NEUR 2200 Lecture Notes - Lecture 13: Agnosia, Temporal Lobe, Receptive Field

• School: Carleton University
• Department: Neuroscience
• Course: NEUR 2200
• Professor: Matthew Holahan

Document Summary

Two type of ganglion cells: magnocellular (large) Receives input from rods (light and moving stimuli: parvocellular (small) Projection from the retinal to the lateral geniculate nucleus to the visual cortex: tectopulvinar system. Projection from the retina (magnocellular) to the superior colliculus to the thalamus to the parietal and the temporal visual are. How do i get to something: retinohypothalamic tract. Synapses in the tiny suprachiasmatic nucleus in the hypothalamus (circadian rhythm / sleep wake cycle) Geniculostriate pathway: from each lgn, information from each retina is sent to adjacent cortical columns (separates information) Striate cortex v1 (primary visual): receives information from the lgn (neurons are separated in columns) Extrastriate cortex v2: outside the strait cortex (neurons start to mix together) Simple cells: receptive field with a rectangular on-off arrangement excited by bars of. Interblob: region that separates blobs (form and motion) light in particular orientation (orientation detector)