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Front Hum Neurosci. 2013 Dec 05;7:842. doi: 10.3389/fnhum.2013.00842. eCollection 2013.

Positive and negative reinforcement activate human auditory cortex.

Frontiers in human neuroscience

Tina Weis, Sebastian Puschmann, André Brechmann, Christiane M Thiel

Affiliations

  1. Biological Psychology Lab, Department of Psychology, European Medical School, Carl von Ossietzky University Oldenburg, Germany.
  2. Biological Psychology Lab, Department of Psychology, European Medical School, Carl von Ossietzky University Oldenburg, Germany ; Cluster of Excellence, "Hearing4all," Carl von Ossietzky University Oldenburg, Germany.
  3. Special-Lab Non-invasive Brain Imaging, Leibniz Institute for Neurobiology Magdeburg, Germany.
  4. Biological Psychology Lab, Department of Psychology, European Medical School, Carl von Ossietzky University Oldenburg, Germany ; Cluster of Excellence, "Hearing4all," Carl von Ossietzky University Oldenburg, Germany ; Research Center Neurosensory Science, Carl von Ossietzky University Oldenburg, Germany.

PMID: 24367318 PMCID: PMC3852233 DOI: 10.3389/fnhum.2013.00842

Abstract

Prior studies suggest that reward modulates neural activity in sensory cortices, but less is known about punishment. We used functional magnetic resonance imaging and an auditory discrimination task, where participants had to judge the duration of frequency modulated tones. In one session correct performance resulted in financial gains at the end of the trial, in a second session incorrect performance resulted in financial loss. Incorrect performance in the rewarded as well as correct performance in the punishment condition resulted in a neutral outcome. The size of gains and losses was either low or high (10 or 50 Euro cent) depending on the direction of frequency modulation. We analyzed neural activity at the end of the trial, during reinforcement, and found increased neural activity in auditory cortex when gaining a financial reward as compared to gaining no reward and when avoiding financial loss as compared to receiving a financial loss. This was independent on the size of gains and losses. A similar pattern of neural activity for both gaining a reward and avoiding a loss was also seen in right middle temporal gyrus, bilateral insula and pre-supplemental motor area, here however neural activity was lower after correct responses compared to incorrect responses. To summarize, this study shows that the activation of sensory cortices, as previously shown for gaining a reward is also seen during avoiding a loss.

Keywords: auditory cortex; duration discrimination; feedback delivery; punishment; reward

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