Dement & Kleitman Study: Sleep and Dreaming PDF
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This document appears to be a presentation or study guide based on the Dement & Kleitman sleep study. It covers topics like EEG recordings, rapid eye movement (REM), sleep stages, and the methods used in the study. The document also includes questions and prompts designed for student learning and analysis of the study’s results.
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What is the Most Memorable Dream you Have Had? https://www.youtube.com/watch?v=2W85Dwxx218&ab_channel=TED-E How could you study Dreaming / Dreams? – Design a quick study - 5 Mins You could use an EEG? - Electroencephalogram What do you think...
What is the Most Memorable Dream you Have Had? https://www.youtube.com/watch?v=2W85Dwxx218&ab_channel=TED-E How could you study Dreaming / Dreams? – Design a quick study - 5 Mins You could use an EEG? - Electroencephalogram What do you think this does? How could it help you study Sleep and Dreams? The Brain send Electrochemical Signals which can be measured– Called Action Potentials What do we recognise? – the EEG Can pick up these signals – However it does not have good spatial specificity EEG Waves – The Main Ones There are four types of EEG patterns including alpha waves, beta waves, theta waves and delta waves. Each of these patterns has two basic properties that psychologists can examine: Amplitude: the intensity or size of the activity Frequency: the speed or quantity of activity What a modern day study might look like https://www.youtube.com/watch?v=vniog26Qp94&ab_channel=Ann%26RobertH.LurieChildren%27sHospitalofChicago Never Been a Question… But S & W Strengths 1. Records brain activity over time and can, therefore, monitor changes as a person switches from task to task or one state to another (e.g. falling asleep). 2. EEGs have medical applications in diagnosing disorders such as epilepsy and Alzheimer’s. 3. Non-invasive - No insertion of instruments unlike PET and no exposure to radiation – EEGs are virtually risk free and is avoidant of any danger to the brain itself. 4. Cheaper than fMRI thus making them more available – Psychologists can gather more data on the functioning of the human brain thus contributing to our understanding of different psychological phenomena. Limitations 1. EEGs only monitor electrical activity in outer layers of the brain, therefore, cannot reveal electrical activity in deeper brain sites. 2. Not highly accurate – electrical activity detected in several regions of the brains simultaneously – Very hard to pinpoint exactly which area is producing this activity. therefore cannot distinguish differences in activity between 2 closely adjacent areas. 3. Uncomfortable – Hard for the patients as electrodes are attached to their head – Could result in an unrepresentative reading as the patients discomfort could trigger cognitive responses to the real time situation. Rapid Eye Movement – An Important Stage of Sleep https://www.youtube.com/watch?v=U4-6bQXoOkA&ab_channel=PsychExplained What do we notice about these EEG Recordings? What might we predicted about what happens in these separate stages? When does sleep look most like Awake… Read this sheet on Google Classroom (not on the slide, why do people do this clearly this slide is not the whole text????) Asnwer the questions at the bottom of the Worksheet BONUS Draw an amazing set of Brain Waves into your book for a yellow ticket!!! Procedure Method – Read? – The are three things happening at the same time Results Whats the difference between a result and a conclusion? What does it show? What does it show? What does it show? What does it show? What does it show?
