Attenuation of Self-Generated Tactile Sensations is Predictive, not Postdictive.

Attenuation of Self-Generated Tactile Sensations is Predictive, not Postdictive.

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When one finger touches the other, the resulting tactile sensation is michael harris sunglasses 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 duospiritalis.com process.This predictive attenuation of self-generated sensation may have evolved to enhance the perception of sensations with an external cause.