BIO3303 – Sensory Physiology Lecture Quiz

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What is the study of sensory physiology primarily concerned with?

Processing sensory information in the brain

Detecting incoming sensory signals

Classifying different types of sensory receptors

Transducing sensory stimuli (correct)

Which component is NOT part of the sensory system organization?

Effector neurons (correct)

Receptor proteins

Area of brain to which sensory neurons project

Accessory non-neural tissues

What is the main function of receptor proteins in sensory receptors?

Classifying different types of sensory stimuli

Transducing sensory stimuli

Processing sensory information

Specializing in detecting incoming sensory signals (correct)

What type of receptors fire action potentials only when the stimulus begins and adapt quickly?

Phasic receptors Signup and view all the answers

Which type of neurons provides more precise localization of a stimulus on the sensory surface?

Neurons with small receptive fields Signup and view all the answers

What mechanism increases the contrast between signals from neurons at the center of the stimulus and neurons on the edge, allowing for further discrimination?

Lateral inhibition Signup and view all the answers

In population coding, where is the information about the stimulus encoded?

In the pattern of firing of multiple neurons Signup and view all the answers

How is stimulus intensity encoded by receptor cells?

Through changes in the frequency of action potentials Signup and view all the answers

What happens when the dynamic range of receptor cells is maxed out?

No increase in action potential response Signup and view all the answers

What affects the rate of action potentials?

Graded receptor potentials Signup and view all the answers

What is the function of a photoreceptor?

Detect light Signup and view all the answers

Which receptor is capable of detecting multiple modalities?

Nociceptors Signup and view all the answers

What is the process of transduction in sensory reception?

Conversion of stimulus into changes in membrane potential Signup and view all the answers

How do action potentials encode for the type of stimulus?

Via the receptor specificity and afferent neuron Signup and view all the answers

How can polymodal receptors encode more than one type of stimulus?

Through graded potentials generating action potentials at different temporal rates Signup and view all the answers

What is the basis for stimulus modality specificity according to the text?

High degree of receptor specificity and afferent neuron Signup and view all the answers

What type of neurons provide more precise localization of a stimulus on the sensory surface?

Neurons with small receptive fields Signup and view all the answers

What type of receptors fire action potentials only when the stimulus begins and adapt quickly?

Phasic receptors Signup and view all the answers

In population coding, where is the information about the stimulus encoded?

In the pattern of firing of multiple neurons Signup and view all the answers

BIO3303 – Sensory Physiology Lecture Quiz

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Questions and Answers

What is the study of sensory physiology primarily concerned with?

Which component is NOT part of the sensory system organization?

What is the main function of receptor proteins in sensory receptors?

What type of receptors fire action potentials only when the stimulus begins and adapt quickly?

Which type of neurons provides more precise localization of a stimulus on the sensory surface?

What mechanism increases the contrast between signals from neurons at the center of the stimulus and neurons on the edge, allowing for further discrimination?

In population coding, where is the information about the stimulus encoded?

How is stimulus intensity encoded by receptor cells?

What happens when the dynamic range of receptor cells is maxed out?

What affects the rate of action potentials?

What is the function of a photoreceptor?

Which receptor is capable of detecting multiple modalities?

What is the process of transduction in sensory reception?

How do action potentials encode for the type of stimulus?

How can polymodal receptors encode more than one type of stimulus?

What is the basis for stimulus modality specificity according to the text?

What type of neurons provide more precise localization of a stimulus on the sensory surface?

What type of receptors fire action potentials only when the stimulus begins and adapt quickly?

In population coding, where is the information about the stimulus encoded?

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