PSYC 1001 1st Edition Lecture 24Outline of Last Lecture I. Exam 3a. The sensesi. TransductionOutline of Current Lecture I. Eyesa. Retinab. Rods and ConesII. Processing visual informationa. Parallel ProcessingCurrent LectureI. Eyesa. Retina: Light-sensitive inner surface of the eye.i. Absorbs lightii. Starts processing the imageiii. Blind Spot: Place where the optic nerve exits the eye.1. The eye ‘guesses’ what should be there and fills it in.iv. Contains receptors of vision.1. Photons of light cause a chemical charge in the receptors. Rods Cones- 120 million 6 million- Sensitive in dim light Not sensitive in dim light- Black and white vision Color vision- Concentrated in the periphery Concentrated in the fovea- Many-to-one neural connections One-to-one neural connections- Not sensitive to details Sensitive to detailsII. Processing visual informationa. BrainThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. Main pathwayii. Retina= Optic Nerve= Thalamus= Occipital Lobe iii. Feature Detectors: Neurons in the brain that respond to specific features of the stimulus.1. Example: Lines of a certain orientation.2. Example: Shape, angle and movement.b. Parallel Processing: Can process several features at the same time.i. Example: Color, motion, shape,
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