1. Chapter 8.6: Nervous system

2. Cerebrum cont… Association Areas Interpret incoming data
Coordinate motor response
Somatic sensory association area
Allows you to recognize touch
Somatic motor association area
Coordinates learned movements
Ex: Picking up a glass

3. Figure 8.19

4. Cerebrum cont…
Corpus callosum
Connects the two hemispheres

5. Figure 8.20

6. Cerebrum cont… Integrative Centers
Control extremely complex motor activities
Performs complicated analytical functions
General Interpretive Area
Receives information from all sensory association areas
Role in personality
Complex visual and auditory memories

7. Figure 8.20

8. Cerebrum cont… Speech Center AKA: Broca’s Area Usually left hemisphere
Regulates breathing and vocalization for speech
Adjusted by feedback from auditory association area

9. Cerebrum cont… Prefrontal Cortex Can predict future consequences
Causes tension, frustration and anxiety
If disconnected from brain, these feelings are removed
Prefrontal lobotomy—used in early 1900s
“Cured” mental illness

11. Cerebrum cont… Aphasia Damage to general interpretive area
Can’t speak, read, understand or interpret speech
Usually due to stroke or brain tumor

13. Cerebrum cont… Dyslexia Affects comprehension and use of words
About 15% of American kids have it
Difficulty reading/writing
Intellect normal
Writing uneven and disorganized
Letters written in wrong order
Ex: Dig become Gid

14. Cerebrum cont… Hemispheric Lateralization (L/R sides) Left Hemisphere
Interpretation
Speech centers
Reading and Writing
Hand movements for right handed people
Math and logical decision making

15. Figure 8.20

16. Cerebrum cont… Right Hemisphere Senses
Identify objects by touch, smell, taste or feel
Recognizes faces
Analyze emotions

17. Figure 8.20

18. Cerebrum cont… Electroencephalogram (EEG)
Printed record of brain activity

19. Figure 8.21

20. Cerebrum cont… Memory Stored bits of information
Facts—specific bits of information
Skill—learned motor behavior
Short term memory—doesn’t last long
Can be recalled immediately
Long term memory—remains for life
Stored in cerebral cortex
Amnesia—loss of memory due to disease or trauma

21. Cerebrum cont… Basal nuclei Activities outside of conscious awareness
Ex: How to walk

22. Cerebrum cont… Seizures Temporary cerebral disorder
Abnormal involuntary movement
Change in electrical activities of the brain