PSY 101 Lecture Notes - Lecture 2: Absolute Threshold, Teaspoon, Psychophysics
Document Summary
Sensation: earlier & more biological: the process by which sensory organs in the eyes, ears, nose, mouth, skin, and other tissues receive and detect stimuli, data-based processing (processing environmental stimuli: sights, Perception: later & more psychological sounds, smells: the organization and interpretation of sensory stimuli by the brain, knowledge-based processing (mental image of mom vs. sister) Human sensory systems: vision, hearing (audition, smell (olfactory, taste (gustation, somatosenses. Receptor cells: specific receptor cells (vision: rods & cones) for each sense stimulate neurons in the cns, receptor cells transduce (translate/convert) sensory input from the environment (sights, sounds, smells) action potentials. Vision: the electromagnetic spectrum & eye: 1. Cornea: transparent covering over the eye which serves partly to begin to focus light on the back of the eye: 2. Pupil: controls the amount of light which is let into the eye (when it gets bright, the pupil constricts. When it gets darker, your pupil expands: 3.
