week 2 (test 1) Flashcards Preview

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Flashcards in week 2 (test 1) Deck (10):
1

parameters that reflect sleep intensity

- sleepiness increases, and latency to sleep decrease, with progression of wakefulness
- the relationship between sleep parameters and the duration of prior waking is not linear
- arousal thresholds for acoustic or tactile stimulus are higher during sws than during s2

2

phylogeny

relatedness or difference across organisms

3

frequency

how many times a wave passes through the line in a secon

4

waso

wake after sleep onset

5

model systems for the study of sleep

human -> rodent -> zebra fish -> fly -> worm

6

why is it easier to study smaller animals

- fewer genes
- easier to alter gene expression
- simpler nervous systems

7

characters of drosphilia (fly) sleep

- sex differences
- sleep changes with age
- caffeine increases wakefulness
- immune challenge alters sleep
- sleep rebound after sleep deprivation

8

characteristics of sleep

- body posture
- eye state
- location or site
- timing

9

what does delta power reflect in NREM sleep

sleep intensity

10

features of sleep that change with age

- timing
- efficiency