Event-Related Neural Response to Emotional Picture Stimuli Following Sleep Deprivation

The impact of sleep deprivation on various stages of information processing was investigated during a valance categorization picture task using temporally sensitive event-related potentials (ERPs). Young, healthy, good sleepers were randomly assigned to a total sleep deprivation (n = 22) or sleep co...

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Bibliographic Details
Published in:Psychology & Neuroscience 2015-03, Vol.8 (1), p.102-113
Main Authors: Cote, Kimberly, Jancsar, Cara, Hunt, Bryce
Format: Article
Language:English
Subjects:
Attention
Cognitive Processes
Decision Making
Emotions
Evoked Potentials
Female
Human
Male
Sleep Deprivation
Visual Stimulation
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Summary:The impact of sleep deprivation on various stages of information processing was investigated during a valance categorization picture task using temporally sensitive event-related potentials (ERPs). Young, healthy, good sleepers were randomly assigned to a total sleep deprivation (n = 22) or sleep control group (n = 23). Picture stimuli were presented at random for 1000 ms and rated as very-positive, slightly positive, slightly negative, or very-negative. ERP measures included a parietal-occipital positive peak (P1) reflecting early sensory processing and "reactivity," and a central-parietal Late Positive Potential (LPP) peak indexing sustained attention toward stimuli. There was a significant Group-by-Valance interaction for LPP amplitude; sleep-deprived participants had a larger LPP than controls to positive and negative, but not neutral pictures. Both groups had larger LPPs to positive and negative pictures relative to neutral pictures, but only the sleep-deprived group had a larger LPP to negative compared with positive stimuli. Sleep-deprived individuals with a lower reappraisal strategy in emotion regulation style produced a relatively larger LPP response to negative pictures. In conclusion, sleep deprivation did not influence early sensory processing or attention capture but led to greater sustained allocation of attention toward emotional pictures, particularly negative stimuli. Enhanced attention toward emotional stimuli may result in failure to attend to other relevant information and poor decision making, and may be especially problematic for individuals with lower emotion reappraisal strategies.
ISSN:1984-3054
1983-3288
DOI:10.1037/h0100354