Relational Dynamics in Perception: Impacts on trial-to-trial variation

Details Relational Dynamics in Perception: Impacts on trial-to-trial variation Relational Dynamics in Perception: Impacts on trial-to-trial variation

2011-02-07

arxiv.org/abs/1102.1384v1

Front. Comput. Neurosci. (2011) 5:16

Biology

Quantitative Biology

Neurons and Cognition

11 pages, 3 figures

Scientific paper

10.3389/fncom.2011.00016

We show that trial-to-trial variability in sensory detection of a weak visual stimulus is dramatically diminished when rather than presenting a fixed stimulus contrast, fluctuations in a subject's judgment are matched by fluctuations in stimulus contrast. This attenuation of fluctuations does not involve a change in the subject's psychometric function. The result is consistent with the interpretation of trial-to-trial variability in this sensory detection task being a high-level meta-cognitive control process that explores for something that our brains are so used to: subject-object relational dynamics.

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