Review Videos

Question 1

Representative Bias

Question 2

Availability Bias

Question 3

Hindsight Bias

Question 4

Regret Bias

Question 5

Confirmation Bias

Question 6

What is the Central Nervous System? (CNS)

Answer 6

Brain
- hindbrain (rhombencephalon)
- mid brain (mesencephalon)
- forebrain (prosenncephalon)

Spine

Question 7

Hindbrain

Answer 7

Myelecencephalon “marrow brain”
- White appearance -> fattie tissue
- Medulla oblongata
Regulation of vital funcations (heart rate, breathing)
Nutritient availability, mineral content, temporature, etc.

Metencephalon “ after brain”
- Cerebellum -> “litle brain after the big brain”
“Little brain”
- Balance, equilibruim, coordinated/practiced movements
(Example with typing the password, that you have memorized. )
- Coordinates and smoothes movements
- Vunerable to alcohol -> movements become impaired

4th ventricle

Pons (bridge)
- Sleep and arousal
- Relay between cortex and cerebellium
- Connects the two halves of the cerebellum

Question 8

Midbrain

Answer 8

SENSORY INFORMATION FOR MOVEMENT

Tectum
- Superior colliculus (vision)
– Visual information, visual pathway
– Can mofify movement pattern even without you being aware of it -> uses the thylamus to do this
– Example of blindsight -> recieving visual input even though someone might not be able to see anything. Example of moving out of the way of a paper, even without seeing it.
- Inferior colliculus (hearing)
– Audiotory system

Tegmentum
- Reticular formtion (arousal, movement, reflexes)
- Periaqueductal grey species-specific behavior, pain)
- Red nucleus (descending motor)
- Substantia nigra (movement; basal ganglia)

Cerebral aqueduct
- (adeduct of silvius)
- Connects 3rd and 4th ventricles

Question 9

Forebrain

Answer 9

Diecephalon
“Interbrain”
Thalamus
Massa intermedia - connects the two halves
LGN - vision
MGN - hearing
VA/L - motor/striatum
VLN - motor/cerebellum
Hypothalamus
“Master of the master gland”
Similar to thalamus; discreet nuclei that have different functions
Hormones!
Pituitary Gland
Anterior pituitary
Nerons in hypothalamus simulate secretory cells by producing “releasing” hormones
Posterior pituitary
Neurons in hypothalamus send axons down and directly release neuromodulators and hormones
Pineal Gland
3rd Ventricle

Question 10

Frontal Lobe

Answer 10

Most developed in humans
Largest in the 4 lobes
Motor cortex
Along the surface of the motor cortex, different parts of the body are matched to it
Language production
Memory and higher cognitive function