Suárez-Pinilla, M; Muñoz-Moldes, S; Bekinschtein, T; (2015) Probabilistic trend detection in different levels of consciousness. Presented at: 19th Annual Meeting of the Association for the Scientific Study of Consciousness (ASSC 19), Paris, France.

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Abstract

We aimed to explore how alertness modulates the management of probabilistic information in order to accurately detect changing patterns in a stream of conflicting evidence. We hypothesized that a decreased level of alertness might disrupt the strategy deployed to approach a probabilistic reversal learning task by impairment of working memory, of integration and value-updating of each piece of evidence, and decreased cognitive control. Our results showed that performance in probabilistic reversal learning is altered in decreased alertness, in relation to a higher frequency of spontaneous switching between patterns. Besides, response time and type suggest an impaired ability to generate a stable evidence-based strategy, although evidence-driven responses are present even in heavy drowsiness.

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