1. The Amazing Brain Quiz What is the difference in brain mass b/t a 500 pound Gorilla and 150 human? Human 3lbs. Gorilla 1.5lbs. We only use 20% of our brains? False How many watts of electricity does our brain use? 5 watts Why do some people get headaches if they don’t eat? Your brain needs glucose.

2. Forebrain MidBrain HindBrain

3. Cross section of brain

4. Hindbrain Medulla Oblongata – Blood Circulation, Breathing, Reflexes (Sneezing, Coughing, Salivating, Vomit and Bathroom) Cerebellum – Little Brain – Coordination of Movement. Pons – Sleep and arousal

5. MidBrain Reticular Formation (RAS) Sleep, arousal and dreams

6. Forebrain Thalamus – All sensory info (except smell) The relay station Hypothalamus – Autonomic Nervous system, (4 F’s) Fighting, Fleeing, Feeding, and Reproduction - Hunger and Temperature. Corpus Callosum - Bridge between the Hemispheres Limbic System (Edge) Border between cerebral cortex and deeper areas.

7. Limbic System (Emotion and Memory) Hippocampus – Helps form new memories –E–Ex. Case Study HM Amygdala 2:05 – fear and anger –E–Ex. Rhesus Monkey –E–Ex. Sociopath

8. The Cerebral Cortex

9. Hemispheres Each Cerebral hemisphere controls the opposite side Examples: Writing name. Plasticity of the Brain? Phantom limbs?

11. Lobes of the Brain The Cerebrum is divided into four lobes Parietal Lobe: Contain the primary somatosensory cortex (responsible for sensation) Ex. Phantom Limb syndromePhantom Limb syndrome Also some visual functions Visual neglect

12. Occipital Lobe Contains the primary visual cortex, responsible for vision. –Active when visualizing as well as seeing –“Seeing Stars Phenomenon” Example: Blindsight

13. Temporal Lobe Contains primary auditory cortex, responsible for hearing –“Song stuck in my head phenomenon” Also responsible for speech and language (left hemisphere only) Wernicke’s area: language comprehensionWernicke’s area Broca’s area: language productionarea Aphasia: Damage to language centers

14. Frontal Lobe Primary motor cortex, responsible for motion Prefrontal Cortex, responsible for: –Working memory –Planning –Relational reasoning –Impulse control (Art) Case Study Phineas Gage (1848)

15. b Case Study Phineas Gage (1848)