spent 61 days in cave isolated from exogenous cues, natural circadian sleep-wake cycle kept to around 24 hours
1 of 25
Aschoff and Wever
ppt in WW2 bunker, absence of social/time cues, sleep-wake cycle of 24-25 hours remained, free running cycle
2 of 25
Folkard et al.
Learning abilities of 12 - 13 year olds, superior recall when core body temperature was highest at 3pm than lower at 9am
3 of 25
Czeisler
alteration of circadian rhythms using dim light, 22 to 28 hours, issues with methodology of Siffre + Aschoff, were exposed to dim artificial light
4 of 25
Hord and Thompson
No correllation between body temp and cognitive performance, said that increased temperature may lead to physiological arousal, which leads to improved cognition
5 of 25
Dement and Kleitman
Dream Sleep: woke ppt when brainwaves indicated REM sleep, likely to report dreaming, however, dreaming was reported outside of REM sleep
6 of 25
Russell
Exogenous cues in menstrual cycle, rubbed sweat from one group of women onto top lips of another group, menstrual cycles synchronised, infradian rhythm altered by pheromones
7 of 25
Campbell and Murphy
exogenous ZG, shining light on backs of knees, can shift circadian rhythms, light effects cryptochrome protein, resets SCN
8 of 25
Morgan
Hamsters bred with mutant SCN's to have 20 hour rhythms, transplant scn's into other hamsters, showed mutant rhythms
9 of 25
DeCoursey
chipmunks, lesioned SCN with no CR, more lesioned chipmunks were killed by weasels, SCN has adaptive advantage, predator avoidance
10 of 25
Boivin
artificial light, very bright light has significant effect on resetting biological clocks
11 of 25
Recht
Jet Lag: Baseball teams in US, performed better when flying from east to west (phase advance)
12 of 25
Bambra
forward rotating shifts = less damaging to health, follow logical order of day
13 of 25
Petrie
Melatonin, used as 'cure' for shift and jet lag, effective for naturally inducing sleep just before bedtime
14 of 25
Tynjala
Cross cultural study, adolescents from korea and iran = avg 6.5 hours of sleep, vastly different to european
15 of 25
Siegel
REM sleep allows break in neurotransmitter secretion, neurones can regain their sensitivity.
16 of 25
Rechtschaffen
rats deprived of sleep for 33 days on rotating disc, died after, could've been from exhaustion, not sleep deprivation
17 of 25
Peter Tripp
sleep deprived for 201 hours, paranoia and hallucinations, and sleeping branwaves, but no long term damage after 24h sleep
18 of 25
Zepelin and Rechtschaffen
smaller animals = slept more due to higher metabolic rates
19 of 25
Capellini
trade off between foraging requirements and sleep, low energy diets or high metabolic rate = less sleep, -ve correllation between body size and sleep
20 of 25
Allison and Cicchetti
animals with higher predation risk = slept less, exceptions = rabbits. Larger animals = less NREM sleep, shows NREM sleep is important for energy conservation
21 of 25
Savard
fewer immune cells in insomniacs, insomniacs mor vulnerable to physical illness
22 of 25
Spielman and Glovinsky
3P model of insomnia, predisposing, precipitating and perpetuating
23 of 25
Oliviero
children, have not properly developed systems to inhibit motor activity during SWS, found immaturity in these neural circuits in sleepwalking adults
24 of 25
Lecendreux
50% concordance rate for MZ twins for sleepwalking, also identified a gene critical for sleepwalking
25 of 25
Other cards in this set
Card 2
Front
ppt in WW2 bunker, absence of social/time cues, sleep-wake cycle of 24-25 hours remained, free running cycle
Back
Aschoff and Wever
Card 3
Front
Learning abilities of 12 - 13 year olds, superior recall when core body temperature was highest at 3pm than lower at 9am
Back
Card 4
Front
alteration of circadian rhythms using dim light, 22 to 28 hours, issues with methodology of Siffre + Aschoff, were exposed to dim artificial light
Back
Card 5
Front
No correllation between body temp and cognitive performance, said that increased temperature may lead to physiological arousal, which leads to improved cognition
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