PSY1022 Lecture Notes - Lecture 9: Absolute Threshold, Psychophysics, Optic Nerve
21 Feb 2022
School
Department
Course
Professor
Document Summary
Prescribed readings: chapter 3 (sensation and perception 1) pp. Psychophysics an area of research focusing on the relationship between the physical characteristics of environmental stimuli and the psychological experiences those stimuli produce. Stimulation that is too weak or brief to be perceived. Stimulation that is strong enough to be consistently perceived. The minimum amount of stimulus energy that can be detected 50 per cent of the time. A mathematical model of what determines a person"s report of a near-threshold stimulus. A law stating that the smallest detectable difference in stimulus energy is a constant fraction of the intensity of the stimulus. Questions about magnitude estimation about how our perception of stimulus intensity is related to the actual strength of the stimulus. The perception of stimulus intensity is related to the actual strength (fechner"s law) A repetitive fluctuation in the pressure of a medium, such as air. The difference between the peak and the baseline of a waveform.
