| Authors: |
Nick Yeung
and Alan G Sanfey
|
| URL: |
http://dx.doi.org/10.1523/JNEUROSCI.4537-03.2004 |
| Description: |
CCNLab BibTeX |
| Tags: |
Adolescent;
Adult;
Behavior;
Brain
Choice
Electroencephalography;
Event-Related
Feedback,
Female;
Gambling;
Humans;
Male;
Mapping;
Motivation;
P300;
Potentials,
Psychological;
Reward;
Risk-Taking
|
| Abstract: |
Previous research has shown that two components of the event-related
brain potential, the P300 and feedback negativity, are sensitive
to information about rewards and penalties. The present study investigated
the properties of these components in a simple gambling game that
required participants to choose between cards that were unpredictably
associated with monetary gains and losses of variable magnitude.
The aim was to determine the sensitivity of each component to two
critical features of reward stimuli: magnitude (small or large) and
valence (win or loss). A double dissociation was observed, with the
P300 sensitive to reward magnitude but insensitive to reward valence
and the feedback negativity showing the opposite pattern, suggesting
that these two fundamental features of rewarding stimuli are evaluated
rapidly and separately in the human brain. Subsequent analyses provided
additional evidence of functional dissociations between the feedback
negativity and P300. First, the P300 (but not the feedback negativity)
showed sensitivity to the reward value of alternative, nonselected
stimuli. Second, individual differences in the amplitude of the feedback
negativity correlated with individual differences in risk-taking
behavior observed after monetary losses, whereas individual differences
in P300 amplitude were related to behavioral adjustments observed
in response to alternative, unchosen outcomes. |
@article{YeungSanfey04a,
title = {Independent coding of reward magnitude and valence in the human brain.},
author = {Nick Yeung and Alan G Sanfey},
journal = {J Neurosci},
month = {Jul},
number = {28},
pages = {6258--6264},
url = {http://dx.doi.org/10.1523/JNEUROSCI.4537-03.2004},
volume = {24},
year = {2004},
description = {CCNLab BibTeX},
abstract = {Previous research has shown that two components of the event-related
brain potential, the P300 and feedback negativity, are sensitive
to information about rewards and penalties. The present study investigated
the properties of these components in a simple gambling game that
required participants to choose between cards that were unpredictably
associated with monetary gains and losses of variable magnitude.
The aim was to determine the sensitivity of each component to two
critical features of reward stimuli: magnitude (small or large) and
valence (win or loss). A double dissociation was observed, with the
P300 sensitive to reward magnitude but insensitive to reward valence
and the feedback negativity showing the opposite pattern, suggesting
that these two fundamental features of rewarding stimuli are evaluated
rapidly and separately in the human brain. Subsequent analyses provided
additional evidence of functional dissociations between the feedback
negativity and P300. First, the P300 (but not the feedback negativity)
showed sensitivity to the reward value of alternative, nonselected
stimuli. Second, individual differences in the amplitude of the feedback
negativity correlated with individual differences in risk-taking
behavior observed after monetary losses, whereas individual differences
in P300 amplitude were related to behavioral adjustments observed
in response to alternative, unchosen outcomes.},
pmid = {15254080}, timestamp = {2007.12.14}, pii = {24/28/6258}, bdsk-url-1 = {http://dx.doi.org/10.1523/JNEUROSCI.4537-03.2004}, bdsk-url-2 = {http://dx.doi.org/10.1523/JNEUROSCI.4537-03.2004}, owner = {frankmj}, doi = {10.1523/JNEUROSCI.4537-03.2004},
keywords = {Adolescent; Adult; Behavior; Brain Choice Electroencephalography; Event-Related Feedback, Female; Gambling; Humans; Male; Mapping; Motivation; P300; Potentials, Psychological; Reward; Risk-Taking }
}
::