1. .

2. Slide 2 Neuroscience: Exploring the Brain, 3rd Ed, Bear, Connors, and Paradiso Copyright © 2007 Lippincott Williams & Wilkins The Retinofugal Projection Right and Left Visual Hemifields

3. Slide 3 Neuroscience: Exploring the Brain, 3rd Ed, Bear, Connors, and Paradiso Copyright © 2007 Lippincott Williams & Wilkins The Retinofugal Projection Targets of the Optic Tract

4. Visual agnosia is an impairment in recognition of visually presented objects.

11. A scotoma (Greek σκότος/skótos, darkness; plural: scotomas or scotomata) is an area of partial alteration in the field of vision consisting of a partially diminished or entirely degenerated visual acuity that is surrounded by a field of normal – or relatively well-preserved – vision.Greekfield of visiondegeneratedvisual acuityvision A depiction of a scintillating scotoma that was almost spiral-shaped, with distortion of shapes but otherwise melting into the background similarly to the physiological blind spot, as may be caused by cortical spreading depressionscintillating scotomaphysiological blind spotcortical spreading depression

13. V1 damage Smoked glass immediately Visual noise 4d after (snow on a television) Cortically blind or BLINDSIGHT Perceived location w/o being able to see content (B.K.) Normal color, line, angle, and motion perception (D.B.) Primary and secondary vision? Some brain regions function w/o consciousness? https://www.youtube.com/watch?v=4x0HXC59Huw httpswww.youtube.com/watch?v=4x0HXC59Huw https://www.youtube.com/watch?v=ny5qMKTcURE V1 damage and scotoma and blindsight Blindsight is the ability of people who are cortically blind due to lesions in their striate cortex, also known as primary visual cortex or V1, to respond to visual stimuli that they do not consciously see (see Wiki).cortically blindstriate cortexvisual cortex

14. Blindsight is the ability of people who are cortically blind due to lesions in their striate cortex, also known as primary visual cortex or V1, to respond to visual stimuli that they do not consciously see (see Wiki).cortically blindstriate cortexvisual cortex Underlying mechanisms? Why such mechanisms? What does it tell us about?

15. Color blindness http://www.youtube.com/watch?v=XncZ3aPjXMY Color perception http://www.youtube.com/watch?v=evQsOFQju08 How color blindness is like http://www.youtube.com/watch?v=AUsups6Mk3Iwww.youtube.com/watch?v=AUsups6Mk3I

16. Motion blindness (akinetopia) http://www.youtube.com/watch?v=B47Js1MtT 4w Motion perception http://www.youtube.com/watch?v=tYFhDzQ1r YUwww.youtube.com/watch?v=tYFhDzQ1r YU

21. Face blindness http://www.youtube.com/watch?v=dxqsBk7W n-Y http://www.youtube.com/watch?v=dxqsBk7W n-Y http://www.youtube.com/watch?v=q8cXus7S NQY http://www.youtube.com/watch?v=q8cXus7S NQY Cases D and T: Higher-level visual processes Case D. Prosopagnosia (face blindness) Case T. Difficulty reading (alexia), naming, and lip reading

22. Disorders of visual pathways Disorders of cortical functions Visual agnosia Object agonsia Apperceptive agnosia Associate agonosia Other agnosias Prosopagnosia Alexia Visuospatial Agnosia