Biopsychology: biological rhythms -ultradian rhythms

Question 1

what is a biological rhythm?

Answer 1

.a periodic activity of the body that is governed by: internal biological clocks (endogenous pacemakers) and external changes (exogenous zeitgebers)

Question 2

what is a ultradian rhythm?

Answer 2

.biological rhythms that lasts less than 24 hours and occurs more than once a day

Question 3

what is an example of a ultradian rhythm?

Answer 3

.90 minute sleep stages

Question 4

what is the 90 minute sleep stage?

Answer 4

.the idea that sleep consist of repeating pattens of REM sleep and NREM (non REM) sleep

Question 5

what does REM stand for?

Answer 5

.rapid eye movement

Question 6

how many stages are there in the 90 minute sleep stage?

Answer 6

5

Question 7

what are the 5 stages of the 90 minute sleep stage?

Answer 7

.stage 1 and 2 -light sleep
.stage 3 and 4 -deep sleep
.stage 5 - REM sleep

Question 8

what is stage 1 and 2 -light sleep?

Answer 8

.where the heart rate is slow and body temperature drops

Question 9

what is stage 3 and 4 -deep sleep?

Answer 9

.where brain waves slow down (slow wave sleep) but increase in amplitude
.when the body starts to recover

Question 10

what is stage 5 -REM sleep?

Answer 10

.rapid eye movement (dreaming)

Question 11

who conducted the evidence to support the idea of the 90 minute sleep stage?

Answer 11

.dement and kleitman

Question 12

what did dement and kleitment do?

Answer 12

.measured sleep with EEG’s
.woke participants at different points

Question 13

what did dement and kleitman find?

Answer 13

.found that participants woken during REM sleep has an 89% chance of remembering their dream compared to only 7% women during non-REM sleep

Question 14

what is a negative to this evidence in support of the 90 minute sleep stage?

Answer 14

.sleep cycle varies throughout life:
-50% of REM sleep and 50% slow wave sleep is usually the structure of an infant

Question 15

what is BRAC?

Answer 15

.basic rest activity cyle

Question 16

what is meant by BRAC?

Answer 16

.the idea that the 90 minute sleep stage found in sleep continues during the day
.when we are awake we move from alertness to physiological fatigue

Question 17

what does it mean when we move from alertness to physiological fatigue?

Answer 17

.means that we can focus for 90 minutes and then we begin to loose concentration and gain hunger and fatigue

Question 18

who conducted research support for the idea of BRAC?

Answer 18

.ericcson

Question 19

what did ericcson do?

Answer 19

.observed high performing individuals and noticed consistent 90 minute cycle patterns

Question 20

what did ericcson find?

Answer 20

.found that the best performers followed the 90 minute practice schedule