Ch 3 Lec 12

Question 0

Somatic sensory cortex

Answer 0

• Receives specific sense information from opposite side of body
• At lease one specific area for each sense
• Located in parietal lobe

Question 1

Motor cortex

Answer 1

• control movement on opposite side of body
• controls movement of over 600 voluntary muscles
• located at rear of frontal lobe

Question 2

1.Wernicke’s area – 2.Broca’s area – 3.Motor cortex

Answer 2

1. Comprehension of speech (Temporal lobe)
2. Formulates a speech response and stimulates motor cortex (Frontal Lobe)
3. Stimulates muscles that produce speech

Question 3

Association cortex

Answer 3

•Found within all lobes
•Involved in higher level processing 
 -Perception, language, thought
 -Agnosia
   •Inability to identify familiar objects
•75% of human brain

Question 4

Frontal lobes

Answer 4

•Self-awareness; planning; initiative; responsibility; emotional experience
•Prefrontal cortex
-Seat of executive functions
-Goal-setting; judgment; planning

Question 5

Left brain - Right brain
•Hemispheres
•Lateralization

Answer 5

• Hemispheres connected by corpus callosum

* Lateralization - Functions localized in one hemisphere

Question 6

Split Brain Experiments

Answer 6

• Sever corpus callosum hemispheres no longer communicate - but optic nerve remains intact
• With optic nerve
• Right visual field - processed in left hemisphere
• Left visual field - processed in right hemisphere

Question 7

Lateralization of Language

Answer 7

• 90% of people are right-handed

* 10% of people are left-handed

Question 8

Among those who are right and left handed

Answer 8

Right
•95% have left hemisphere language dominance
Left
•50% have left hemisphere language dominance
•25% have right hemisphere …
•25% have language functions in both hemispheres