Frontal Brain Activity and Subjective Arousal During Emotional Picture Viewing in Nightmare Sufferers.

ABSTRACT: Nightmares are intensely negative dreams that awaken the dreamer. Frequent nightmares are thought to reflect an executive deficit in regulating arousal. Within a diathesis-stress framework, this arousal is specific to negative contexts, though a differential susceptibility framework predicts elevated arousal in response to both negative and positive contexts. The current study tested these predictions by assessing subjective arousal and changes in frontal oxyhemoglobin (oxyHB) concentrations during negative and positive picture-viewing in nightmare sufferers (NM) and control subjects (CTL). 27 NM and 27 CTL subjects aged 18-35 rated subjective arousal on a 1-9 scale following sequences of negative, neutral and positive images; changes in oxyHB were measured by Near-Infrared Spectroscopy (N

SUBMITTER: Carr M 

PROVIDER: S-EPMC7561419 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature