P/S 3 Flashcards
What is a neurohypophysis?
Another name for posterior pituitary- axonal projections into hypothalamus
Which pituitary is not part of the diencephalon of the neural tube?
Anterior pituitary - not diencephalon
Not part of CNS = doesn’t derive from neural tube
What controls circadian rhythm?
-Melatonin of pineal gland and suprachiasmatic nucleus of hypothalamus
What does FSH and LH do in males and females?
FSH- males- spermatogenesis; Females- follicle maturation
LH- males- testosterone synthesis; females- ovulation
What is a glucocorticoid?
Cortisol / corticosteroid
From ACTH
Agonist
mimic action of nt
Antagoninst
Inhibit action of nt
Cephalons
Prosencephalon, Mesencephalon, Rhombencephalon
Pros- Tele, Di
Tele = cortex, basal ganglia, limbic system
Di = thalamus, hypothalamus, PP, pineal
Mes = midbrain
Rhomb = Met (pons, cerebellum), Myel (medulla)
Probability of 2 independent events
P (A and B) = P(A) x P(B)
P (A or B) [A U B] = P(A) + P(B) - P(A and B)
Signal detection theory
- can use past experiences to respond (or not) to stimuli
- sensation and perception affected by internal and external factors, including experience/expectations
Mirror neurons can be measured w/ which technology?
fMRI
Where are the inferior and superior COLLICULI?
midbrain
-sensorimotor reflexes like startle reflex
What is the reticular formation?
- connects cerebrum, cerebellum, and spinal cord
- in the hindbrain w/ cerebellum and medulla
Depression
-low serotonin and norepi
Mania
- high serotonin, norepi, dopamine
- also anxiety
Dopamine
-substance abuse, love, gambling
movement, emotion, rewards
THC = tetrahydrocannibol = cannabis
-marijuana
hallucinations AND APPETITE and LOW BP
- stimulate, depressant, and hallucinate
- increased dopamine and GABA
opiates
- less breathing
- less pain
cocaine
dopamine reuptake enzymes
-restless, agitated, impulsive
Habituation vs Adaptation
Adaptation
- purely physiological; neurons = NO CONSCIENCE
- constant stimuli frequency, varying intensities
- feeling of shirt disappearing
- forgetting the smell of home
Habituation
- stop paying attention
- accustom to loud noises
- increased freq / high freq exposure = decrease response !!!
- non-associative learning
Retrieval is an aspect of….
the LONG term memory
Can’t remember past class stuff but remember current stuff is…
synaptic pruning
If you say a past classmate name and now you remember many more classmates…
retrieval cue/priming
Near oval window
high pitch frequencies
-place theory
