Mind and behaviour Chapter 5 0.0 / 5 ? PsychologySensation and PerceptionUniversityAll boards Created by: MaddyCreated on: 22-11-17 17:34 What is Sensation? Sense Organs detecting environmental stimuli as nerve impulses that are sent to the brain 1 of 14 What is Perception? Organizing stimuli output to make sense of it 2 of 14 What is Psychophysics? The study of the relation between physical stimuli and sensory capabilities and how they relate to each other 3 of 14 What is the absolute limit of sensitivity? The faintest a stimuli can be and we can still detect it 4 of 14 What is differences between stimuli? How different things have to be for us to notice 5 of 14 What is the absolute threshold? The lowest intensity something can be detected 50% of the time 6 of 14 What is the decision criterion? How certain someone is of a stimulus before they say they detect it 7 of 14 What is signal detection theory? The theory that people are more likely to detect stimuli most important to them 8 of 14 What is Sublimnal Stimuli? A stimulus that is so weak that while it is detected by the senses, it cannot be detected by us consciously 9 of 14 What is the difference threshold? the smallest difference between stimuli that people can detect 50% of the time 10 of 14 What is sensory adaptation? Diminishing sensitivity to an unchanging stimulus 11 of 14 What is transduction? Characteristics of a stimulus broken into nerve impulses 12 of 14 What is the role of the Pinnae? Outside of the ear, job to collect sounds and localise where they come from 13 of 14 What is the role of the ossicles? impedence matching - making sure that the air has the same resistance to sound waves as the cochlea 14 of 14
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