PSYC 2450 Lecture Notes - Language Acquisition, Language Acquisition Device, Generation Gap
9 Oct 2012
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Chapter 6: early cognitive foundations: sensation, perception & learning. Sensation process by which sensory receptor neurons detect info. and transmit it to the brain. Nature vs. nurture: empiricists infants must learn to interpret sensations (nurture, nativists many basic perceptual abilities are innate (nature) Enrichment vs. differentiation: enrichment theory (piaget) we must add to sensory stimulation by using, stored knowledge in order to perceive a meaningful world. Differentiation theory (gibson: our senses provide all we need to interpret experiences, perception involves detecting distinctive features/cues in the sensory stimulation. Ways which 2+ objects can differ (size, coloiur, shape) Methods that use behavioural and physiological responses to study sensation and perception in infants: (1) preference method: presenting 2+ stimuli and observing which stimulus the infant prefers. Stimulus presented repeatedly until infant s response habituates. Discrimination ability is tested by presenting a second stimulus and observing response. Observe changes in activity for different stimuli.
