feature detection
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Context-dependent motion processing in the retina
A critical function of sensory systems is to reliably extract ethologically relevant features from the complex natural environment. A classic model to study feature detection is the direction-selective circuit of the mammalian retina. In this talk, I will discuss our recent work on how visual contexts dynamically influence the neural processing of motion signals in the direction-selective circuit in the mouse retina.
Computational psychophysics at the intersection of theory, data and models
Behavioural measurements are often overlooked by computational neuroscientists, who prefer to focus on electrophysiological recordings or neuroimaging data. This attitude is largely due to perceived lack of depth/richness in relation to behavioural datasets. I will show how contemporary psychophysics can deliver extremely rich and highly constraining datasets that naturally interface with computational modelling. More specifically, I will demonstrate how psychophysics can be used to guide/constrain/refine computational models, and how models can be exploited to design/motivate/interpret psychophysical experiments. Examples will span a wide range of topics (from feature detection to natural scene understanding) and methodologies (from cascade models to deep learning architectures).
Stimulus-specific contributions of cortical and collicular pathways to visual feature detection
COSYNE 2025
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