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Dopamine type 2 receptors control inverse temperature beta for transition from perceptual inference to reinforcement learning
Published on Jul 28, 20151738 Views
Decisions are based on a combination of immediate perception and previous experience. If the mapping between actions and outcomes in a context is unpredictable over time, decisions must be made on t
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Chapter list
Injection of Dopamine type 2 antagonist decreases inverse temperature in reinforcement learning00:00
Example - 100:16
Example - 200:16
Decision Making - 100:31
Decision Making - 200:41
Role of Dopamine?00:46
Oculomotor sequential decision making task00:54
Stumulus and movement - 101:02
Stumulus and movement - 201:34
Stumulus and movement - 301:35
Stumulus and movement - 401:53
Temporal sequence of choices in a single trial - 101:58
Temporal sequence of choices in a single trial - 202:12
Temporal sequence of choices in a single trial - 302:22
Temporal sequence of choices in a single trial - 402:30
Temporal sequence of choices in a single trial - 502:32
Temporal sequence of choices in a single trial - 602:38
Eight possible sequences03:20
Task conditions - 103:51
Task conditions - 204:02
Task conditions - 304:06
Task conditions - 404:09
Fixed vs. random condition04:16
Prefrontal Cortex and Striatum - 104:50
Prefrontal Cortex and Striatum - 205:12
Prefrontal Cortex and Striatum - 305:24
Reinforcement Learning05:34
Selecting an action06:00
How do striatal neurons represent the dicision making process?07:09
The dStr represents the value of actions - 107:21
The dStr represents the value of actions - 208:00
Does dopamine mediate the transition from perceptual inference to reinforcement learning?08:30
Use of reinforcement learning from previous trials - 109:05
Use of reinforcement learning from previous trials - 209:42
Effects of injection of D2R antagonist - 110:21
Effects of injection of D2R antagonist - 211:04
Effects of saline and D2R antagonist11:19
Dopamine type 2 receptors control inverse temperature11:35
No change in the learning rates and weights of mixture of two colors12:03
Conclusions - 112:30
Conclusions - 212:31
Conclusions - 312:48
Conclusions - 413:07
Acknowledgement13:22