Sleep and Biorhythms

 

Terms used for endogenous cycles of different lengths and examples of each

How endogenous rhythms are studied

What is a free-running rhythm? How do they differ in characteristics from the rhythms seen under normal conditions?

What is a zeitgeber?

What is the research evidence about the location of the biological clock?

Describe at least 2 mechanisms by which the functioning of this biological clock may make us sleepy?

What stimulus is most effective in resetting the biological clock?

Describe at least 2 ways that you can “encourage” the resetting of your biological clock if, for example, you were going to London?

 

What recordings are a typical part of sleep research?

What are the characteristics of the various sleep stages and normal sequencing of stages during a night’s sleep?

How is NREM sleep different from REM sleep?

What was the early view of sleep as a behavioral phenomenon?

What research findings lead to a change in this view?

What parts of the brain are involved in maintaining wakefulness/alertness?

Why, specifically does caffeine keep you awake and do anti-histamines make you sleepy?

What parts of the brain and neurotransmitter are involved in triggering REM or are active while we are dreaming?

What are the characteristics of these sleep disorders:

REM behavior disorder

Narcolepsy

Sleep-walking

Night terrors

What are some of the types of insomnia and possible physiological correlates (e.g. why might someone have “onset insomnia”?)

 

What are the 2 main theories of why we sleep?

2 theories about the function of REM sleep?


Audition

Parts of ear

Structure of cochlea and location of hair cells

Characteristics of sound waves

Traveling waves in the cochlea and how they related to pitch  perception

Organization of auditory cortex

2 types of deafness

How sounds are localized
cochlear implant

  

The sensory organs and receptors of the vestibular system and what they respond to


Dermatomes of the skin

Where in cortex sensations from the skin are processed

Neurotransmitters related to pain

Irritating chemicals that stimulate pain receptors

The gate theory (or gate control theory)
 

The characteristics and types of taste receptors

Individual differences in taste sensitivity

The difference between experiencing taste and experiencing flavor

Location and characteristics of olfactory receptors

What is anosmia ?

What is a pheromone? Example in animals? Example in humans?

 

Vision

 

The characteristics of light waves

The parts of the eye

The structure of the retina

The differences between rods and cones

3 different theories of color vision and where each seems to apply

the basis for color blindness/deficiency
trichromatic, opponent process and retinex theories of color vision

Other terms:

Astigmatism

Macular degeneration

Negative afterimage
retinal or  binocular disparity and why it is important

Visual pathway through retina, optic nerve, lateral geniculate of thalamus, visual cortex
what are receptive fields
what is the difference between the receptive field of an optic nerve fiber (ganglion cell) and that of a visual cortex cell
what is lateral inhibition and what is it good for
what other regions of cortex are involved in visual processing and how (what are the dorsal and ventral stream?)
what is agnosia