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GRE Psychology: Experimental/natural Science Biology
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GRE Psychology: Experimental/natural Science Biology
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25 Questions

1. Occurs when an external stimulation - regardless of intensity - will not trigger a new action potential

2. Extensive research in dreams - said BAH to Freud; proposed the activation-synthesis hypothesis (dreams are nothing more than the product of random electrical impulses)

3. A peptide - also known as OREXIN - produced by neurons whose cell bodies are located in the hypothalamus; their destruction causes narcolepsy

4. Related to plasticity - the term Lashley used to describe different parts of the cortex being interchangeable in their roles in learning

5. Is a peptide neurotransmitter and a natural painkiller and antianxiety

6. Includes the thalamus and hypothalamus; region of forebrain surrounding the 3rd ventricle

7. A 90-minute activity cycle occurs throughout the day as well as throughout sleep (in humans) waxing and waning alertness controlled by a biological clock in the caudal brainstem that also controls cycles of REM and slow-wave sleep

8. Pleasure center of the brain; discovered by Olds & Milner

9. Regulates body temperature

10. Occurs during the deepest stages of slow-wave sleep; regular - synchronous electrical activity of less than 4 Hz

11. Moving forward

12. Found in the hypothalamus - function to maintain the water balance in the body

13. Attaches to a binding site on receptor and interferes with the action of the receptor without affecting the binding site for the principal ligand (noncompetitive binding)

14. Trochlear Nerve - moves eye

15. Found that developmental changes occurring in puberty make the brain more susceptible to the psychotic effects of NDMA antagonist and therefore also related to the emergence of symptoms of schizophrenia

16. Thymoleptics = relieves mania of bipolar disorder (lithium carbonate - valproic acid - carbamazepine)

17. Expression of traits

18. Facial Nerve - moves face and salivates

19. Occur in amacrine - bipolar and horizontal cells; govern/encompass the opponent-process level of color vision

20. Activates one of 5 types of receptors in the CNS - cognition - motor activity - reward - muscle tone - sleep - mood - attention - learning -higher level effects of dopamine = D2

21. Some brain communications are with the same side of the body

22. When a neuron reaches its excitation threshold - the neuron will produce an action potential of FIXED amplitude regardless of the magnitude of the stimulation

23. Serotonin = 5-HT -regulation of mood - anxiety - aggression - sleep - appetite - sexuality -rostral and caudal raphe nuclei

24. Bunch of dopaminergic neurons starting in the substantia nigra and ending in the neostriatum

25. Self-dissolving

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