Coming to grips with a fundamental deficit in visual perception

Article Psychology

Shape-centered representations of bounded regions of space mediate the perception of objects

Gilles Vannuscorps et al.

Summary: The study reports a female individual who perceives 2D bounded regions of space with sharp edges and medium to high contrast as being rotated, mirrored, or both. However, her perception of 3D shapes and shapes with low contrast or blur remains intact. This suggests a stage in constructing the visual representation of a scene where mutually exclusive bounded regions are extracted and represented in shape-centered frames of reference.

COGNITIVE NEUROPSYCHOLOGY (2022)

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Review Anatomy & Morphology

Vision for action: thalamic and cortical inputs to the macaque superior parietal lobule

Michela Gamberini et al.

Summary: The article discusses the dorsal visual stream in the primate brain, which is responsible for the visual control of actions, and how it is split into lateral and medial routes involved in sensorimotor control of actions. Through studies of the reach-to-grasp network in macaque monkeys, it is found that areas in the superior parietal lobule receive and process visual and somatosensory information to guide limb interaction with objects effectively.

BRAIN STRUCTURE & FUNCTION (2021)

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Article Psychology