Perceptual Puzzles
You recognize your friend's car as the same size even as it gets farther away and its image on your retina shrinks. What principle explains this?
Light enters the eye, but the brain cannot directly interpret light energy as a neural message. What process converts the energy into neural signals?
Transduction
Two sounds have different frequencies, but one has a higher perceived pitch. Which sound has the higher frequency?
The sound with the higher frequency.
While spinning in an office chair, you feel dizzy when you stop. Which sensory system detects head movement and helps maintain balance?
At a crowded party, you focus on one conversation and largely ignore other conversations. What attention process is this?
Selective Attention.
A student who expects a horror movie to be scary interprets an ambiguous shadow as a threatening figure. What concept influences the student's interpretation?
Perceptual Set
A person reading fine print relies on the retinal area with the greatest concentration of cones and the sharpest visual acuity. Identify the area.
Fovea (central vision, cones)
This theory explains how we perceive different pitches based on the location of the greatest vibration along the basilar membrane.
Place Theory
Fluid moves inside three loop-shaped structures in the inner ear when you rotate your head. Name these structures.
Semi-circular canals.
A researcher finds that a participant detects a faint tone in 50% of trials under specified conditions. What concept is being measured?
Absolute Threshold
Railroad tracks appear to meet at the horizon, even though you know they remain parallel. Which monocular depth cue is operating?
Linear Perspective
An image falls on the optic disc, where there are no rods or cones. Why does the person normally fail to notice a missing patch in their visual field?
Blind Spot
A low-frequency tone is encoded through the timing of neural firing that matches the sound wave's frequency. Which theory best explains this?
Frequency Theory
With your eyes closed, you can touch your nose because you sense where your arm and fingers are positioned. What sense makes this possible?
Kinesthesia or Kinesthetic Sense.
A person notices that a 100-gram weight has increased to 105 grams. What is the smallest detectable change between two stimuli called?
Just Noticeable Difference (JND) or Difference Threshold.
In a logo, you perceive a white shape as the main object and the surrounding black area as its background. Which perceptual process organizes the image this way?
Figure-Ground
As an object moves from far away to very close, the lens changes shape to keep its image focused on the retina. What is this adjustment called?
Accommodation
Name the six main taste components.
1. Salty
2. Sweet
3. Sour
4. Umami
5. Oleogustus
6. Bitter
A person judging how far away a ball is uses the difference between the images reaching their two eyes. What binocular depth cue is this?
Retinal Disparity
A student notices a 2-pound increase in a 20-pound backpack but needs a 5-pound increase in a 50-pound backpack to notice a difference. Which principle does this illustrate?
Weber's Law
A classmate sees a partially covered circle as a complete circle and groups nearby matching shapes together. Name the two Gestalt principles involved.
1. Closure
2. Similarity
A person stares at a green image and then looks at a white wall, where a reddish-magenta afterimage appears. Which theory explains this, and what are the three opponent pairs?
Opponent-process theory:
1. Red–green
2. Blue–yellow
3. Black–white
A person can hear a low-pitched sound, but the auditory nerve cannot fire rapidly enough to match every cycle of the sound wave. Which theory explains how groups of neurons alternate their firing to represent the frequency?
Volley Principle
An artist creates depth in a painting by making distant objects appear smaller and parallel lines converge. Are these binocular or monocular cues, and what are the two specific cues?
Monocular cues: relative size and linear perspective
A student recognizes a familiar word in a blurry image because context and prior knowledge guide interpretation. What type of processing is this, and how is it different from the other type of processing?
Top-down processing. It uses expectations and prior knowledge, whereas bottom-up processing begins with incoming sensory information.