Visual information is presented to only the left hemisphere of a human split-brain patient by getting the patient to fixate on the center of the display screen and then
A) presenting the information on the side of the screen to the patient's right.
B) flashing the information for 0.1 second on the side of the screen to the patient's right.
C) flashing the information for 0.1 second on the side of the screen to the patient's left.
D) presenting the information to only the left eye for 0.1 second.
E) either B or D
Question 2
The decision to treat terminal human epileptics with commissurotomy was made on the basis of previous comparative studies that had shown that
A) epileptic discharges spread from one hemisphere to the other via the corpus callosum.
B) commissurotomy has little disruptive effect on behavior outside contrived laboratory situations.
C) commissurotomy eliminates seizure discharges.
D) all of the above
E) both A and B
Sites of mtDNA mutations in certain human diseases
Brain
Aquamatic pad and heating unit provide dry heat treatment to a patient’s arm.
Chorionic villus sampling (left) and amniocentesis (right)
Partial map of disease genes on human chromosome 21
Cladogram showing genetic distances and relationships between human populations