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Lecture 5

JLP315 - Lecture 5.doc

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University of Toronto St. George
Ana Perez- Leroux

thJLP315Lecture 5February 8 2012VideoBabies are taking statistics on the language that they hearbabies are sensitive to statistics and the stats of languages are differentthe baby absorb the stats and this changes the babies brainsAdults are governed by the representations in memory that are in the brain68 months the babies are equal2 months later they are oppositethey had to run a control groupbabies will take statistics from any language they are exposed toanother group of babies exposed to television and to just audioit takes a human being for babies to take their statisticsthe machine sees the babies brainas the baby hears a word in her language a certain area of the brain lights upPhonological Development Infant perception methods HAS High Amplitude Sucking1960s and 1970swhen babies are excited theyre more prone to suck faster on their pacifierwe can see what kind of things children are detectingchildren get bored if the thing is repeatedthey get excited when its something stimulatingshows babies lose interest when something repeated suck slowerinterest renewed when new sound is played suck fasterthe stimulus is presented graduallythen they see if children can distinguish between themInfant Perception Methods Head Turntrain the baby to turn their head when they hear a change in soundInitially infants can discriminate all the sound contrasts available to themexceeding beyond those of their target language4 week olds can discriminate a i uthey are important because they are the extremes of the vowels we can producemost languages have them in their inventorythey can discriminate btwn voiced and voiceless consonants ex p vs bp154155pictures of charts154whether they identify the sound as a p or a b there is a boundary region where the lines cross155interest goes up between 2040 then starts to decline 6080Evolution babies can distinguish btwn human and nonhuman speech soundsevolution of the mammalian ear
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