Olfaction
What does the sense of smell depend on?
The receptors in the nose
What are sensory receptors in the skin sensitive to?
touch, pressure, temperature, and pain
Visible light is what allows us to [blank]
See.
Where does light enter the eye? Where does it pass after entering?
cornea, and then it passes through the pupil and lens.
What is Perception?
the process by which the brain interprets sensory information.
What is the function of the receptors in the nose?
To detect chemical substances and transmit it to the brain
Your skin is the body's [blank]
largest sensory organ.
Different wavelengths create [blank]
Different colors.
The lens change the shape in a process called [blank].
accommodation.
What is Perceptual set?
the tendency for our perceptions to be influenced by our expectations or preconceptions.
Why is olfaction important?
It helps us distinguish between rotten foods that may be poisonous.
What do the skins receptors transmit sensory information to?
Spinal cord.
What is the cornea?
The clear outer layer
How does accommodation work?
By adjusting to the distance of the object to help focus the image on the retina.
What is Bottom-Up Processing? What is it used for?
The brain assembles specific features like angles and lines to form patterns. Used for combining elements of letters and words.
Smell is the only sense where information does not go through [blank] on its way to the [blank]
Thalamus, Cerebral Cortex
What is the somatosensory cortex?
The part of the cerebral cortex that processes information from our skin receptors and makes us aware of how and where we have been touched.
Which color has the longest wavelength? Which one has the shortest?
Red, Violet
Rods and cones send signals to [blank], which then transmit them to [blank]
bipolar cells, ganglion cells
What is Top-Down Processing? What is it used for?
Involves perceiving patterns as meaningful wholes without piecing together parts. Used for recognizing patterns in sounds and music.
A declining sense of smell in later life may be the reason why [blank]
many older people complain that food doesn’t taste as good as it once did.
Where does the spinal chord relay sensory information?
somatosensory cortex.
How does the iris work?
controls how much light enters by changing the size of the pupil. In bright light, the pupil gets smaller, in the dark, it gets larger as it tries to let in more light.
The axons of ganglion cells form the [blank], which carries visual information to the brain—first to the [blank], then to the [blank] in the [blank], where vision is processed.
optic nerve, thalamus, visual cortex, occipital lobe
What are the 5 factors affecting attention?
Motivation and attention, Repeated Exposure, Selective attention, Motivational states and attention, and Habituation.