Attenuation of self-generated tactile sensations is predictive, not postdictive.

Abstract:

:When one finger touches the other, the resulting tactile sensation is perceived as weaker than the same stimulus externally imposed. This attenuation of sensation could result from a predictive process that subtracts the expected sensory consequences of the action, or from a postdictive process that alters the perception of sensations that are judged after the event to be self-generated. In this study we observe attenuation even when the fingers unexpectedly fail to make contact, supporting a predictive process. This predictive attenuation of self-generated sensation may have evolved to enhance the perception of sensations with an external cause.

journal_name

PLoS Biol

journal_title

PLoS biology

authors

Bays PM,Flanagan JR,Wolpert DM

doi

10.1371/journal.pbio.0040028

keywords:

subject

Has Abstract

pub_date

2006-02-01 00:00:00

pages

e28

issue

2

eissn

1544-9173

issn

1545-7885

pii

05-PLBI-RA-0953R2

journal_volume

4

pub_type

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