Please enable JavaScript.

Coggle requires JavaScript to display documents.

Sleep - Coggle Diagram

- - - - Phylogeny: sleep occurs in almost all organisms
      - Ontogeny: sleep changes and develops throughout the life span
      - Regulation: sleep is influenced by external factors
      - Primacy: proposed function of sleep is specific to sleep
- - - - Chronotypes: phase marker of individual differences in circadian rhythms - some people are biologically designed to sleep earlier and wake earlier & vise versa.
      - Michael Breus: 4 chronotypes - lion (early bird - 6am-9/10pm) , bear (solar sleeper - 7am - 11pm), wolf (night owl - 8/9am - past midnight) and dolphin (light sleeper - inconsistent sleepers who are easily woken, often alert mid morning - sporadic bursts of energy).
      - Chronotypes are a theoretical construct, no genes or categories identified. Evidence comes from wider sleep research implications such as Siffre. Evening types associated with mood disorders: depression (Hidalgo et al, 2009), SAD (Johansson et al 2003), bipolar (Giglio et al, 2010). Evening types obtain lower grades - effects of chronotypes on academics is moderated by time of day testing (Zerbini & Merrow, 2017).
- - - - Found in sleep labs
      - Series of devices which record brain waves, blood oxygen levels, HR, breathing and limb movement.
      - Very accurate and reliable
      - EEG, EOG/ECG, oronasal air flow, chin EMG, position sensor, pulse oximetry, thoracic & abdominal movements.
    - - wearable device - can record sleep at home
      - Records muscle movement for various components of sleep e.g. atonia in REM sleep
      - Practical measure of natural sleep
      - Blood et al (1997) - superficial measure, what about peaceful wakefulness?