Next Article in Journal
Sex Differences in Behavioral Outcomes Following Temperature Modulation During Induced Neonatal Hypoxic Ischemic Injury in Rats
Next Article in Special Issue
Facial Feedback Affects Perceived Intensity but Not Quality of Emotional Expressions
Previous Article in Journal
Association Study between the CD157/BST1 Gene and Autism Spectrum Disorders in a Japanese Population
Previous Article in Special Issue
Functional Neuroimaging Correlates of Autobiographical Memory Deficits in Subjects at Risk for Depression
Open AccessArticle

Acute Stress Dysregulates the LPP ERP Response to Emotional Pictures and Impairs Sustained Attention: Time-Sensitive Effects

Department of Psychology and Neuroscience, Nova Southeastern University, Ft. Lauderdale, FL 33314, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Derek G.V. Mitchell
Brain Sci. 2015, 5(2), 201-219; https://doi.org/10.3390/brainsci5020201
Received: 30 January 2015 / Revised: 12 May 2015 / Accepted: 14 May 2015 / Published: 20 May 2015
(This article belongs to the Special Issue Emotion, Cognition and Behavior)
Stress can increase emotional vigilance at the cost of a decrease in attention towards non-emotional stimuli. However, the time-dependent effects of acute stress on emotion processing are uncertain. We tested the effects of acute stress on subsequent emotion processing up to 40 min following an acute stressor. Our measure of emotion processing was the late positive potential (LPP) component of the visual event-related potential (ERP), and our measure of non-emotional attention was the sustained attention to response task (SART). We also measured cortisol levels before and after the socially evaluated cold pressor test (SECPT) induction. We found that the effects of stress on the LPP ERP emotion measure were time sensitive. Specifically, the LPP ERP was only altered in the late time-point (30–40 min post-stress) when cortisol was at its highest level. Here, the LPP no longer discriminated between the emotional and non-emotional picture categories, most likely because neutral pictures were perceived as emotional. Moreover, compared to the non-stress condition, the stress-condition showed impaired performance on the SART. Our results support the idea that a limit in attention resources after an emotional stressor is associated with the brain incorrectly processing non-emotional stimuli as emotional and interferes with sustained attention. View Full-Text
Keywords: acute stress; emotion; ERP; late positive potential; sustained attention acute stress; emotion; ERP; late positive potential; sustained attention
Show Figures

Figure 1

MDPI and ACS Style

Alomari, R.A.; Fernandez, M.; Banks, J.B.; Acosta, J.; Tartar, J.L. Acute Stress Dysregulates the LPP ERP Response to Emotional Pictures and Impairs Sustained Attention: Time-Sensitive Effects. Brain Sci. 2015, 5, 201-219.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop