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Updated: Dec 7, 2025

A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions
Published on: March 25, 2014
Prestimulus alpha power is related to the strength of stimulus representation
Louise C Barne1, Floris P de Lange2, André M Cravo1
1Centro de Matemática, Computação e Cognição, Universidade Federal do ABC (UFABC), São Bernardo do Campo, SP, Brazil.
Abstract:
Spatial attention can modulate behavioural performance and is associated with several electrophysiological markers. In this study, we used multivariate pattern analysis in electrophysiology data to investigate the effects of covert spatial attention on the quality of stimulus processing and its underlying mechanisms. Our results show that covert spatial attention led to (i) an anticipatory alpha power desynchronization; (ii) enhanced stimuli identity information. Moreover, we found that alpha power fluctuations in anticipation of the relevant stimuli boosted and prolonged the coding of stimulus identity.
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