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Related Experiment Video

Updated: May 2, 2026

Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals

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Published on: October 31, 2011

The evolutionary function of conscious information processing is revealed by its task-dependency in the olfactory

Andreas Keller¹

¹Philosophy Program, Graduate Center, The City University of New York New York, NY, USA.

Frontiers in Psychology

|February 20, 2014

Summary

Conscious processing of olfactory information is essential for navigating complex situations with multiple behavioral choices. This evolutionary function guides decision-making when faced with numerous response options.

Keywords:

consciousness evolution information processing olfaction task-dependency

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Area of Science:

Neuroscience
Cognitive Science
Olfactory Research

Background:

Olfactory stimuli can be processed consciously or non-consciously.
Some olfactory behaviors necessitate conscious awareness.

Purpose of the Study:

To contrast conscious and non-conscious olfactory information processing.
To determine the evolutionary function of conscious olfactory processing.

Main Methods:

Comparative analysis of behavioral responses to olfactory stimuli.
Examination of tasks with varying numbers of behavioral options.

Main Results:

Conscious processing is required for tasks with numerous behavioral options.
Non-conscious processing suffices for simpler tasks.

Conclusions:

Conscious information processing evolved to guide behavior in complex choice scenarios.
The primary evolutionary role of consciousness in olfaction is to manage decision-making among multiple response pathways.