SMARTER UK – RESOURCES FOR SCHOOLS Please feel free to use this PowerPoint presentation in the classroom. It is intended to support the KS3 & KS4 curriculum and the Scottish S3-S4 curriculum. KEY LEARNING: How memory works from sensory input, to sensory memory, short term memory, and long term memory, through to forgetting. Specific curriculum areas include: KS4 Links to GCSE Biology Syllabuses • OCR 21st Century Science MODULE B6: BRAIN AND MIND – OVERVIEW B6.1 How do organisms respond to changes in their environment? Coordination of responses to stimuli via the central nervous system. B6.4 How do humans develop more complex behaviour? Formation of neuron pathways and learning through repetition. B6.5 What do we know about the way in which the brain co-ordinates our senses? Mapping brain function; models for understanding memory. • AQA 11.1 How do human bodies respond to changes inside them and their environment? • The nervous system enables humans to react to their surroundings and coordinate their behaviour. • Receptors detect stimuli which include light, sound, changes in position, chemicals, touch, pressure, pain and temperature. (The structure and functions of sense organs such as the eye and the ear are not required.) • Information from receptors passes along cells (neurones) in nerves to the brain. The brain coordinates the response. Reflex actions are automatic and rapid. They often involve sensory, relay and motor neurones. The role of receptors, sensory neurones, motor neurones, relay neurones, synapses and effectors in simple reflex actions. Scottish Certificate in Education, Standard Grade Biology Topic 5: The body in action. Subtopic c: Coordination 19) Obtain and present information on the flow of information in the nervous system. • State that the nerves carry information from the senses to the central nervous system and from the central nervous system to the muscles. Describe how a reflex action works, using a simple model of a reflex arc. • State that the central nervous system sorts out information from the senses and sends messages to those muscles which make the appropriate response. 20) Obtain and present information on the three main parts of the brain. Identify the cerebrum, cerebellum and the medulla and state their functions in simple terms. Memory How does it work? Memory "In study after study, of composers, basketball players, fiction writers, ice-skaters, concert pianists, chess players, master criminals... this number comes up again and again. Ten thousand hours is equivalent to roughly three hours a day, or 20 hours a week, of practice over 10 years... No one has yet found a case in which true world-class expertise was accomplished in less time. It seems that it takes the brain this long to assimilate all that it needs to know to achieve true mastery.“ Professor Daniel J. Levitin, neuroscientist and musician To truly master something takes 10,000 hours of practice Smarter UK scientists have created different models to try to understand memory rehearsal Stimuli are received from the senses: sight; hearing; taste; smell; touch; attention attention rehearsal recall Multi store model of memory Smarter UK sensory memory sensory input short term memory forgetting long term memory Credit ; N. Seery, Wellcome Images sensory input scientists have created different models to try to understand memory rehearsal By paying attention to these stimuli, they enter sensory memory attention rehearsal attention Sensory memory lasts 0.25-2 recall seconds Multi store model of memory Smarter UK sensory memory sensory short term memory memory forgetting long term memory Credit ; N. Seery, Wellcome Images sensory input scientists have created different models to try to understand memory Short term memory lasts up to 30 seconds rehearsal It can store 5-9 items at a time “chunking” information makes it easier to remember • 313546578889 is hard to remember rehearsal •attention 313 546 578 889 is much easier to remember attention Information must be rehearsed to recall be remembered. Multi store model of memory Smarter UK sensory memory short term memory forgetting Credit ; N. Seery, Wellcome Images sensory input Ifa distraction stops you from rehearsing, you will forget in just a few seconds long term short term memory memory scientists have created different models toThere try to understand memory is no limit to how much you can store in long term memory rehearsal Memories can be stored there for your whole lifetime Rehearsal and recall make things more likely to be remembered attention Multi store model of memory Smarter UK sensory memory long term memory forgetting Credit ; N. Seery, Wellcome Images sensory input Long term memory canrehearsal be divided into different aspects such as: • how to do tasks recall • facts and information • how things are related to each other long term short term memory memory attention scientists have created different models to try to understand memory forgetting Without recall and rehearsal, memories are likely to be forgotten rehearsal Brain damage and some diseases can also affect memory. Alzheimer’s disease sufferers lose their short term memory at first. The disease rehearsal attention often progresses to affect long term memory too. recall attention Multi store model of memory Smarter UK sensory memory forgetting Credit ; N. Seery, Wellcome Images sensory input Sometimes brain damage can cause loss of long term memory, but short term memory long term term can still beshort working well memory memory