University of Cambridge > Talks.cam > Foster Talks > The Reward Prediction Error of Dopamine Neurons: What information does it convey and how is it generated?

  Browse A-Z

Log in

Googledetails Microsoftdetails

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹ️ Information

The Reward Prediction Error of Dopamine Neurons: What information does it convey and how is it generated?

Download to your calendar using vCal

If you have a question about this talk, please contact Philipe Mendonca .

The firing rate of midbrain dopamine neurons is increased briefly following reward events that are better than expected, a response that is aptly described as a “reward prediction error” and which is thought to teach reward value to the brain. I will present data showing that the firing of dopamine neurons signals only evidence for reward, and that they are insensitive to aversiveness. This indicates that reward and aversiveness are represented independently as two dimensions. We can infer the existence of four types of value-sensitive neurons corresponding to reward-ON (dopamine), reward-OFF, aversive-ON, and aversive-OFF. I will also propose that many if not all sensory-related neurons signal prediction errors, and I will describe how error signals are likely to be generated through a combination of synaptic inputs and voltage-regulated ion channels.

This talk is part of the Foster Talks series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Average on weekdays: 9211.02955368 kWh https://maths-cam-ac-uk.zoom.us/j/92821218455?pwd=aHFOZWw5bzVReUNYR2d5OWc1Tk15Zz09 Anglia Ruskin University, East Road, Cambridge CB1 1PT (Lecture Theatre: Lord Ashcroft LAB003)

Other talks

Favourite Plants: the common, the captivating, and the curious TBC LCLU Annual Talk: The Early Aqueous Environment of Mars Inferred From Mission Lifetime Results by the Curiosity Rover at Gale Crater Coming soon Title to be confirmed Wolfson Tool Factory
 

© 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity