Essay
PLAN Discuss research into ultradian rhythms
- Course
- Institution
Plan for a full mark biopsychology essay.
[Show more]
Seller
Follow
scienceandpsych
Reviews received
Content preview
Discuss research into ultradian rhythms. (16 marks)Outline:
Biological rhythm, less than 24 hours, e.g. sleep cycle (Dement and Kleitman)
90 minute cycle, four NREM stages and one REM stage
Repeated throughout night
EEGs, first two stages (alpha and theta waves) easily woken from
Muscle activity, breathing, blood flow reduced, heartbeat irregular
Stages three and four (delta waves) deeper sleep difficult to wake, sleep inertia
REM: body paralysed yet eye movement fast and brain activity resembles awake brain
Heart and breathing rate increase
1, 2, 3, 4, 3, 2, REM
Evaluation:
P: increased understanding of dreaming
E: Dement and Kleitman, 90% awoken in REM recall dream, 7% in NREM
A: strong correlation, vivid dreams and brain activity
L: increased understanding of memory, e.g. Dement proposes theory of dynamic stabilisation,
firing of neurons in REM essential for memory consolidation
P: practical applications for workers and students
E: Kleitman 90 minute BRAC, alternating periods of fatigue and alertness
E: Ericsson, best violinists three practices a day, no longer than 90 minutes
A: BRAC increases worker productivity, student learning, encouraging frequent breaks, maximise
alertness
C: many professions impose much longer working periods between breaks, rhythms not fixed,
overridden
L: implies social cues zeitgebers for ultradian, incomplete understanding
P: cannot explain individual differences
E: some nap during day, others cannot
E: Tucker, large differences in sleep patterns and responses to 36 hour sleep deprivation
L: another factors, e.g. genetic predisposition, influencing sleep cycle
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller scienceandpsych. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.86. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now