TY - JOUR
T1 - Theta oscillations in visual cortex emerge with experience to convey expected reward time and experienced reward rate
AU - Zold, Camila L.
AU - Hussain Shuler, Marshall G.
N1 - Publisher Copyright:
© 2015 the authors.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - The primary visual cortex (V1) is widely regarded as faithfully conveying the physical properties of visual stimuli. Thus, experience induced changes in V1 are often interpreted as improving visual perception (i.e., perceptual learning). Here we describe how, with experience, cue-evoked oscillations emerge in V1 to convey expected reward time as well as to relate experienced reward rate. We show, in chronic multisite local field potential recordings from rat V1, that repeated presentation of visual cues induces the emergence of visually evoked oscillatory activity. Early in training, the visually evoked oscillations relate to the physical parameters of the stimuli. However, with training, the oscillations evolve to relate the time in which those stimuli foretell expected reward. Moreover, the oscillation prevalence reflects the reward rate recently experienced by the animal. Thus, training induces experience-dependent changes in V1 activity that relate to what those stimuli have come to signify behaviorally: when to expect future reward and at what rate.
AB - The primary visual cortex (V1) is widely regarded as faithfully conveying the physical properties of visual stimuli. Thus, experience induced changes in V1 are often interpreted as improving visual perception (i.e., perceptual learning). Here we describe how, with experience, cue-evoked oscillations emerge in V1 to convey expected reward time as well as to relate experienced reward rate. We show, in chronic multisite local field potential recordings from rat V1, that repeated presentation of visual cues induces the emergence of visually evoked oscillatory activity. Early in training, the visually evoked oscillations relate to the physical parameters of the stimuli. However, with training, the oscillations evolve to relate the time in which those stimuli foretell expected reward. Moreover, the oscillation prevalence reflects the reward rate recently experienced by the animal. Thus, training induces experience-dependent changes in V1 activity that relate to what those stimuli have come to signify behaviorally: when to expect future reward and at what rate.
KW - Behavior
KW - Local field potential
KW - Oscillation
KW - Reward
KW - Timing
KW - Visual cortex
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U2 - 10.1523/JNEUROSCI.0296-15.2015
DO - 10.1523/JNEUROSCI.0296-15.2015
M3 - Article
C2 - 26134643
AN - SCOPUS:84936128790
SN - 0270-6474
VL - 35
SP - 9603
EP - 9614
JO - Journal of Neuroscience
JF - Journal of Neuroscience
IS - 26
ER -