Psychology of Sensory Perception

Which of the following types of acceleration is detected by the saccule?

Rotational acceleration
Angular acceleration
Horizontally directed linear acceleration
Vertically directed linear acceleration (correct)

What is the main function of the otoliths in the inner ear?

To detect sound waves
To detect chemicals in the environment
To detect changes in air pressure
To regulate balance and equilibrium (correct)

What is the primary function of exteroreceptors?

To detect chemicals in the external environment (correct)
To detect changes in blood pressure
To detect changes in the internal environment
To regulate body temperature

Which of the following is an example of a tastant?

A sweet molecule that binds to a taste receptor (A) Signup and view all the answers

What is the primary mechanism by which salt taste is transduced?

Entry of sodium ions through specialized ion channels (D) Signup and view all the answers

Which of the following is a function of the sense of smell in certain species?

To influence the flow of digestive juices (C) Signup and view all the answers

What is the primary mechanism by which bitter taste is transduced?

Activation of G-protein coupled receptors (B) Signup and view all the answers

What is the primary function of the olfactory receptors in the nasal cavity?

To detect chemicals in the environment (C) Signup and view all the answers

What is the primary function of the eyelashes?

To trap fine, airborne debris (A) Signup and view all the answers

What is the main component of the anterior cavity?

Aqueous humor (D) Signup and view all the answers

What is responsible for the unique color of each individual's eyes?

The pigment in the iris (B) Signup and view all the answers

What is the function of the choroid layer?

To nourish the retina (D) Signup and view all the answers

What is the main function of the cornea?

To allow light rays to pass into the interior of the eye (A) Signup and view all the answers

What is the purpose of the vitreous humor?

To maintain the spherical shape of the eyeball (D) Signup and view all the answers

What is the function of the radial muscle in the iris?

To dilate the pupil (A) Signup and view all the answers

What determines the degree of refraction of light rays?

The difference in density between the two media (B) Signup and view all the answers

What is the result of an increase in the angle of refraction?

The refraction increases (B) Signup and view all the answers

What type of mechanoreceptors are responsible for detecting light touch sensation and sensation of texture?

Merkel Cells (A) Signup and view all the answers

What is the term for the age-related reduction in accommodation ability?

Presbyopia (B) Signup and view all the answers

Which type of mechanoreceptors are stimulated by stretch or twisting in the skin?

Ruffini Corpuscles (D) Signup and view all the answers

What is the function of the otolith organs in the vestibular apparatus?

Provide position of the head relative to gravity and changes in rate of linear motion (C) Signup and view all the answers

What is the function of the ciliary muscle and suspensory ligaments in accommodation?

To adjust the strength of the lens (D) Signup and view all the answers

What is the function of the semicircular canals in the vestibular apparatus?

Detect rotational or angular acceleration or deceleration of the head (D) Signup and view all the answers

What is the term for the point on the retina where the optic nerve leaves?

The optic disc (B) Signup and view all the answers

What type of mechanoreceptors are responsible for sensing coarse touch, pressure, and vibrations?

Pacinian Corpuscles (A) Signup and view all the answers

What is the function of the outer segment of photoreceptor cells?

To detect light stimuli (B) Signup and view all the answers

What is the term for the process of gradually regenerating photopigments in the dark?

Dark adaptation (D) Signup and view all the answers

What is the function of the lateral line system?

Somesthetic and proprioceptive mechanoreceptor system (D) Signup and view all the answers

What type of mechanoreceptors are responsible for detecting movement of hairs?

Root Hair Plexuses (A) Signup and view all the answers

What is the type of cell that makes up the outermost layer of the neural portion of the retina?

Rod and cone cells (B) Signup and view all the answers

What is the term for the derivative of vitamin A that is part of the photopigment?

Retinene (D) Signup and view all the answers

What is the function of the statocysts?

Gravity receptors (B) Signup and view all the answers

What is a necessary condition for a molecule to be detected as an odor?

It must be sufficiently volatile to enter the nose in inspired air. (C) Signup and view all the answers

What is the purpose of the 'smell files' in the glomeruli of the olfactory bulb?

To integrate information from multiple receptors (D) Signup and view all the answers

What is the primary role of the vomeronasal organ (VNO) in mammals?

To detect pheromones involved in reproductive behavior (C) Signup and view all the answers

What is the term for the reduction in sensitivity to an odor over time?

Olfactory adaptation (B) Signup and view all the answers

What is the primary function of the olfactory tract?

To transmit olfactory information to the cerebral cortex (A) Signup and view all the answers

What is the term for the lingering of an odor due to the presence of 'odor-eating' enzymes?

Odor persistence (C) Signup and view all the answers

What is the primary function of the G-protein coupled mechanism in olfactory transduction?

To depolarize the olfactory receptor neuron (D) Signup and view all the answers

What is the primary function of the photopigments involved in vision?

To detect light (B) Signup and view all the answers