Explaining the Neurobiology of Illusions: A Talk from Caltech

Professor Markus Meister gives a fascinating talk on the neurobiology of vision as part of a TEDx conference at Caltech. He references two visual illusions both of which involve colour perception. Two very interesting explanations are offered based on sensory processing in the retina and possible cells responsible for these effects are identified.

Contrasting Visual Hallucinations and Visual Illusions

Visual hallucinations are complex phenomenon that occur in many types of illness. Visual hallucinations are distinct from visual illusions. Visual illusions occur in the presence of a visual stimulus whilst visual hallucinations occur without this stimulus. A better understanding of visual illusions will be helpful in better understanding visual hallucinations.

The Promise of Neuroscience

The neuroscience of visions is well developed. Visual pathways in many species including humans have been very well characterised. Professor Meister’s talk hints at the sophisticated understanding of the circuitry particularly in the retina. If common themes are identified at the stage of retinal processing it may simplify the task of linking phenomenological experience and psychopathology to neurobiology.

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7 thoughts on “Explaining the Neurobiology of Illusions: A Talk from Caltech

  1. Pingback: The Effects of Changing Contrast and Colour in an Image: Continuing with a Visual Illusion Experiment – Part 6 | The Amazing World of Psychiatry: A Psychiatry Blog

  2. Pingback: Creating a Visual Illusion Based on Contrast: Continuing with a Visual Illusion Experiment – Part 7 | The Amazing World of Psychiatry: A Psychiatry Blog

  3. Pingback: The Effect of Colour on a Contrast Illusion: Continuing with a Visual Illusion Experiment – Part 8 | The Amazing World of Psychiatry: A Psychiatry Blog

  4. Pingback: A Multicontrast Contrast Illusion? Continuing with a Visual Illusion Experiment – Part 9 | The Amazing World of Psychiatry: A Psychiatry Blog

  5. Pingback: Contrast Illusions and Geometry: Continuing with a Visual Illusion Experiment – Part 10 | The Amazing World of Psychiatry: A Psychiatry Blog

  6. Pingback: Intermezzo: A Visual Illusion Experiment – Part 11 | The Amazing World of Psychiatry: A Psychiatry Blog

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