midterm 1 review - university of california, san...
TRANSCRIPT
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MIDTERM 1REVIEW
I N T R O D U C T I O N TO C O G N I T I V E S C I E N C EC O G S 1 – W I N T E R 2 0 2 0
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EXAM DETAILS:
Once the first student leaves the exam, no late exams will be given.
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INTRODUCTION TO COGNITIVE SCIENCE
• Boyle
• Week 1
• Quiz A
• Readings
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WHAT IS COGNITIVE SCIENCE ANYWAY?
T H E B I G Q U E S T I O N F O R T H I S L E C T U R E :
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This is what some linguists study and argue about! Some main theories by: Pinker, argues language is innate human abilityElman, argues language use arises from experience, it is learned
Language: Nature v. Nurture?
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BCI: “READING MINDS”What does it mean to “read the mind”?
...sensors to record electrical activity, which computer decodes in order to control external device accordingly
Brain Computer Interface. Field of research, uses...
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HOW DOES COGNITIVE SCIENCE DIFFER FROM… computer science,
neuroscience, philosophy, psychology, and
linguistics?
Independently, each field could investigate questions unrelated to cognition.
Cognitive science, however, requires each field’s input in order to form a complete picture of cognition.
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SLEEP• Boyle
• Week 1
• Quiz A
• Assigned Readings:
– Clocks Within Us
– Why Can’t We Fall Asleep?
– The Work We Do While We Sleep
– The Walking Dead
– Brain Facts Chapter 6: Sleep
– Brain Facts Chapter 12: Degenerative Disorders
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W H A T I S S L E E P ?
W H A T I S I T S R E L A T I O N S H I P T O C O G N I T I O N ?
H O W D O E S I T R E L A T E T O Y O U R H E A L T H ?
T H E B I G Q U E S T I O N S F O R T H I S L E C T U R E A R E :
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https://www.berkeley.edu/news/media/releases/2008/01/23_ucues2.shtml
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FACTORS:
Purpose
Social
Financial
Community
Physical Activity
Sleep and Well-Being
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HOW DO WE FALL ASLEEP? External Cues
What is a zeitgeber? Examples?
What is the role of melatonin and
light in regulating circadian rhythms?
What is so important about blue
light?
What factors are associated with
our ability to go to sleep?
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SUPRACHIASMATIC NUCLEUS (SCN)
What is it? Where is it?
What is its function? How does it perform
this function?
Internal Regulators of Sleep & Wakefulness
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MORE REGULATORS…
Adenosine (Basal forebrain and cortex, ↑ awake time ↑production)
Melatonin
(SCN - bundle of cells located in hypothalamus)
Orexin(hypothalamus)
Hypothalamus: produces orexin (a hormone that excites arousal
system, leads to release of norepinephrine which ultimately leads to melatonin suppression).
Basal forebrain and cortex: produce adenosine in
proportion with how long you’ve been awake
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ME AND YOU AND CYANOBACTERIA:
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P H A S E S O F H E A LT H Y S L E E P :
• Both duration of overall sleep and the duration of individual stages of sleep vary over the course of development.
SWS(slow wave sleep)● muscle
relaxation● ↓HR, BP, body
temperature
REM(rapid eye movement)● atonia (muscle
paralysis; exceptions for respiratory muscles-yay! And eye muscles)
What happens to your body when you fall asleep?
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EFFECTS OF SLEEP DEPRIVATION:
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CHRONIC SLEEP DEPRIVATION DISORDERS
REM-sleep behavior disorder
● Paralysis during REM sleep does not occur → dreams are acted out
● Increased risk for neurodegenerative diseases
Sleep apnea
● Breathing pauses for seconds to minutes during sleep → body briefly jolts to continue breathing
● Cognitive impairments● Increased risk for diabetes,
cardiovascular diseases
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THE INFLUENCE OF SLEEP DISRUPTION ON DIABETES AND AD
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Simon Makin: NATURE | VOL 559 | 26 JULY 2018
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https://www.nature.com/articles/d41586-018-05724-7
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https://www.helsinki.fi/en/news/health-news/deep-sleep-cleanses-the-brain
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https://www.helsinki.fi/en/news/health-news/deep-sleep-cleanses-the-brain
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OTHER SLEEP STUFF TO MAKE SURE THAT YOU UNDERSTAND:
Where and what is the master clock?
What is the big deal about blue light?
What is sleep inertia?
What is the cognitive and physical performance of someone who has not slept in a 24-hour period?
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3119836/
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3119836/
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https://www.researchgate.net/publication/221689449_Reconsidering_the_Role_of_Neuronal_Intrinsic_Properties_and_Neuromodulation_in_Vestibular_Homeostasis
REM sleep when dreams
are most common
late NREM when sleep pressure dissipates and dream
reports are more frequent
early NREM when sleep pressure is high and dream reports are rare
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S P L I T B R A I N – H O W I S T H E B R A I N O R G A N I Z E D ?
H O W D O E S L A N G U A G E P R O V I D E I N S I G H T I N T O C O G N I T I O N ?
T H E M A I N Q U E S T I O N S F O R T H I S W E E K A R E :
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• Boyle and Coulson
• Week 3
• Quiz C
• Assigned Readings
– Seeing the Brain Speak
– Brain Facts – Chapter 4Learning, Memory and Language
SPLIT BRAIN AND LATERALIZATION OF FUNCTION
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S P L I T B R A I N
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Wernicke’s-Geschwind model
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GOTTA KNOW THE BRAIN!
What does each lobe do?
Where is: M1A1V1S1
Broca’s areaWernicke’s area
SCNHippocampus
Corpus callosumDentate gyrusCA1,CA2, CA3
?
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EXAM DETAILS:
Once the first student leaves the exam, no late exams will be given.
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