# data[].attributes.attachment_link.title
Sensation and Perception: Crash Course Psychology #5

# data[].attributes.body
Please keep in mind that this is a crash course for A&P so it will include extra details you may not need to know. (Always refer to your book and notes for the key terms you need)

# data[].attributes.body
-Olfactory receptors bind to the cilia of hair cells embedded in the ________ ________.

Olfactory receptor neuron:
-
-

# data[].attributes.body
5 types of tastes:
1.
2.
3.
4.
5.

Taste buds are called _______
Each taste bud contains about ____-____ taste-sensitive cells

# data[].attributes.body
Odorants:
Chemoreceptors:

Signals combine in the ________

# data[].attributes.body
1. Place Theory:

2. Frequency Theory:

# data[].attributes.body
Place the following terms in the correct section and list their function:

-Pinna  -Cochlea -Tympanic Membrane
-Ossicles -Basilar Membrane

Outer Ear:

Middle Ear:

Inner Ear:

# data[].attributes.body
Two main properties:
-
-
Sensory nuerons:

# data[].attributes.body
1.  Which visual sensory neuron do we have more of?
-Cones: 6 million in each eye
-Rods: about 120 million in each eye
-peripheral vision example
2. Who is most likely to be impacted by red/green color blindness?
-Males
3. What is visual accommodation?
-lens changes shape to bring objects into focus on retina

# data[].attributes.body
Cornea: protective outermost layer, 80% of focusing

Iris: color muscle of eye

pupil: hole that expands and contracts to let light in.

Lens: A flexible piece of tissue, located behind the pupil that focuses light on the retina.

Vitreous humor:  fluid in eye, reflects images back to retina --> upside down

Retina: thin layer of tissue on back of each eye; contains receptor cells

Fovea: The portion of the retina directly behind the pupil. It contains a large concentration of cones and no rods.

Optic nerve: where messages leave the eye and enter the brain, connect to the optic chiasm.

blind spot: spot on retina with no photoreceptors

# data[].attributes.body
Vision: candle flame on dark clear night 30 miles away

Smell: 1 drop of perfume in typical 3 bedroom apt.

Taste: 1 tsp of sugar in 2 gallons of water

Sound: wrist watch 20 ft in quiet room

# data[].attributes.body
Sensations: Physical stimuli from the environment
Perceptions: psych. Interpretations of those stimuli combined with prior knowledge of the world

Transduction: process where sensations are translated to electrochemical (neural) messages for the brain.

Absolute Threshold: minimal amount of stimulus needed for detection
Just Noticeable Difference:  smallest amount of stimulus required to notice a change.

# data[].attributes.body
Light is electromagnetic energy

Wavelength:

- color
- sensory neuron: cones

Intensity:

- brightness
-sensory neuron: rods

# data[].attributes.body
Trichromatic theory:
3 cones detect 3 colors
red, green, blue
original theory
-doesn't explain yellow

Opponent Processing theory:
-3 cones, 2 colors each
-red/green -blue/yellow -black/white
-can see yellow
-explains afterimage
-individual cells cannot fire both colors at the same time