Biological Rhythms (A Level Only) (AQA A-Level Psychology): Flashcards
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Practise the cards
10 cards from this deck
Endogenous pacemakers
Endogenous pacemakers
Internal biological clocks controlling bodily rhythms
Exogenous zeitgebers
Exogenous zeitgebers
External factors synchronising internal clocks via entrainment
SCN stands for
SCN stands for
Suprachiasmatic nucleus
SCN function
SCN function
Primary internal timekeeper/master clock for sleep/wake cycle
Primary/most powerful zeitgeber
Primary/most powerful zeitgeber
Light
Melatonin role
Melatonin role
Hormone promoting sleepiness, produced in darkness
Infant entrainment age (weeks)
Infant entrainment age (weeks)
Around 16 weeks
Natural cycle w/o external cues
Natural cycle w/o external cues
24.5 or 25 hours
Phase advance definition
Phase advance definition
Getting up/bed earlier (west to east travel)
Phase delay definition
Phase delay definition
Getting up/bed later (east to west travel)