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Related Experiment Video

Updated: Feb 10, 2026

Creating Dynamic Images of Short-lived Dopamine Fluctuations with lp-ntPET: Dopamine Movies of Cigarette Smoking

Creating Dynamic Images of Short-lived Dopamine Fluctuations with lp-ntPET: Dopamine Movies of Cigarette Smoking

Published on: August 6, 2013

What does dopamine mean?

Joshua D Berke¹

¹Departments of Neurology and Psychiatry, and Kavli Institute for Fundamental Neuroscience, University of California, San Francisco, San Francisco, CA, USA. joshua.berke@ucsf.edu.

Nature Neuroscience

|May 16, 2018

Summary

This summary is machine-generated.

Dopamine rapidly shapes behavior by signaling the value of expending resources like energy or attention. This neurotransmitter helps cells decide whether to learn or perform actions based on dynamic motivational cues.

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Murine Model for Parkinson's Disease: from 6-OH Dopamine Lesion to Behavioral Test

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Published on: January 15, 2010

Area of Science:

Neuroscience
Behavioral Neuroscience
Neurobiology

Background:

Dopamine is crucial for learning and motivation.
The precise role of dopamine's fast vs. slow signaling in behavior is debated.
Recent findings challenge the traditional view of dopamine signaling.

Purpose of the Study:

To propose an alternative model for how dopamine regulates ongoing behavior.
To explain how dopamine signals motivational value on rapid timescales.
To identify potential mechanisms for switching between learning and performance modes.

Main Methods:

Review of recent neuroscientific studies.
Analysis of dopamine signaling dynamics.
Hypothesizing molecular and cellular mechanisms.

Main Results:

Dopamine's motivational effects are sculpted locally at dopamine terminals, independent of cell firing.
Target neurons can rapidly switch between learning and performance states.
Striatal cholinergic interneurons are proposed as a potential switching mechanism.

Conclusions:

Dopamine provides a dynamic, subsecond estimate of resource expenditure value.
This model reconciles fast dopamine signaling with motivational functions.
Dopamine's impact is region-specific but consistently relates to resource management.