the association between violence exposure and sexual risk behavior, which can reduce poor sexual health outcomes among urban youth who are exposed to violence in their community.
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Rendimiento Académico , Negro o Afroamericano/etnología , Exposición a la Violencia/etnología , Características de la Residencia , Asunción de Riesgos , Conducta Sexual/etnología , Trastornos por Estrés Postraumático/etnología , Población Urbana , Adolescente , Adulto , Chicago , Femenino , Humanos , Masculino , Adulto JovenRESUMEN
Although considerable evidence has linked disgust proneness (DP) to obsessive-compulsive disorder (OCD), few studies have examined the extent to which DP predicts OCD symptoms over time. Further, it remains unclear if DP is a risk factor for the contamination subtype of OCD specifically or if it is prospectively associated with other OCD symptom subtypes. The present study sought to address these gaps in the literature with a large sample of unselected community participants (nâ¯=â¯497) that completed measures of DP and OCD symptoms monthly over a 6-month period. Latent growth analysis revealed that initial levels of DP were associated with higher initial level of total OCD symptoms when controlling for depression, but not the slope of change in total OCD symptoms over time. Initial levels of total OCD symptoms were also associated with higher initial levels of DP when controlling depression, but not the slope of change in DP over time. Examination of symptom specificity revealed that initial levels of DP were associated with initial levels of washing, neutralizing, obsessing, ordering, and hoarding symptoms. However, initial levels of DP were associated only with the slope of change in the washing subtype when controlling for depression such that high initial levels of DP were associated with steeper increases in washing symptoms of OCD over the 6-month period. These findings suggest that although DP may have concurrent associations with symptoms of OCD more broadly, prospective associations are specific to the contamination/washing subtype of OCD. The implications of these findings for the etiology and treatment of contamination-based OCD are discussed.
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Conducta Compulsiva , Asco , Higiene , Conducta Obsesiva/psicología , Trastorno Obsesivo Compulsivo/psicología , Adolescente , Adulto , Anciano , Depresión/complicaciones , Depresión/psicología , Femenino , Trastorno de Acumulación/complicaciones , Trastorno de Acumulación/psicología , Humanos , Masculino , Persona de Mediana Edad , Conducta Obsesiva/complicaciones , Trastorno Obsesivo Compulsivo/complicaciones , Estudios Prospectivos , Factores de Riesgo , Adulto JovenRESUMEN
The present study investigated the neural mechanisms of self-controlled (SC) feedback underlying its learning advantages. Forty-two participants, including 24 females (16.43⯱â¯2.61â¯years) and 18 males (17.56⯱â¯0.86â¯years), were randomly assigned to a SC or yoked (YK) group. The 6-key-pressing task with a goal movement time was adopted as the experimental task. The behavioral results showed that the SC group demonstrated superior performance in transfer; however, the differences in retention did not reach statistical significance. Event-related potential analyses revealed that the SC group exhibited larger post-stimulus and post-feedback P3 amplitudes than the YK group in the frontal regions; these amplitudes were larger in the YK group in the parietal regions. The post-response error positivity amplitude was found to be larger in the YK group than in the SC group. These results suggest that SC feedback may allow the learner to more actively process the task stimuli and feedback information, and contributes to enhancing the learner's motivation and attachment to the task being practiced. The present study provides a neurophysiological explanation for why SC feedback is effective in learning a new motor skill.
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The primary aim of this study was to examine the direct and indirect links of rejecting/neglecting parenting, sibling victimization, and friendship quality with peer victimization using a convenience sample of 584 Korean children in Grades 3 to 6. In addition, we tested whether these associations differed between male and female students. Structural equation modeling was performed to analyze the data. The results revealed rejecting/neglecting parenting indirectly influenced peer victimization through sibling victimization for both males and females, although such effects were stronger for females than males. Sibling victimization had a direct effect on peer victimization across both sexes, although it indirectly influenced peer victimization through poor friendship quality only for males. Therefore, bullying prevention and intervention programs must involve parents to make them aware of the important role they play in this process and to improve their parenting styles and involvement in sibling conflicts. Furthermore, while the role of friendship quality needs to be highlighted to prevent peer victimization among males, future research continues to explore other peer variables that are related to decreased peer victimization for females.
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Acoso Escolar/psicología , Víctimas de Crimen/psicología , Relaciones Padres-Hijo , Responsabilidad Parental/psicología , Hermanos/psicología , Adolescente , Agresión/psicología , Niño , Femenino , Amigos , Humanos , Masculino , Padres , Grupo Paritario , República de CoreaRESUMEN
[Purpose] The purpose of this study was to determine the effect on local fat deposition and body weight of wearing a near-infrared light belt around the abdomen. [Subjects and Methods] Twenty-eight obese female subjects participated in this experiment. For measurement of body composition, an impedance-style body fat analyzer was used. The experimental group performed treadmill walking 3 times per week for 12 weeks while wearing an activated near-infrared belt around the abdomen. The near-infrared belt was composed of light-emitting diodes having wavelengths of 630â nm, 830â nm, 880â nm, and 956â nm. [Results] The analysis of abdominal circumference indicated that the abdominal circumference of the experimental group was reduced in post-test measurements compared to pre-test. [Conclusion] This investigation showed significant reductions in abdominal circumference, abdominal fat percentage, fat mass, and body-mass index for the experimental compared to the control group, suggesting that changes in body composition can be enhanced when near-infrared radiation is applied to the abdomen during walking.
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BACKGROUND: Although studies have linked disgust proneness to the etiology and maintenance of obsessive-compulsive disorder (OCD) in adults, there remains a paucity of research examining the specificity of this association among youth. METHOD: The present study employed structural equation modeling to examine the association between disgust proneness, negative affect, and OCD symptom severity in a clinical sample of youth admitted to a residential treatment facility (N =471). RESULTS: Results indicate that disgust proneness and negative affect latent factors independently predicted an OCD symptom severity latent factor. However, when both variables were modeled as predictors simultaneously, latent disgust proneness remained significantly associated with OCD symptom severity, whereas the association between latent negative affect and OCD symptom severity became nonsignificant. Tests of mediation converged in support of disgust proneness as a significant intervening variable between negative affect and OCD symptom severity. Subsequent analysis showed that the path from disgust proneness to OCD symptom severity in the structural model was significantly stronger among those without a primary diagnosis of OCD compared to those with a primary diagnosis of OCD. LIMITATIONS: Given the cross-sectional design, the causal inferences that can be made are limited. The present study is also limited by the exclusive reliance on self-report measures. CONCLUSIONS: Disgust proneness may play a uniquely important role in OCD among youth.
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Afecto , Emociones , Trastorno Obsesivo Compulsivo/diagnóstico , Adolescente , Niño , Estudios Transversales , Femenino , Humanos , Masculino , AutoinformeRESUMEN
BACKGROUND AND OBJECTIVES: The purpose of this study was to compare the frontal executive functions of exercise addicts, moderate exercisers, and exercise avoiders. We hypothesized that exercise addicts and avoiders would have poorer executive functions compared to moderate exercisers. METHODS: The Korean Exercise Addiction Scale was administrated to recruit participants. Electroencephalogram was recorded at the frontal scalp sites. RESULTS: The results showed that P3 and N2 latencies were shorter in the exercise addiction group than in the avoidance and moderate groups. Exercise addicts and moderate exercisers showed faster response time than exercise avoiders. DISCUSSION: P3 and N2 latencies and P3 and N2 amplitudes were discussed in terms of executive functions. SCIENTIFIC SIGNIFICANCE: This study showed that exercise addiction did not impair executive functions, but increased cognitive functioning. (Am J Addict 2016;25:466-471).
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Conducta Adictiva/fisiopatología , Cognición/fisiología , Función Ejecutiva/fisiología , Ejercicio Físico , Adulto , Técnicas de Observación Conductual/métodos , Electroencefalografía/métodos , Ejercicio Físico/fisiología , Ejercicio Físico/psicología , Femenino , Humanos , Masculino , Tiempo de Reacción/fisiología , República de Corea , Estadística como AsuntoRESUMEN
The present study investigated psychophysiological differences between cognitive and motor tasks. Participants were 16 university students (male[Formula: see text][Formula: see text][Formula: see text]10, female[Formula: see text][Formula: see text][Formula: see text]6) aged between 24 to 31 years (mean[Formula: see text][Formula: see text][Formula: see text]27.6 years, SD[Formula: see text][Formula: see text] [Formula: see text] years). They were instructed to perform cognitive and motor tasks while their brain activity was simultaneously recorded using electroencephalography (EEG). A 3(task)[Formula: see text][Formula: see text][Formula: see text]8(area)[Formula: see text][Formula: see text][Formula: see text]4(bands) analysis of variance (ANOVA) was performed on theta, alpha and beta frequency bands. The results showed that the cognitive task resulted in a significantly higher spectral power in the theta band at frontal electrodes than did the motor task. This suggests that the frontal lobe might be engaged in problem solving, resulting in increased theta activity. However, there were no differences in alpha and beta activity between the two tasks. The present study provides psychophysiological evidence for classifying cognitive and motor tasks, which has been a controversial issue for task classifications in motor learning research.
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Encéfalo/fisiología , Cognición/fisiología , Actividad Motora/fisiología , Ritmo Teta/fisiología , Adulto , Ritmo alfa/fisiología , Ritmo beta/fisiología , Electroencefalografía , Femenino , Ritmo Gamma/fisiología , Humanos , Masculino , Pruebas Neuropsicológicas , Solución de Problemas/fisiología , Adulto JovenRESUMEN
[Purpose] The purpose of this study was to determine the effects of assisted aquatic movement and horseback riding therapies on emotion and brain activation in patients with cerebral palsy. [Subjects and Methods] Thirty-two right-handed patients with cerebral palsy (18 male, 14 female) whose ages ranged from 8 to 48â years participated in this experiment. Their cerebral palsy levels ranged from 1 to 3. The participants were assigned to one of three groups according to the experimental conditions: an assisted aquatic movement therapy group, a horseback riding therapy group, or a control group. Electroencephalograms, the Feeling Scale and the Felt Arousal Scale were examined as dependent variables. [Results] Analysis of self-reported data demonstrated a significant positive improvement in the emotions of participants in the assisted aquatic movement therapy group in comparison with the control group. With regard to the electroencephalogram analysis, the results of this study showed increased alpha power in the assisted aquatic movement therapy group compared with the horseback riding and control groups. [Conclusion] The results of this study suggest that professionals can consider assisted aquatic movement therapy as an effective therapeutic intervention for the improvement of mental health and brain activation.
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The present study compared brain activity of adolescents with or without burnout during their responses to a computerized version of the Stroop Color and Word Test. The Sport Adaptation of the Maslach Burnout Inventory was administered to 460 Korean high school student athletes. Electroencephalographic data were recorded from frontal, central, parietal, and occipital brain regions while these participants were performing the Stroop Color and Word Test. A 2 (group) × 2 (condition) × 15 (electrodes) three-way analysis of variance was used to analyze the data. Results indicated that the athletes without burnout exhibited significantly higher accuracy than their counterparts with burnout on the Stroop Color and Word Test. The athletes without burnout also showed higher amplitudes for theta, alpha, and beta power in the frontal areas than the athletes with burnout.
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Atletas/psicología , Agotamiento Profesional/fisiopatología , Agotamiento Profesional/psicología , Corteza Cerebral/fisiopatología , Electroencefalografía , Deportes/fisiología , Deportes/psicología , Test de Stroop/estadística & datos numéricos , Adolescente , Agotamiento Profesional/diagnóstico , Potenciales Evocados/fisiología , Femenino , Humanos , Corea (Geográfico) , Masculino , Psicometría/estadística & datos numéricos , Procesamiento de Señales Asistido por Computador , Encuestas y Cuestionarios , Adulto JovenRESUMEN
In baseball, one factor necessary for batters to decide whether to swing or not depends on what type of pitch is thrown. Oftentimes batters will look for their pitch (i.e., waiting for a fastball). In general, when a pitcher has many types of pitches in his arsenal, batters will have greater difficulty deciding upon the pitch thrown. Little research has been investigated the psychophysiology of a batters decision-making processes. Therefore, the primary purpose of this study was to determine how brain activation changes according to an increase in the number of alternatives (NA) available. A total of 15 male college baseball players participated in this study. The stimuli used in this experiment were video clips of a right-handed pitcher throwing fastball, curve, and slider pitches. The task was to press a button after selecting the fastball as the target stimulus from two pitch choices (fastball and curve), and then from three possibilities (fastball, curve, and slider). Functional and anatomic image scanning magnetic resonance imaging (MRI) runs took 4 and 5[Formula: see text]min, respectively. According to our analysis, the right precentral gyrus, left medial frontal gyrus, and right fusiform gyrus were activated when the NA was one. The supplementary motor areas (SMA) and primary motor cortex were activated when there were two alternatives to choose from and the inferior orbitofrontal gyrus was specifically activated with three alternatives. Contrary to our expectations, the NA was not a critical factor influencing the activation of related decision making areas when the NA was compared against one another. These findings highlight that specific brain areas related to decision making were activated as the NA increased.