Studies for Brain Lateralization

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Early lesion studies in language deficits
Dax 1836
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PT greater in musicians w perfect pitch
Shlaug, 1995. Geshwind first noticed it was assymetrical
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Child Hemispherectoy
Pulsifer, 2004 - Rassmussed syndrome at 7.2 years. Basser 1962 - 35 cases, sensorimotor function preserved
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Adult Hemispherectomy
McClelland, 2007. poor quality of life. Result from neoplastic disease.
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Feeling objects hidden from veiw in split brain
Gazzaniga, 1962. can pick it out with right hand, but the left hemisphere can't name object.
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Split brain looking at chimeric figures
Levy, 1972
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Interpreter theory of unified behaviour
Gazzaniga, 1996. the left hemisphere is the press secretary of the brain, post hoc explanations of why
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Left handers have different brain lateralization
Rasmussed and milner, 1977. Left handers more likely to be RH dominant or bilateral
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Doppler Ultra Sonography for left and right handers
Knecht, 2000. 7% of right handers have RH domiance
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Patients lost prosody in RH language damage
Ross 1979
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Animals with lateralised brains have cognitive advantages, better and quicker processing
Valloritgara, 1999
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Spatial Frequency Hypothesis
Sergeant, 1983
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Mode of processing - local vs global
Halpern, 2005
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Broca
1864
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Right HS lesions did better when asked to use mental imagery
Jones 1974
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Cessation of mental imagery following damage
Neilson, 1955. 7 patients, 4 left 3 right. Zangwill, 1951. 3 patients, 2 left one right.
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Left hemispehre can report dreams
Greenwood, 1977
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Mental imagery when waking in split brain
Left hemisphere can create imagery - Le Doux, 1978
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Card 2

Front

PT greater in musicians w perfect pitch

Back

Shlaug, 1995. Geshwind first noticed it was assymetrical

Card 3

Front

Child Hemispherectoy

Back

Preview of the front of card 3

Card 4

Front

Adult Hemispherectomy

Back

Preview of the front of card 4

Card 5

Front

Feeling objects hidden from veiw in split brain

Back

Preview of the front of card 5
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