neuroscience & learning year 1 semester 2 lead lecture week 10 chris jenkins 1
TRANSCRIPT
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Neuroscience & Learning
Year 1 Semester 2Lead Lecture
Week 10Chris Jenkins
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WELL DONE TO YOU ALL!
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SEN Personalised Learning Taskhttp://education.exeter.ac.uk/projects.php?id=159#task
http://education.exeter.ac.uk/projects.php?id=165
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The Brain & Learning:
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Key Question:
Do you think that knowledge about how the brain works is important in designing approaches to learning / education?
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Facts about your brain:
• An adult human brain is about the size of a grapefruit and weighs about1300-1400g.
• It is 78% water, 10% fat and 8% protein.
• It weighs about 2% of your body weight but uses about 20% of your energy and your oxygen.
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Neo-cortex Mammalian brain
Reptilian brain
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Neuroscience
• Education is about enhancing learning
• Neuroscience aims to provide understanding of the mental processes involved in learning
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Functional Magnetic Resonance Imaging (fMRI):
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FMRI is an MRI procedure that measures brain activity by detecting associated changes in blood flow.
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Electroencephalography (EEG)
EEG is the recording of electrical activity along the scalp.
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Neuromyths
A neuromyth is…
“a misconception generated by a misunderstanding, a misreading or a misquoting of facts scientifically established…”
(OECD, 2002, p111)
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Neuromyths
Neuromytholgies of quantity:“If we can get more of the brain to ‘light up’ then
learning will improve ...”
Neuromytholgies of quality:“If we concentrate teaching on the ‘lit-up’ brain
areas then learning will improve ...”
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So what do we know?
Brain Care:•Omega-3 (fish oils)
•Caffeine
•Sleep
•Water14
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Omega-3 (fish oils)• Good regular diet probably most important nutritional issue
influencing educational performance and achievement• Proven importance / impact of having breakfast• NO published evidence to demonstrate Omega-3
supplements enhance school performance in the general population of children
• Growing evidence for reduced risk of dementia in later life and fish consumption in pregnancy may relate to infant IQ
• Such oils do work in certain context for children with ADHD – findings as yet unclear
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Caffeine• A 500ml bottle of cola has same amount of
caffeine as a cup of coffee• Children commonly experience caffeine
withdrawal• Withdrawal - children aged 9-10 drinking no
more than 2 cans a day demonstrate reduced alertness compared with non-users
• Caffeine raises alertness only to baseline levels and only temporarily – implications?
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Sleep• Sleep is an important part of learning• Helps us to ‘lay down’ and consolidate
memories so we can draw on them later• Sleeping brain shown to reproduce neural
activity characterising preceding state of wakefulness
• Helps us prepare to learn more and use what we know to generate insights (‘sleeping on it’)
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Water
• Very few studies investigating effects of dehydration on children
• Confirm deleterious effect of even mild dehydration on ability to think
• BUT recent adult study shows drinking water when NOT thirsty has the same effect
• Encourage children to drink WHEN THIRSTY• Exercise & exceptionally hot weather: children’s
monitoring systems are less reliable – need encouraging
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Developmental Disorders
• Dyslexia / Dyscalculia
• ADHD
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Dyslexia / Dyscalculia
• Brain imaging techniques show differences in brain function of those with these conditions and those without
• Imaging techniques can potentially be used to identify: – those at risk– the effectiveness of interventions designed to help
• Demonstrates brain’s plasticity – education can critically affect how the brain operates
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ADHD – Attention Deficit/Hyperactivity Disorder
• Research suggests:– Some children are much more impulsive, restless and
disorganised than others– Strongest influence is genes that affect brain chemistry
and neuropsychological functioning– Not a moral failing – children can’t choose to have ADHD– Some ways of teaching & managing classrooms suit these
children better - schools need to be aware– At the extreme – some receive a medical diagnosis and
medication (Ritalin)
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Brain-Based Learning?
• Brain Gym
• Learning Styles
• Multiple Intelligences
• Right Brain / Left Brain
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AA BB CC DD EE FF GG
ll tt rr rr tt tt ll
HH II JJ KK LL MM NN
ll rr tt tt rr ll ll
OO PP QQ RR SS TT UU
tt tt ll rr tt rr rr
VV WW XX YY ZZ
tt ll ll ll rr23
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Brain Gym
‘ The pseudo-scientific terms that are used to explain how this works, let alone the concepts they express, are unrecognisable within the domains of neuroscience.’
Teaching & Learning Research Programme (2005) Neuroscience & Education
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Ben Goldacre (author of Bad Science)The Guardian,Saturday February 16 2008
• http://www.badscience.net/2008/02/banging-your-head-repeatedly-against-the-brick-wall-of-teachers-stupidity-helps-to-co-ordinate-your-left-and-right-cerebral-hemispheres/#more-613
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• Vigorous exercise DOES improve mental function
• It also provides a ‘brain-break’
• There is NO SCIENTIFIC EVIDENCE to support the idea that co-ordination exercises integrate the functions of the right and left brain hemisphere
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Exercise that increases blood flow anywhere,
increases blood flow everywhere.
(Geake, 2009)
Close
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Learning Styles
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Brain interconnectivity includes the senses
• All primates are V A K – including humans
• Congenitally blind children using Braille do so through the parts of their visual cortex sighted children use to learning written language
• Unsighted people create the same mental spatial maps of their physical reality as sighted people do – information is auditory / tactile but used as if it is visual.
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5 year olds can reliably distinguish different sized groups (V x V)
vs ?
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?
5 year olds can reliably distinguish different sized groups (V x V)
What happens when one group is replaced by as many sounds (V x A)?
vs ?
vs
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?
5 year olds can reliably distinguish different sized groups (V x V)
What happens when one group is replaced by as many sounds (V x A)?
No change in accuracy!
vs ?
vs
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VAK not learning styles but pre-learning perceptual acuities
• Input modalities in the brain are inter-linked visual auditory
visual motor
motor auditory
visual taste
• Input information is abstracted to be processed and learnt, mostly unconsciously, through the brain’s interconnectivity
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VAK classroom paradoxes• The V and K ‘learners’ at a concert• The A and K ‘learners’ at an art gallery• The V and A ‘learners’ in a craft practical lesson
VAK research• 121 different learning style inventories • Commercially available• Independent research: no learning benefit from any• No improvement of learning outcomes with V, A, K
above teacher enthusiasm“attempts to focus on learning styles were wasted effort” Kratzig & Arbuthnott (2006)
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Multiple Intelligences - nothing new here ...
Plato (500 BC)• logic• rhetoric• arithmetic• geometry-astronomy• music• dance-physical• meditation
Gardner (1980 AD)• logic-mathematics• verbal• interpersonal • spatial• music• movement• intrapersonal
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Multiple Intelligences - nothing new here ...
Plato (500 BC)• logic• rhetoric• arithmetic• geometry-astronomy• music• dance-physical• meditation
Gardner (1980 AD)• logic-mathematics• verbal• interpersonal • spatial• music• movement• intrapersonal
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Common brain functions for all acts of intelligence: NB school learning
• Working memory <= lateral frontal cortex
• Long term memory <= hippocampus + …
• Decision making <= orbitofrontal cortex
• Emotional mediation <= limbic subcortex + ofc
• Sequencing of symbolic representation <= fusiform gyrus + temporal lobe
• Conceptual inter-relationships <= parietal lobe
• Conceptual rehearsal <= cerebellum
Geake (2009)
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In other words, there are no Multiple Intelligences, but rather, it is argued, multiple applications of the same multifaceted intelligence
(Geake, 2008 p126)
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Left & Right Brain;
• The brain has 2 halves or hemispheres. • They process information differently• The left brain is more concerned with logic.• The right brain is more concerned with creativity.• But it’s far more complex than that. The two halves
work together, balancing the abstract, holistic picture with the concrete, logical messages.
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The Quiz
Any aspects not covered / unclear?
How did you do?
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Bibliography :• Blakemore, S-J. & Frith, U. (2005) The Learning Brian: Lessons for
Education. Oxford: Blackwell• Geake, J. (2008) Neuromythologies in Education Journal of
Educational Research Vol. 50, No. 2, June 2008, 123-133• Geake, J. (2009) The Brain at School: Educational Neuroscience in
the classroom. Maidenhead: OUP• Goswami, U. (2006) Neuroscience and education: from research to
practice, Nature Reviews: Neuroscience www.nature.com/nrn/journal• Greenfield, S. The Human Brain. London: Phoenix• Teaching & Learning Research Programme (2005) Neuroscience &
Educationhttp://www.tlrp.org/pub/documents/Neuroscience%20Commentary
%20FINAL.pdf
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