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Related Experiment Video

Updated: Jun 26, 2026

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish
10:56

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish

Published on: March 6, 2014

Fish see further than you might think.

Colin Allen1

  • 1University of California Santa Barbara, Department of Philosophy, Santa Barbara, USA colinallen@ucsb.edu https://colinallen.dnsalias.org/.

The Behavioral and Brain Sciences
|June 24, 2026
PubMed
Summary

Consciousness may not lag reality as much as previously thought, especially for aquatic animals. This suggests reality monitoring functions evolved earlier in vertebrate evolution.

Area of Science:

  • Neuroscience
  • Evolutionary Biology
  • Sensory Ecology

Background:

  • Fleming and Michel propose consciousness lags reality by up to 450 ms.
  • This temporal lag has implications for understanding consciousness and sensory processing.

Purpose of the Study:

  • To challenge the proposed temporal lag of consciousness by examining the "aquatic sensory volume" relevant to fish.
  • To explore the evolutionary timeline of consciousness functions like "reality monitoring".

Main Methods:

  • Theoretical analysis of sensory ecology in aquatic environments.
  • Comparison of proposed consciousness lag with the temporal requirements of fish sensory perception.

Main Results:

  • The "aquatic sensory volume" for ecologically relevant objects for fish appears to fall outside the proposed 450 ms lag window.

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  • This suggests that consciousness, for certain organisms and contexts, may operate with a shorter effective delay.

    • Conclusions:

    • The proposed consciousness lag may not universally apply, particularly in aquatic sensory systems.
    • If "reality monitoring" is a key function of consciousness, its evolutionary origins likely predate the vertebrate transition to land.