PSYO 2470 Lecture Notes - Lecture 3: David H. Hubel, Correlation Does Not Imply Causation, Facial Recognition System
2 May 2017
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Document Summary
Extent of space seen by one eye. Points where you can no longer see an object with one eye marks the limits of visual field. Left visual field is imaged on the right side of the retina. Right visual field is imaged on the left side of the retina. Ability of the eye to distinguish two points near each other. Begins the conversion of light energy into neural energy. Laminar organization of the retina: laminar organization cells organized in layers. Involved in photoreceptor maintanence: pig(cid:373)e(cid:374)t epitheliu(cid:373) also a(cid:271)sor(cid:271)s light that does(cid:374)"t rea(cid:272)h photoreceptors. Inner most layer is the ganglion cell layer: cell bodies of ganglion cells. Inner plexiform layer: synaptic contacts between bipolar cells, amacrine cells, ganglion cells. Conversion of electromagnetic radiation to neural signals. Four regions: outer segment, contains membranous disks, light sensitive photopigments in disk membranes, absorb light and trigger changes in photoreceptor membrane potential. Rod photoreceptors: long, cylindrical outer segment, contains many disks.
