Hemispheres Exam Questions with
Complete Solutions4
Cerebral Asymmetry - ANSWERS-It has been realized for many years that the left and right
hemispheres of the human brain are not functionally equivalent, even though they have nearly
identical structures
By the 1860's observations by Dax and Broca and others had pointed out the involvement of the
left hemisphere in language for right handers.
Cerebral Asymmetry Cont. - ANSWERS-In other words, one hemisphere was dominant for both
speech and skilled movement
As early as 1874, Hughlings Jackson argued that the right hemisphere may play a special role in
"visual ideation".
It was only after World War II that careful studies of well-lateralized lesions revealed the
importance of the posterior right hemisphere in spatial function.
Complementary Specialization - ANSWERS-Each hemisphere serves distinct functions that
complement the other
The analysis of hemispheric differences was advanced in the 1960's by studies of split-brain
patients - where the two hemispheres were separated by surgical section of the commissures
connecting them
Left hemisphere - ANSWERS-Specialized role in language
Primary Auditory Cortex - ANSWERS-Larger on the right than on the left
Secondary Auditory Cortex - ANSWERS-Larger on the left than on the right
Complete Solutions4
Cerebral Asymmetry - ANSWERS-It has been realized for many years that the left and right
hemispheres of the human brain are not functionally equivalent, even though they have nearly
identical structures
By the 1860's observations by Dax and Broca and others had pointed out the involvement of the
left hemisphere in language for right handers.
Cerebral Asymmetry Cont. - ANSWERS-In other words, one hemisphere was dominant for both
speech and skilled movement
As early as 1874, Hughlings Jackson argued that the right hemisphere may play a special role in
"visual ideation".
It was only after World War II that careful studies of well-lateralized lesions revealed the
importance of the posterior right hemisphere in spatial function.
Complementary Specialization - ANSWERS-Each hemisphere serves distinct functions that
complement the other
The analysis of hemispheric differences was advanced in the 1960's by studies of split-brain
patients - where the two hemispheres were separated by surgical section of the commissures
connecting them
Left hemisphere - ANSWERS-Specialized role in language
Primary Auditory Cortex - ANSWERS-Larger on the right than on the left
Secondary Auditory Cortex - ANSWERS-Larger on the left than on the right
