Grey-matter differences related to true and false recognition of emotionally charged stimuli - a voxel based morphometry study

Artur Marchewka , Katarzyna Jednoróg , Anna Nowicka , Andre Brechmann , Anna Grabowska

Abstract

The issue concerning the neuronal basis of true and false recognition is still a subject of extensive debate. In the present study voxel based morphometry (VBM) was used to examine structural brain correlates of these processes. Since several studies indicate that emotional content facilitates false recognition we decided to use emotional stimuli. Behavioral measures, i.e., true and false recognition rates were used as covariants in VBM analyses. VBM results indicated that the true recognition correlated positively with grey-matter (GM) density in bilateral amygdala, anterior cingulate and middle temporal gyrus, i.e., brain regions, involved in the memory of emotional material, as revealed by fMRI results. False recognition correlated negatively with GM density in prefrontal areas (BA47 and BA9), supporting the role of the prefrontal cortex in monitoring retrieval and limiting the probability of false recognition. Thus our VBM findings (i) point to the brain structures critical for co
Author Artur Marchewka (Wydział Psychologii)
Artur Marchewka,,
- Wydział Psychologii
, Katarzyna Jednoróg
Katarzyna Jednoróg,,
-
, Anna Nowicka
Anna Nowicka,,
-
, Andre Brechmann
Andre Brechmann,,
-
, Anna Grabowska (Wydział Psychologii)
Anna Grabowska,,
- Wydział Psychologii
Journal seriesNeurobiology Of Learning And Memory, ISSN 1095-9564, (0 pkt)
Issue year2009
Vol92
No1
Pages99 - 105
Publication size in sheets0.5
Keywords in EnglishEmotions*, Brain/*physiology, Pattern Recognition, Visual/*physiology, Recognition (Psychology)/*physiology, Brain Mapping, Female, Humans, Imaging, Three-Dimensional, Magnetic Resonance Imaging, Male, Photic Stimulation, Regression Analysis, Young Adult
URL http://search.ebscohost.com/login.aspx?direct=true&db=cmedm&AN=19292997&lang=pl&site=ehost-live
Languageen angielski
Score (nominal)0
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