Summary PS1040 lecture 3 perceptual and motor development

PS1040 lecture 3 perceptual and motor development What is the least developed sense at birth? - Correct answer sight What is visual acuity? - Correct answer sharpness of vision What is visual acuity like at birth,6 months and 8 months? - Correct answerbirth- no definition 6- approximately adult level vision 8- more interest in tiny distant objects how does color perception change from birth? - Correct answer birth- prefer color to gray 2-4 mnths see full color spectrum how did Fantz 1961 looking chamber work? - Correct answer viewed child from above, if gaze shifted they can detect difference in stimuli `how does pattern perception change from birth? - Correct answerb irth- prefer patterns to plain 2mths- prefer more complex to simpler patterns how does visual scanning change from 1-6mths - Correct answerpreference for high contrast areas 1mth- edges 2mths- internal features (sticky fixation too) 6mths- adult level scanning who researched visual scanning? - Correct answerMaurer and Salapatek 1976 explain how a new born perceives parts and wholes - Correct answerover the first year this skill improves 4mths- see subjective contours 12mths- recognise incomplete line drawings who found that newborns track faces more than other stimuli? - Correct answerjohnson 1991 how does face perception change between 2-4 and 5-12 mths? - Correct answer2-4- discriminate individual faces prefer mother's 5-12 discriminate emotional expressions how do infants perceive depth at 1mth? - Correct answerkinetic cues, motion parallax (nearby seem to move faster) how do infants perceive depth at 3-5mths? - Correct answerbinocular cues how do infants perceive depth at 5-7mths? - Correct answerpictorial cues such as interposition and linear perspective who studied depth perception and what did they find? - Correct answerGibson and Walk 1960 (visual cliff) more crawling experience= more avoidance of cliff