Lesson 7: Sleep/wake cycles across the lifespan

Saturday, 28 January 2012

Lesson 6: Sleep DeprivationEXAM QUESTION

How can task performance be impaired by sleep

deprivation? (2 marks)

Saturday, 28 January 2012

Model Response:

Performance on complex, intellectual tasks is not impaired, whereas an individual’s ability to follow simple routines, as well as vigilance, attentiveness and mood, can be affected. Low level boring tasks are the most

likely to be affected, as deprivation may affect motivation rather than ability.

Saturday, 28 January 2012

Lesson 7: Sleep/wake cycle across the lifespan

Objectives:*Identify the shift in sleep-wake cycles during adolescence*Describe the delayed onset of sleep*Describe the need for sleep 

Saturday, 28 January 2012

http://www.youtube.com/watch?v=gMS0M_KcsOE

clip embedded on wiki under this summary:0)

Saturday, 28 January 2012

Sleep pattern shifts over the lifespan

~Most people your age get about 8 hours~Research shows that adolescents need 9 or 10 hours

~Many people report not being able to get to sleep quickly, not getting enough sleep and difficulty getting

up in the morning~Biological factors – rhythms – regulate when we sleep

and wake through the release of hormones that make us tired

~Our sleep-wake cycle is called a circadian rhythm – this means about a day

Saturday, 28 January 2012

So why are you tired?During adolescence your sleep-wake cycle is shifted biologically (through the release of hormones) to make you require about 2

hours more sleep!But our school and work day does not really allow for this! (that’s

shit)As we consistently get less than optimum sleep we create a sleep

debt – this compounds like a fine you haven't payed – it gets bigger and bigger

As a result you try to catch up on the weekend! But then you go to bed later and compound the problem!

Research shows that less than 8 hours has a negative impact on cognitive function

Saturday, 28 January 2012