Disrupting Biological Rhythms AO1

Write down all you know about the disruption of biological rhythms

Add your name and then swap papers Mark the work based on the following success criteria

Success criteria = Max 80 marks Mentions jet lag = 5 points Explains jet lag = 10 points Mentions shift work = 5 points Explains shift work = 10 points Mentions DSPS = 5 points Explains DSPS = 10 points Key terms = 5 points each (Circadian rhythm, oscillators, SCN, melatonin, phase delay, phase advance, desynchronisation)

Excellent = points Good = points Average = points Needs work = 0-14 points

Objectives The Big Question…. – Discuss the disruption of biological rhythms (8+16) AO1 topics – Jet Lag – Shift work – Delayed Sleep Phase Syndrome What do think you need to be able to do for the AO1 part of this question?

Disruption of biological rhythms So far we have found out that biological rhythms are controlled by endogenous pacemakers or oscillators. Some of these oscillators can easily be reset by exogenous zeitgebers, whereas others are more resistant. This means that sometimes, our oscillators can become desynchronised – out of time with each other.

How are our circadian rhythms disrupted? Our circadian rhythms can be subject to; – Phase advance – e.g. having to get up earlier than usual – Phase delay – e.g. going to bed later than usual Which do you think is easiest to deal with? Why?

What are the consequences of disrupting biological rhythms? Today, you will be looking at three of these: – Jet Lag – Shift Work – Delayed Sleep Phase Syndrome You will be responsible for finding out about the effects of one disruption, and teaching this to others. You need to fill in your sheets as you go along

Your groups Jet lagShift WorkDSPS OlenkaUsmanNafeesa K AminaAllisonRuquaiyah MariyahLexiFaheema ChloeTeganAlex AyeshaNafeesa THelen MelissaIkra

Challenge Fact finding: – 15 mins Info sharing: – 15 mins Think AO1! Outline the effects of the disruption Outline the mechanisms involved – i.e. interaction between EP and EZ

Your new groups OlenkaRuquaiyahFaheemahAlexHelen Nafeesa KAllisonLexiTeganIkra UsmanAminaMariyahChloeAyesha MelissaNafeesa T

Challenge Fact finding: – 15 mins Info sharing: – 15 mins Think AO1! Outline the effects of the disruption Outline the mechanisms involved – i.e. interaction between EP and EZ

In five minutes Write down all you know about the consequences of disrupting biological rhythms

Swap papers and score the answers

Success criteria = Max 80 marks Mentions jet lag = 5 points Explains jet lag = 10 points Mentions shift work = 5 points Explains shift work = 10 points Mentions DSPS = 5 points Explains DSPS = 10 points Key terms = 5 points each (Circadian rhythm, oscillators, SCN, melatonin, phase delay, phase advance, desynchronisation)

Excellent = points Good = points Average = points Needs work = 0-14 points How did you do?

Consider your progress… How do your results compare? If you made progress from last time, how did you do it? If you did not make progress from last time, what could you do differently next time?

The Big question… Discuss the disruption of biological rhythms (8+16) You have already completed the AO1 for this Today you need to gather the AO2

Disrupting biological rhythms AO2 Using your hand outs and planning grids you should work in pairs to get the AO2 for disrupting biological rhythms together. Remember to work on tying up those implications These need to be linked to the question and the point in your MRI paragraph