Psychology 1000 Midterm: Pysch Midterm2 Notes

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas-de Hoog

Document Summary

Sensation: transferring what we see in real world into nerve impulses. Absolute threshold: lowest intensity that stimulus can be detected correctly 50% of the time, decrease threshold, increase sensitivity. Signal detection theory: factor that in uence sensory judgments. Decision criterion: standard of certainty for detection of stimulus, in uenced by context. Sensory adaptation: demising sensitivity to an unchanging stimulus, occurs in all sensory modalities. Vision: rods: black and white vision, low light, cones: colour vision, acute vision (fovea, no photoreceptor = blind spot, trichromatic theory, opponent process theory, dual processes, color de ciency (cid:8213)(cid:1)trichromatic, dichromatic, monochrome ; healthy - have all 3. Smell: pheromones (chemical signals in natural body scents) Skin and body senses: pressure, pain, warmth, cold, kinethesis (feedback about muscles/joint position and movement, vestibular sense (maintain balance) Bottom up processing: combination and interpretation of whole , breakdown/analysis of stimuli (feature detection) Monocular (light, linear perspective, texture) & binocular cues (disparity, convergence) if these fail = illusions.