Research Keyword: visual perception

Enhanced visual contrast suppression during peak psilocybin effects: Psychophysical results from a pilot randomized controlled trial

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Researchers studied how psilocybin affects the way our visual system processes contrast and surrounding visual information. Participants completed vision tests after taking psilocybin or placebo, and the results showed that psilocybin made people more influenced by surrounding visual elements when judging the brightness of objects. Interestingly, the stronger the visual effects people experienced from psilocybin, the more their perception was influenced by these surroundings. This finding might help explain how psilocybin affects mood and could help scientists better understand depression and other conditions affecting vision.

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An artificial visual neuron with multiplexed rate and time-to-first-spike coding

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Scientists created an artificial neuron that mimics how biological eyes process visual information by combining two different encoding methods simultaneously. This device can fire electrical spikes at different frequencies (like how biological neurons respond to brightness) while also measuring precise timing of the first spike (which captures rapid changes). When tested with an autonomous vehicle system, this artificial neuron performed better than using either encoding method alone, suggesting it could lead to more efficient and capable robot vision systems.

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