Sensation Basics
What is the process by which sensory receptors detect stimuli from the environment?
Sensation Basics.
What part of the eye adjusts to control the amount of light entering?
The pupil.
What type of waves are detected by the auditory system?
Sound waves.
What is the name of the sensory system responsible for detecting taste?
Gustation.
What psychological process involves the brain interpreting sensory information?
Perception.
What is the name of the process where sensory receptors convert stimuli into neural signals?
Transduction.
What are the two types of photoreceptor cells in the retina?
Rods and Cones.
What part of the ear is responsible for transducing sound waves into neural signals?
Cochlea.
What are the five basic tastes that humans can detect?
Sweet, sour, salty, bitter, umami.
What principle of perception describes the tendency to perceive objects that are close together as part of a group?
Proximity.
What is the minimum amount of stimulus energy needed to detect a stimulus 50% of the time?
Absolute Threshold.
What theory of color vision proposes that there are three types of cones sensitive to red, green, and blue light?
Trichromatic Theory.
Which theory explains how we hear high-pitched sounds based on where sound waves hit along the cochlea?
Place Theory.
What sense is responsible for detecting odors in the environment?
Olfaction (smell).
What term refers to the brain’s ability to maintain a consistent perception of an object despite changes in sensory input?
Perceptual Constancy.
What theory explains how stimuli are detected under different conditions, such as noise or distractions?
Signal Detection Theory.
What theory suggests that color perception is controlled by opposing pairs of colors?
Opponent Process Theory.
What structure in the middle ear amplifies sound by transmitting vibrations from the eardrum to the inner ear?
Ossicles.
What is the name of the theory that explains how pain is blocked or allowed to pass through the spinal cord?
Pain-Gate Theory.
What type of depth perception relies on information from both eyes?
Binocular Cues.
What term describes the brain’s decreasing sensitivity to a constant stimulus over time?
Sensory Adaptation.
What term describes the point in the retina where the optic nerve leaves the eye, resulting in no photoreceptors?
Blind Spot.
Which theory suggests that pitch is determined by the frequency of neural impulses matching the frequency of a sound wave?
Frequency Theory.
What are the two systems that help us understand body position and balance?
Kinesthetic Sense and Vestibular Sense.
What visual illusion distorts the perceived length of lines due to arrow-like ends?
Muller-Lyer Illusion.