split brain research evaluation

Question 1

small sample sizes…

Answer 1

• difficult for the results on hemispheric lateralization to be generalized to a wider population
• it’s a rare procedure = limited number of split-brain paitents available for investigation
• small sample sizes are unavoidable

Question 2

sperrys control group is inappropriate…

Answer 2

• control group used by Sperry had NO history of epileptic seizures
• cant be compared
• split-brain patients suffered from epilepsy = may have caused unique changes in the brain which could have influenced the results
• a more appropriate = people who had a history of epilepsy but had not had the split-brain procedure

Question 3

standardised procedure used…

Answer 3

• same task
• standardized equipment (T scope)
• checked for reliability
• same procedure has been used on a number of split-brain patients
• results on the left hemisphere being dominate for language has been found to be consistent

Question 4

split brain

Answer 4

add another one from psych 205 notes (printed)