Q.1 Which sense is primarily responsible for detecting vibrations and pressure?
Vision
Hearing
Touch
Taste
Explanation - The sense of touch (somatosensation) allows us to detect pressure, texture, and vibrations through receptors in the skin.
Correct answer is: Touch
Q.2 What is the term for the process by which sensory receptors convert stimuli into neural signals?
Perception
Transduction
Sensation
Interpretation
Explanation - Transduction is the conversion of physical stimuli from the environment into electrical signals in the nervous system.
Correct answer is: Transduction
Q.3 The tendency to perceive objects as unchanging despite changes in sensory input is called:
Perceptual Constancy
Figure-Ground
Depth Perception
Selective Attention
Explanation - Perceptual constancy allows us to perceive objects as stable in shape, size, and color, even when sensory information changes.
Correct answer is: Perceptual Constancy
Q.4 Which Gestalt principle explains our tendency to perceive objects that are close together as a group?
Proximity
Similarity
Closure
Continuity
Explanation - The principle of proximity states that elements close to each other tend to be perceived as part of the same group.
Correct answer is: Proximity
Q.5 Which of the following is an example of bottom-up processing?
Recognizing a friend by their face
Reading words automatically
Detecting a faint smell of smoke
Identifying a song from memory
Explanation - Bottom-up processing begins with sensory input and builds up to perception, such as detecting unfamiliar stimuli like a faint smell.
Correct answer is: Detecting a faint smell of smoke
Q.6 The minimum intensity of a stimulus that can be detected 50% of the time is called:
Absolute Threshold
Difference Threshold
Subliminal Threshold
Sensory Adaptation
Explanation - The absolute threshold is the smallest detectable level of a stimulus for a given sensory system.
Correct answer is: Absolute Threshold
Q.7 When sensory receptors become less sensitive to a constant stimulus, it is called:
Sensory Adaptation
Habituation
Perceptual Set
Selective Attention
Explanation - Sensory adaptation occurs when receptors reduce their response to continuous or unchanging stimuli.
Correct answer is: Sensory Adaptation
Q.8 Which sense is most closely linked to memory and emotion?
Hearing
Smell
Vision
Taste
Explanation - The olfactory system has direct connections to the limbic system, making smell strongly linked to memory and emotions.
Correct answer is: Smell
Q.9 Depth perception relies on which of the following cues?
Monocular cues only
Binocular cues only
Both monocular and binocular cues
Neither monocular nor binocular cues
Explanation - Depth perception uses both binocular cues (like retinal disparity) and monocular cues (like size, perspective, and occlusion).
Correct answer is: Both monocular and binocular cues
Q.10 The Ames room illusion demonstrates which aspect of perception?
Depth perception
Size constancy
Color constancy
Motion perception
Explanation - The Ames room illusion manipulates the environment to distort perceived object sizes while the retinal image appears normal, showing the role of context in size perception.
Correct answer is: Size constancy
Q.11 The term 'perceptual set' refers to:
An expectation influencing perception
The tendency to ignore irrelevant stimuli
Grouping similar elements
Adjusting perception to maintain constancy
Explanation - Perceptual set is a mental predisposition to perceive stimuli in a particular way, influenced by expectations or prior knowledge.
Correct answer is: An expectation influencing perception
Q.12 Which illusion involves perceiving a stationary object as moving when surrounded by a moving background?
Phi Phenomenon
Motion Aftereffect
Stroop Effect
Müller-Lyer Illusion
Explanation - The motion aftereffect occurs after staring at a moving stimulus; a stationary object appears to move in the opposite direction.
Correct answer is: Motion Aftereffect
Q.13 The ability to focus on one conversation in a noisy room is called:
Selective Attention
Divided Attention
Subliminal Perception
Sensory Adaptation
Explanation - Selective attention is the cognitive process of focusing on a particular stimulus while ignoring others.
Correct answer is: Selective Attention
Q.14 Which Gestalt principle explains the perception of a smooth continuation of lines or patterns?
Closure
Similarity
Continuity
Proximity
Explanation - The principle of continuity states that humans prefer to perceive continuous patterns rather than abrupt changes.
Correct answer is: Continuity
Q.15 Which sensory modality is measured using the Weber-Fechner law?
Vision
Hearing
Touch
All sensory modalities
Explanation - The Weber-Fechner law describes the relationship between stimulus magnitude and perception across all senses.
Correct answer is: All sensory modalities
Q.16 The term 'figure-ground' in perception refers to:
Differentiating an object from its background
Recognizing faces quickly
Perceiving depth cues
Adapting to repeated stimuli
Explanation - Figure-ground organization allows us to distinguish a central object (figure) from its surrounding area (ground).
Correct answer is: Differentiating an object from its background
Q.17 Subliminal perception refers to:
Perception below the threshold of conscious awareness
Heightened perception during stress
Perception of extreme stimuli
Deliberate ignoring of stimuli
Explanation - Subliminal perception occurs when stimuli influence thoughts or behavior without conscious awareness.
Correct answer is: Perception below the threshold of conscious awareness
Q.18 The ability to perceive the size of objects accurately despite changes in distance is called:
Size Constancy
Shape Constancy
Color Constancy
Depth Perception
Explanation - Size constancy allows an object to appear the same size to us, even if its retinal image changes with distance.
Correct answer is: Size Constancy
Q.19 Which illusion demonstrates the brain's tendency to complete incomplete figures?
Closure
Proximity
Similarity
Continuity
Explanation - The closure principle explains why the brain fills in gaps to perceive complete shapes.
Correct answer is: Closure
Q.20 Which of the following is an example of top-down processing?
Reading a familiar word
Detecting a faint sound
Feeling texture of an unknown object
Seeing light flashes in the dark
Explanation - Top-down processing uses prior knowledge and expectations to interpret sensory input, such as recognizing familiar words quickly.
Correct answer is: Reading a familiar word
Q.21 Which part of the brain is most involved in processing visual perception?
Occipital Lobe
Temporal Lobe
Parietal Lobe
Frontal Lobe
Explanation - The occipital lobe, located at the back of the brain, is the primary center for visual processing.
Correct answer is: Occipital Lobe
Q.22 Which phenomenon explains why two lights flashing in quick succession are perceived as continuous motion?
Phi Phenomenon
Stroboscopic Effect
Motion Aftereffect
Persistence of Vision
Explanation - The phi phenomenon occurs when stationary lights flashing rapidly are perceived as moving, forming the basis of motion perception in films.
Correct answer is: Phi Phenomenon
Q.23 The ability to recognize objects through touch alone is called:
Haptic Perception
Tactile Discrimination
Kinesthetic Sense
Proprioception
Explanation - Haptic perception is the active exploration of objects through touch to recognize their properties.
Correct answer is: Haptic Perception
Q.24 Perception is influenced by both sensory input and:
Cognitive processes
Motor reflexes
Hormonal changes
Sleep patterns
Explanation - Perception is not just sensory input; it is shaped by attention, experience, expectations, and cognitive processing.
Correct answer is: Cognitive processes
Q.25 Which type of visual illusion involves misperception of lines or angles?
Müller-Lyer Illusion
Ponzo Illusion
Ames Room
Motion Aftereffect
Explanation - The Müller-Lyer illusion shows that lines of equal length appear different due to the orientation of arrow-like ends.
Correct answer is: Müller-Lyer Illusion