Cognition-emotion interactions are modulated by working memory capacity in individuals with schizophrenia
| Autor: | James A. Waltz, James M. Gold, Jaime K. Brown, Benjamin M. Robinson, Bern G. Lee, Gregory P. Strauss |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Adult
Male Emotions Short-term memory Neuropsychological Tests Attentional bias Stimulus (physiology) behavioral disciplines and activities Article Developmental psychology Cognition Predictive Value of Tests Distraction medicine Humans Attention Biological Psychiatry Psychiatric Status Rating Scales Visual search Analysis of Variance Memory Disorders Working memory Anhedonia Middle Aged Psychiatry and Mental health Memory Short-Term Case-Control Studies Schizophrenia Female medicine.symptom Psychology Photic Stimulation Cognitive psychology |
| Zdroj: | Schizophrenia Research. 141:257-261 |
| ISSN: | 0920-9964 |
| Popis: | Prior research provides evidence for aberrant cognition-emotion interactions in schizophrenia. In the current study, we aimed to extend these findings by administering the "distractor devaluation" task to 40 individuals with schizophrenia and 32 demographically matched healthy controls. The task consisted of a simple visual search task for neutral faces, followed by an evaluative response made for one of the search items (or a novel item) to determine whether prior attentional selection results in a devaluation of a previously unattended stimulus. We also manipulated working memory demands by preceding the search array with a memory array that required subjects to hold 0, 1, or 2 items in working memory while performing the search array and devaluation task, to determine whether the normative process by which attentional states influence evaluative response is limited by working memory capacity. Results indicated that individuals with schizophrenia demonstrated the typical distractor devaluation effect at working memory load 0, suggesting intact evaluative response. However, the devaluation effect was absent at working memory loads of 1 and 2, suggesting that normal evaluative responses can be abolished in people with schizophrenia when working memory capacity is exceeded. Thus, findings provide further evidence for normal evaluative response in schizophrenia, but clarify that these normal experiences may not hold when working memory demands are too high. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect