Skinner - advocates nurture's influence in acquiring language. 'Blank Canvasses'. Children imitate others and gain positive (praise) and negative (correction) feedback from carers. Reinforcement shapes how we communicate.
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Mehler
Showed 4 day old babies can distinguish their mother tongue from another language.
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Nativist Theory
Chomsky - Innate ability to acquire language. Propensity for language is unique and derives from specific area of the brain - the LAD. Programmes us with universal grammar
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Critical Theory Hypothesis
Lennegberg - LAD nneds to be activated by sufficient input. Need exposure to language during 'critical period' of development for it not to be impaired. Feral children - Genie- support. 'Unable to fully acquire language'
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Cognitive
Piaget - Linguistic competence developed alongside ability to understand world. Part of wider development of knowledge and understanding NOT unique and separate to cognitive development. Cannot articulate concepts you don't understand.
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Brown
Regression - Children use correct forms by regurgitating. Deductive process sets in and 'backsliding' occurs by making virtuous errors/overgeneralising rules. Over time correct forms reappear. U- shaped graph
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Mehler
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Showed 4 day old babies can distinguish their mother tongue from another language.
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