Category Archives: Top-down influences

“Perception is an active process. Art is about communication, not representation” – Chris Frith

What’s your preferred sensory modality? And why? I think I prefer combinations of modalities. Warm sun, blue sky, light breeze, the smell of spring.   How did you begin to be interested in perception? Learning about hallucinations while working in a mental asylum in the 1960s (and reading Aldous Huxley).   Among your recent papers which is your favorite and why? […]

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Vetter et al. 2014. “Decoding Sound and Imagery Content in Early Visual Cortex”

Abstract. Human early visual cortex was traditionally thought to process simple visual features such as orientation, contrast, and spatial frequency via feedforward input from the lateral geniculate nucleus. However, the role of nonretinal influence on early visual cortex is so far insufficiently investigated despite much evidence that feedback connections greatly outnumber feedforward connections. Here, we explored in five fMRI experiments how […]

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“I got interested in perception by accident!” – Yasmina Jraissati

What is the most interesting paper you came across recently? Why? I was stimulated by Levinson and Majid’s “Differential ineffability and the senses”. They ask whether smell and other sensory modalities like vision are differentially ineffable for structural or language/cultural relative reasons. It also offers interesting ideas as to how to account for cross-modal associations using dimensions of perceptual space. […]

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