30 Questions
Which part of the eye adjusts the amount of light allowed into the eye?
Iris
What are the specialized cells in the retina that convert light energy into nerve cell activity?
Photoreceptors
What is the physical characteristic of sound that determines the difference in air pressure from a wave's baseline to its peak?
Amplitude
What is the structure in which transduction actually occurs in the inner ear?
Cochlea
What is the term for the psychological dimension of sound that is determined by the amplitude of the sound wave?
Loudness
What is the term for the psychological dimension of sound that depends on the frequency of sound waves?
Pitch
What is the term for the sound's quality caused by complex wave patterns that are added onto the lowest, or fundamental, frequency of a sound?
Timbre
Which sense detects chemicals that are airborne or volatile?
Smell
Which sense is responsible for detecting physical pressure on tissue?
Touch
Which theory of color vision states that there are three types of visual elements in the eye, each most sensitive to a different wavelength?
Trichromatic Theory
Which theory of color vision explains afterimages?
Opponent-Process Theory
How does the brain analyze the location of sound?
Both A and B
Which sense is responsible for proprioception, providing information about the position and movements of the body?
Proprioception
How does the auditory system generally code intensity?
By the frequency of firing of the given neuron
Which step in sensation involves accessory structures that collect and modify sensory stimuli?
Transduction
What is transduction in the context of sensation?
The process of converting incoming energy into nerve cell activity
What is encoding in the context of sensation?
The translation of a stimulus' physical properties into neural activity
What is the nature of the physical stimulus detected by the sense of vision?
Electromagnetic radiation
What is the form/function of the accessory structure in vision?
Collects and modifies sensory stimuli
What are the receptor cells involved in the sense of vision?
Neural receptors
What are the psychological correlates of the stimulus dimensions in vision?
Great sensitivity and great sharpness
According to the gate control theory of pain, what is the function of the 'gate' in the spinal cord?
It blocks pain impulses from traveling to the brain
What may explain why rubbing the area around a wound eases pain?
Input from other skin senses takes over the pain pathways
What is analgesia?
The absence of pain sensation in the presence of a normally painful stimulus
Which of the following chemicals released by the body during stress play a role in blocking pain signals?
All of the above
What carries the emotional component of a painful stimulus to areas of the hindbrain and reticular formation?
Specific pathways
How does cognition affect emotional responses to pain?
Cognition affects emotional responses to pain
What is the effect of focusing on distracting thoughts on emotional responses to pain?
It decreases emotional responses to pain
What are the learned responses associated with pain called?
Emotional components
What is the role of the thalamus in the gate control theory of pain?
It carries the emotional component of a painful stimulus
Quiz: Differentiating Flute and Clarinet Notes, and Understanding Taste and Smell Perception
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