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100

Your ability to attend to only one voice among many.

What is cocktail effect?

100
For their difference to be perceptible, two stimuli must differ by a constant ___________________, not a constant _____________________.
What are proportion and amount?
100
This part of the eye carries information to your brain, where the thalamus will receive and distribute the information.
What is the optic nerve?
100
In waves, this determines the pitch we experience.
What is frequency?
100
The following analogy describes THIS hearing process: Like soldiers who alternate firing so that some can shoot while others reload, neural cells can alternate firing. By firing in rapid succession, they can achieve a combined frequency above 1000 waves per second.
What is the volley principle?
200
In our everyday experiences, these 2 things blend into one continuous process.
What are sensation and perception?
200
After _____________ exposure to a stimulus, our nerve cells fire less __________________.
What are constant and less?
200
This is the retina's area of central focus. It is also where the cones cluster in and around.
What is the fovea?
200
To hear, we must somehow convert sound waves into neural activity. The middle ear transmits the eardrum's vibrations through a piton made of 3 tiny bones. These 2 areas of the ear bring up the rear in the hearing route.
What are the cochlea and the inner ear?
200
Pleasing tastes attracted our ancestors to this type of food that enabled their survival.
What is energy or protein-rich?
300

Detecting a weak stimulus depends not only ont he signal's strength, but also on our ___________________ state, such as experience, expectations, motivation, and alertness.

What is psychological?

300
Before our brain can allow us to consciously see, our eyes have to receive light energy and __________ it into neural messages.
What is transduce (or transform)?
300
"We can tell if a person is looking at a shoe, a chair, ro a face, based ont he pattern of their brain activity." Without these, researchers would not be able to do that.
What are feature detectors?
300
Damage to this part of the ear accounts for most hearing loss.
What are hair cells?
300
What it is called when we perceive vertical dimensions as longer than identical horizontal dimensions.
What is horizontal-vertical illusion?
400
To function effectively, we need ____________________ _____________________ low enough to allow us to detect important sights, sounds, textures, tastes, and smells.
What are absolute thresholds?
400
These two physical characteristics of light help determine our sensory experience of them.
What are hue and intensity?
400
Most people with color-deficient visoun are not actually "colorblind". They simply lack functioning _________ or _____________ sensitive cones, or sometimes both.
What are red or green?
400
As a general rule, if we cannot talk over a noise, it is potentially ________________.
What is harmful?
400
Perceived lightness depends on this, which is the amount of light an object reflects relative to its surroundings.
What is relative luminance?
500
AKA the just noticeable difference, this is the minimum difference a person can detect between any two stimuli half the time.
What is difference threshold?
500
This is the pathway light travels through the eye. First, light enters the eye through the cornea. Then....(name the 3 parts of the eye for light's pathway).
What are pupil, lens, retina?
500
This is the area of the brain where impulses from the retina are relayed en route to the visual cortex.
What is the thalamus?
500
The brain can interpret loudness from the ____________ of activated _______________________.
What are number and hair cells?
500
This is the order in which grouping occurs (5 pieces).
What are proximity, similarity, continuity, connectedness, and closure?
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