Fundamentals of Sensation
The minimum amount of stimulation required for a stimulus to be detected by a sensory system
absolute threshold
This sleep disorder is characterized by difficulty falling or staying asleep
insomnia
These photoreceptor cells allows for color vision
The measure of the intensity or loudness of a sound wave
amplitude
The chemical substances released by animals, including humans, that trigger social or behavioral responses
pheromones
The process by which sensory receptors become less responsive to constant stimuli over time.
sensory adaptation
This stage of sleep is restorative, characterized by slow delta waves
retina
Transduction occurs in this ear structure
cochlea
This ear structure helps our vestibular sense
semicircular canals
The conversion of sensory stimuli into neural impulses that can be understood by the brain
transduction
nREM Stage 1
The process by which the lens of the eye changes shape to focus on objects at different distances
accommodation
The brain's ability to determine the origin of a sound source
sound localization
olfaction and gustation
People who can see colors when listening to music are experiencing this perceptual phenomenon.
Synesthesia
Sleep spindles, K-complexes, and sleep talking are common in this stage of sleep.
This area has the highest concentration of cones and it's characterized by visual clarity
Problems with the outer or middle ear, such as damage to the ear canal or eardrum
conduction deafness
Your ability to touch your finer to your nose without looking (name of the sense)
kinesthetic sense
Principle that states the larger the original stimulus, the larger the change needs to be for a person to notice it.
Weber's Law
Sleep disorder involving sleepwalking, characterized by performing activities while still asleep
Somnambulism
Explains the perceptual phenomenon of afterimages
the theory that the pitch we perceive corresponds to the rate at which auditory nerve fibers fire
frequency theory
salty, sweet, bitter, sour, umami, oleogustus