Perceptual Development

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What is inter sensory integration and cross modal transfer?
Integrating information from several senses at once AND perceiving sensory information via one modality and transferring it to another modality
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What methods are used to investigate auditory perception?
Non-nutritive sucking and Brain responses (ERP'S)
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What have such methods found?
Babies can distinguish between pitch contours and segregate sounds into patterns, NNS shows babies can distinguish between native and foriegn language and prefer real speech sounds over muddled ones.
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What methods are used to assess visual acuity?
Preferential Looking
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What have such methods found?
1 month old = look at perimeter of shapes 2 month old = look at perimeters and interiors of shapes. - SALAPATEK
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When is visual acuity fully developed?
By 1 year
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What type of contrasts do babies prefer?
HIGH contrast! Babies prefer large squared checkerboards.
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What are the two competing hypotheses called?
Sensory hypothesis and structural hypothesis
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What is conlern and conspec?
Conlearn = learn about faces by directing our attention towards them. Conspec = we are born with a visual perceptual device which helps us understand faces
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What did Fantz develop and find?
Preferential Looking Paradigm - infants up to 6 months prefer scrambled or real faces over blank ones
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Who found that babies DO prefer schematic faces over both scrambled and blank?
Johnson and Morton
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What did Bushnell find?
Preferential Looking Paradigm, mother vs. stranger. Baby looked at mother 63 percent of the time. When hair covered with shower cap, baby could not identify her.
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Fagot? What type of study was this?
Habituation study! 80 infants, 20 each of 5,7,9 and 12 months old. Shown stimuli of one sex repeatedly until they had became familiar with it (habituated), then shown a pair of stimuli, one same sex and one new sex (dishabituation), looked at new sex
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Conclusions from Fagot?
Categorical discrimination of faces of either sex is within the abilities of infants 1 year or younger.
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What methods are used to investigate auditory perception?

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Non-nutritive sucking and Brain responses (ERP'S)

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What have such methods found?

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Card 4

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What methods are used to assess visual acuity?

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Card 5

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What have such methods found?

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