Neural Mechanisms of Positive Mood Induced Modulation of Reality Monitoring

Frontiers in Human Neuroscience

Patrick Slattery¹  Aditi Shastri¹  Karuna Subramaniam¹  Daniel H Mathalon¹  Sophia Vinogradov¹  Srikantan Nagarajan¹  Jeevit Gill¹ 

[1] University of Califronia San Francisco;

关键词: fMRI;    Medial prefrontal cortex;    source memory;    Reality Monitoring;    positive mood;   

DOI  :  10.3389/fnhum.2016.00581

来源: DOAJ

【 摘 要 】

This study investigates the neural mechanisms of mood induced modulation of cognition, specifically, on reality monitoring abilities.Reality monitoring is the ability to accurately distinguish the source of self-generated information from externally-presented contextual information. When participants were in a positive mood, compared to a neutral mood, they significantly improved their source memory identification abilities, particularly for self-generated information. However, being in a negative mood had no effect on reality monitoring abilities.Additionally, when participants were in a positive mood state, they showed activation in several regions that predisposed them to perform better at reality monitoring.Specifically, positive mood induced activity within the medial prefrontal cortex (mPFC) and posterior cingulate cortex (PCC) was associated with improvements in subsequent identification of self-generated information, and positive mood induced activation within the striatum (putamen) facilitated better identification of externally-presented information.These findings indicate that regions within mPFC, PCC and striatum are sensitive to positive mood-cognition enhancing effects that enable participants to be better prepared for subsequent reality monitoring decision-making.

【 授权许可】

Unknown