TY - JOUR
T1 - Neural mechanisms of positive mood induced modulation of reality monitoring
AU - Subramaniam, Karuna
AU - Gill, Jeevit
AU - Slattery, Patrick
AU - Shastri, Aditi
AU - Mathalon, Daniel H.
AU - Nagarajan, Srikantan
AU - Vinogradov, Sophia
N1 - Publisher Copyright:
© 2016 Subramaniam, Gill, Slattery, Shastri, Mathalon, Nagarajan and Vinogradov.
PY - 2016/11/15
Y1 - 2016/11/15
N2 - 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.
AB - 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.
KW - Medial prefrontal cortex
KW - Positive mood induction
KW - Reality monitoring
KW - Source memory
KW - fMRI
UR - http://www.scopus.com/inward/record.url?scp=84995912381&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84995912381&partnerID=8YFLogxK
U2 - 10.3389/fnhum.2016.00581
DO - 10.3389/fnhum.2016.00581
M3 - Article
C2 - 27895571
AN - SCOPUS:84995912381
SN - 1662-5161
VL - 10
JO - Frontiers in Human Neuroscience
JF - Frontiers in Human Neuroscience
IS - NOV2016
M1 - 581
ER -