extra credit for participating in experiments
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Extra Credit for Participating in Experiments. Go to www.tatalab.ca to sign up We are recruiting for a variety of experiments including basic perception and ADHD. ADHD Research Project. - PowerPoint PPT PresentationTRANSCRIPT
Extra Credit for Participating in Experiments
Go to www.tatalab.ca to sign up
We are recruiting for a variety of experiments including basic
perception and ADHD
ADHD Research ProjectWe are specifically recruiting individuals who
have been diagnosed with ADHD and are currently taking medication
Contact Karla at [email protected] for more information or to sign up
Test Wednesday and Thursday this week!
• Matching• Multiple Choice
– Select the one best answer
Test Wednesday and Thursday this week!
• True/False and Yes/No:– be sure to select true or false (or yes or no) for each answer.– Note that “yes” doesn’t mean “true”, it just means “yes”.
A quick peek at all the other sensory systems we don’t
have time to considerTouch, Taste, Smell,
Proprioception, Thermoception and Balance
How do we Stay Balanced?
The Vestibular System
Vestibular System (Balance)
Vestibular System (Balance)
Vestibular System (Balance)
Vestibular System (Balance)
Head accelerates this way
Cupula getspushed
Fluid goes this way
Vestibular System (Balance)
Head accelerates this way
Cupula getspushed
Fluid goes this way
Vestibular System (Balance)
• movement of the cupula is detected by hair cells
• hair cells in the vestibular system are more sensitive than hair cells on the basilar membrane!
Vestibular, Visual, and Proprioceptive Systems Work Together
• Try standing on one foot with your eyes closed!
Fun Facts about The Vestibular System
• Seasickness arises when the vestibular system and the visual system send conflicting information
Fun Facts about The Vestibular System
• Seasickness arises when the vestibular system and the visual system send conflicting information
• People can be knocked down by moving walls!
Fun Facts about The Vestibular System
• Seasickness arises when the vestibular system and the visual system send conflicting information
• People can be knocked down by moving walls!
• Alcohol causes the spins by (among other things) changing the density of the fluid in the semicircular canals
Sensory Systems:
• Touch, temperature, taste, smell
There are a variety of touch receptors
• Touch receptors send signals to the somatosensory cortex via long axons in the spinal cord
• Signals are sent to the opposite (contralateral) side of the brain
• Wilder Penfield - Montreal Neurological Institue - 1940’s
• Found somatotopic map by stimulating brain during surgery
The Homunculus
• Two classes of thermoreceptors: warm and cold
Thermoception
Taste (Gustation)
Taste buds contain
chemical receptors
Taste
What are the various “tastes”?
• Multi-dimensional scaling reveals several “varieties” of tastes:– sweet– salt– bitter– sour– umami (MSG) - possibly a protein
receptor– there may also be a lipid (fat) receptor
Taste