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WorksheetsIntro to Psychology: Sensation and Perception
Total questions: 40
Worksheet time: 20mins
Which of the following best defines sensation?
The process of interpreting sensory information
The way the brain organizes incoming stimuli
The process of receiving stimuli from the environment
The act of remembering past experiences
What is the process by which sensory information is converted into neural signals?
Transmission
Transduction
Perception
Sensory adaptation
Which sensory threshold refers to the smallest difference between two stimuli that can be detected 50% of the time?
Absolute threshold
Relative threshold
Just noticeable difference (JND)
Sensory adaptation
Which scientist developed the law of just noticeable differences?
Gustav Fechner
Ernst Weber
Wilhelm Wundt
John Watson
What does Weber’s Law state?
The larger the stimulus, the greater the change needed for detection
Sensory adaptation occurs over time
The brain processes all stimuli equally
Perception is subjective
What is the absolute threshold?
The smallest difference between two stimuli detected 50% of the time
The minimum amount of stimulus energy needed for detection 50% of the time
The point at which perception begins
The level of attention given to a stimulus
Which of the following is NOT an example of an absolute threshold?
The faintest light a person can see in a dark room
The softest sound a person can hear
The smallest difference between two shades of blue a person can detect
The minimum concentration of sugar in water a person can taste
Which of the following best describes habituation?
The brain filtering out repetitive stimuli
An increase in sensitivity to stimuli over time
The process of transducing stimuli into neural signals
The brain enhancing attention to important stimuli
Sensory adaptation occurs when:
The brain ignores constant stimuli over time
The senses become more sensitive to new stimuli
The brain prioritizes certain stimuli over others
Stimuli are too weak to be detected
Which of the following is an example of sensory adaptation?
Feeling your clothes less after wearing them for a while
Not noticing a clock ticking until someone mentions it
Getting used to the smell of perfume over time
All of the above
What is perception?
The physical process of detecting stimuli
The brain’s organization and interpretation of sensory input
The transmission of neural signals to the brain
The conscious awareness of sensory information
Which of the following is a type of perceptual constancy
Size constancy
Shape constancy
Motion constancy
Color constancy
The tendency to perceive an object as the same shape regardless of its orientation is called:
Size constancy
Shape constancy
Color constancy
Perceptual adaptation
Which of the following is an example of size constancy?
Seeing a car as the same size even when it moves farther away
Recognizing an object regardless of changes in lighting
Seeing a chair from different angles and knowing it’s the same chair
Grouping similar objects together
What do Gestalt principles explain?
How we perceive depth
How we organize visual stimuli into meaningful patterns
How we detect changes in stimuli
How we remember visual experiences
Which Gestalt principle states that objects close to each other are perceived as a group?
Proximity
Similarity
Closure
Continuity
Which principle explains why we see an incomplete circle as whole?
Closure
Continuity
Proximity
Similarity
What is an illusion?
A false sensory experience
A distorted perception of reality
A brain malfunction
A type of hallucination
Which illusion is based on how inward and outward arrows affect our perception of line length?
Müller-Lyer illusion
Ponzo illusion
Ames Room illusion
Motion illusion
Which Gestalt principle states that objects close to each other are perceived as a group?
Proximity
Similarity
Continuity
Closure
What is the key difference between an illusion and a hallucination?
Illusions are real distortions; hallucinations are false perceptions not based on external stimuli
Illusions are caused by brain injury
Hallucinations are real visual errors
Illusions are only seen by people with vision problems
Microsaccades contribute to which visual phenomenon?
Color constancy
Motion illusion
Shape constancy
Figure-ground perception
What is the primary difference between sensation and perception?
Sensation is an unconscious process, while perception is conscious
Sensation is psychological, while perception is purely biological
Sensation is the detection of stimuli, while perception is its interpretation
Perception always occurs before sensation
Which concept explains why two people can perceive the same object differently?
Perceptual constancy
Individual differences in perception
Sensory adaptation
Habituation
Which of the following statements about perception is TRUE?
Perception is always accurate and objective
Perception can be influenced by prior experiences and expectations
Perception is independent of sensation
Perception is solely based on genetic factors
Which of the following best explains why optical illusions occur?
The brain receives incorrect sensory information
The brain misinterprets visual stimuli based on prior knowledge
The eyes are physically incapable of seeing certain details
Optical illusions result from errors in sensation rather than perception
What does perceptual constancy allow us to do?
Detect faint stimuli in the environment
Recognize objects regardless of changes in lighting, distance, or angle
Focus only on important stimuli
Ignore background noise
Which type of perceptual constancy explains why a door appears to stay the same shape even when it is open?
Size constancy
Shape constancy
Brightness constancy
Depth constancy
Which perceptual constancy explains why a white shirt looks white in both dim and bright light?
Shape constancy
Brightness constancy
Size constancy
Motion constancy
Size constancy explains why:
A bright object remains the same color in different lighting
A train appears smaller as it moves into the distance but is perceived as the same size
An object appears to be moving even when it is not
A person’s voice sounds different over the phone
Which Gestalt principle explains why we see continuous patterns instead of broken lines?
Proximity
Similarity
Closure
Continuity
What is the figure-ground relationship in perception?
The tendency to organize objects based on similarity
The ability to distinguish objects from their background
The process of detecting motion
The ability to perceive depth
Which Gestalt principle explains why we group objects that are close together?
Similarity
Proximity
Closure
Continuity
What is the main purpose of perceptual grouping?
To detect movement in the environment
To help organize sensory information into meaningful patterns
To ignore irrelevant stimuli
To enhance sensory adaptation
What is depth perception?
The ability to see colors accurately
The ability to perceive distance and three-dimensional space
The process of identifying shapes
The interpretation of illusions
Which of the following is a monocular depth cue?
Retinal disparity
Convergence
Linear perspective
Binocular disparity
Which depth cue occurs because each eye sees a slightly different image?
Convergence
Retinal disparity
Motion parallax
Linear perspective
Which depth cue explains why parallel lines appear to converge in the distance?
Convergence
Retinal disparity
Linear perspective
Texture gradient
Why do motion illusions occur?
The brain misinterprets signals from the eyes
The eyes fail to detect real motion
Motion perception is purely learned, not innate
The brain relies only on sensory input without interpretation
Which term refers to the tiny eye movements responsible for perceiving motion in a still image?
Binocular cues
Microsaccades
Retinal disparity
Proprioception
