Brain Inspired

BI 204 David Robbe: Your Brain Doesn’t Measure Time

Jan 29, 2025
David Robbe, a neuroscientist and leader of the Cortical-Basal Ganglia Circuits and Behavior Lab, dives into how we perceive time beyond traditional measurements. He challenges the notion of a 'clock' in our brains, suggesting that time estimations come from our interactions with the environment. Robbe explores the intriguing link between behavior and neural timing, highlights Bergson's philosophy on time and memory, and contrasts human cognition with AI's mechanical processing, raising questions about free will and survival instincts.
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INSIGHT

Time Measurement is External

  • We don't truly measure time internally, but rather estimate it based on external regularities.
  • Measurement, by definition, requires an external or observable standard.
ANECDOTE

Rodent Timing Experiments

  • David Robbe's research on time perception in rodents started with the assumption of an internal clock in the striatum.
  • Rodents in timing tasks often develop superstitious behaviors, challenging the internal clock hypothesis.
INSIGHT

Bergson's concept of Durée

  • Henri Bergson's concept of "durée" suggests we don't measure time directly but experience it as a continuous flow influenced by memory.
  • This flow is indivisible and cannot be measured directly, as measurement requires comparison with an external standard.
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