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Updated: Jun 2, 2026

Presynaptic Dopamine Dynamics in Striatal Brain Slices with Fast-scan Cyclic Voltammetry

Presynaptic Dopamine Dynamics in Striatal Brain Slices with Fast-scan Cyclic Voltammetry

Published on: January 12, 2012

Sub-second and multi-second dopamine dynamics underlie variability in human time perception.

Renata Sadibolova^1,2,3, Emily K DiMarco^4,5, Angela Jiang⁵

¹Department of Psychology, Goldsmiths, University of London; London SE14 6NW, UK.

Medrxiv : the Preprint Server for Health Sciences

|February 19, 2024

Summary

This summary is machine-generated.

Dopamine levels in the human brain influence our perception of time. Fast dopamine signals cause time intervals to feel shorter, while slow dopamine changes reduce timing accuracy.

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Area of Science:

Neuroscience
Cognitive Psychology
Human Subject Research

Background:

The perception of time is crucial for human cognition and emotion.
Dopamine's role in timing is established in animal models but not directly studied in humans.
Understanding dopamine's impact on human time perception is a key research gap.

Approach:

Measured dopamine levels in the human striatum with high temporal resolution during deep brain stimulation surgery.
Assessed participants' subjective judgments of time intervals.
Correlated real-time dopamine fluctuations with temporal perception accuracy and biases.

Key Points:

Fast, phasic dopamine releases were linked to the underestimation of time intervals.
Slower, tonic decreases in dopamine correlated with reduced precision in temporal judgments.
This highlights a complex relationship between dopamine dynamics and the human experience of time.

Conclusions:

Dopamine dynamics, including both rapid signals and slower changes, significantly modulate human time perception.
These findings provide novel insights into the neurochemical basis of subjective time.
The study underscores the intricate role of the dopaminergic system in conscious temporal experience.