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Norepinephrine and Neural Interrupts

Dayan, Peter ; Yu, Angela J. (2005)
Norepinephrine and Neural Interrupts.
Neural Information Processing Systems. Vancouver and Whistler, BC, Canada (05.12.2005-10.12.2005)
Conference or Workshop Item, Bibliographie

Abstract

Experimental data indicate that norepinephrine is critically involved in aspects of vigilance and attention. Previously, we considered the function of this neuromodulatory system on a time scale of minutes and longer, and suggested that it signals global uncertainty arising from gross changes in environmental contingencies. However, norepinephrine is also known to be activated phasically by familiar stimuli in well learned tasks. Here, we extend our uncertainty-based treatment of nore pinephrine to this phasic mode, proposing that it is involved in the detection and reaction to state uncertainty within a task. This role of norepinephrine can be understood through the metaphor of neural interrupts.

Item Type: Conference or Workshop Item
Erschienen: 2005
Creators: Dayan, Peter ; Yu, Angela J.
Type of entry: Bibliographie
Title: Norepinephrine and Neural Interrupts
Language: English
Date: 5 December 2005
Place of Publication: Vancouver and Whistler, BC, Canada
Publisher: MIT Press
Book Title: Advances in Neural Information Processing Systems
Series Volume: 18
Event Title: Neural Information Processing Systems
Event Location: Vancouver and Whistler, BC, Canada
Event Dates: 05.12.2005-10.12.2005
URL / URN: https://papers.nips.cc/paper_files/paper/2005/hash/b2ea5e977...
Abstract:

Experimental data indicate that norepinephrine is critically involved in aspects of vigilance and attention. Previously, we considered the function of this neuromodulatory system on a time scale of minutes and longer, and suggested that it signals global uncertainty arising from gross changes in environmental contingencies. However, norepinephrine is also known to be activated phasically by familiar stimuli in well learned tasks. Here, we extend our uncertainty-based treatment of nore pinephrine to this phasic mode, proposing that it is involved in the detection and reaction to state uncertainty within a task. This role of norepinephrine can be understood through the metaphor of neural interrupts.

Divisions: 03 Department of Human Sciences
03 Department of Human Sciences > Institute for Psychology
Date Deposited: 10 Jan 2024 18:36
Last Modified: 10 Jan 2024 18:36
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