Abstract
Depressive disorders have been associated with altered patterns of emotion processing. It is unclear whether these differences occur independently from intentionality during emotion processing. The current study aimed to examine the effect of implicit and explicit processing on the relationship between depressive mood and event-related brain potentials to emotional facial expressions. Electroencephalogram was recorded from 19 electrodes (10-20 International System) while participants performed sex discrimination (implicit) and
emotion discrimination (explicit) judgments of faces showing happy, sad, and neutral expressions. Explicit processing was associated with greater mean P1 (80-140ms) and N170 (140-200ms) amplitudes for sad and neutral than happy faces in depressed but not in control individuals. These differences were also reflected as greater P1 and N170 amplitude to happy faces in controls than in depressed individuals. No effects of group or emotion were found during implicit processing or for P3 and late positive potential (LPP) latency and amplitude in either condition. Results suggest depressive mood is associated with early differences in processing of happy facial expressions when attention is directed to emotional features of the stimuli but not during incidental processing of facial expression.
emotion discrimination (explicit) judgments of faces showing happy, sad, and neutral expressions. Explicit processing was associated with greater mean P1 (80-140ms) and N170 (140-200ms) amplitudes for sad and neutral than happy faces in depressed but not in control individuals. These differences were also reflected as greater P1 and N170 amplitude to happy faces in controls than in depressed individuals. No effects of group or emotion were found during implicit processing or for P3 and late positive potential (LPP) latency and amplitude in either condition. Results suggest depressive mood is associated with early differences in processing of happy facial expressions when attention is directed to emotional features of the stimuli but not during incidental processing of facial expression.
| Original language | English |
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| Pages | 102-102 |
| Number of pages | 1 |
| Publication status | Published - 8 Apr 2014 |
| Externally published | Yes |
| Event | Cognitive Neuroscience 21st Annual Meeting - Marriott Copley Place Hotel, Boston, United States Duration: 5 Apr 2014 → 8 Apr 2014 |
Conference
| Conference | Cognitive Neuroscience 21st Annual Meeting |
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| Country/Territory | United States |
| City | Boston |
| Period | 5/04/14 → 8/04/14 |