Segregated and integrated coding of reward and punishment in the cingulate cortex
Juri Fujiwara1, Philippe N Tobler, Masato Taira
1Division of Systems Neuroscience, Tohoku University Graduate School of Life Sciences, Aoba-ku, Sendai 980-8577, Japan.
Journal of Neurophysiology
|April 3, 2009
Summary
The cingulate cortex processes both monetary reward and punishment. Distinct subregions within the cingulate cortex show separate and common coding for gains and losses, potentially linked to emotional processing.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Decision Making
Background:
- The cingulate cortex is implicated in processing both reward and punishment.
- Understanding the specific subregions involved in processing positive (reward) and negative (punishment) affective values is crucial.
Purpose of the Study:
- To investigate whether distinct or overlapping subregions of the cingulate cortex process monetary reward and punishment.
- To map the neural correlates of gain and loss processing within the cingulate cortex.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was employed during a free-choice task.
- Cingulate cortex activations were compared across varying levels of monetary gain and loss.
Main Results:
- Gain-specific activation was observed in the anterior and posterior cingulate cortex.
- Loss-specific activation was found in the middle and posterior anterior cingulate cortex.
- Integrated coding of both gain and loss occurred in the dorsal anterior cingulate cortex, bordering the medial prefrontal cortex.
- Unspecific activation to both gains and losses, possibly related to attention, was noted in dorsal and middle cingulate regions.
Conclusions:
- Distinct subregions of the cingulate cortex are involved in the separate coding of monetary reward and punishment.
- Common coding mechanisms for gain and loss exist within specific cingulate areas.
- Findings suggest an overlap between reward/punishment-specific areas and those processing positive/negative emotions.
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