PSY100H1 Lecture Notes - Two-Streams Hypothesis, Contrast Effect, Additive Color
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PSY100H1 Full Course Notes
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Document Summary
Sensation- involves detection of external stimuli, responses to those stimuli, transmission of responses to the brain. Sensation about going to world to the brain. Transduction- process by which sensory receptors pass impulses to connecting neurons when they receive stimulation. Stimuli need to be translated into chemical or electrical signals to be understood. Perception- involves the processing, organization, and interpretation of sensory signals in the brain, which results in an internal representation of the stimuli- and conscious experience of it. Absolute threshold- the minimum intensity of stimulation that must occur before you experience a sensation. Difference threshold- just noticeable difference between two stimuli (minimum amount of change) Signal detection theory- determining whether you notice a faint stimulus or not requires you to make a judgement based on ambiguous information. Response bias- person"s tendency to report detecting a signal in an ambiguous trial. Sensory adaptation- if stimulus is constant, humans stop responding to it (decreasing sensitivity to constant stimuli)
