Psychology
Sensation and Perception flashcards
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- What is meant by “Sensation” in this lesson?Sensory processes
- Sensation involves detection and initial processing of stimuli.
- What is meant by “Transduction” in this lesson?Sensory processes
- Transduction converts stimulus energy into neural signals.
- What is meant by “Absolute threshold” in this lesson?Sensory processes
- An absolute threshold is a detection level under specified conditions and probability criteria.
- What is meant by “Difference threshold” in this lesson?Sensory processes
- A difference threshold is the smallest detectable change under defined conditions.
- What is meant by “Sensory adaptation” in this lesson?Sensory processes
- Adaptation changes responsiveness during sustained or repeated stimulation.
- What is meant by “Signal detection” in this lesson?Sensory processes
- Signal-detection analysis separates sensitivity from response tendencies under uncertainty.
- What is meant by “Perception” in this lesson?Perceptual organization
- Perception interprets and organizes sensory information.
- What is meant by “Bottom-up processing” in this lesson?Perceptual organization
- Bottom-up processing builds interpretation from incoming sensory features.
- What is meant by “Top-down processing” in this lesson?Perceptual organization
- Top-down processing uses knowledge, expectations, and context to influence interpretation.
- What is meant by “Figure-ground organization” in this lesson?Perceptual organization
- Figure-ground organization separates a focal object from its surrounding background.
- What is meant by “Depth cue” in this lesson?Perceptual organization
- A depth cue supplies information relevant to apparent distance.
- What is meant by “Perceptual constancy” in this lesson?Perceptual organization
- Constancy supports relatively stable perceived properties despite changing sensory input.
- What is meant by “Selective attention” in this lesson?Attention and interpretation
- Selective attention prioritizes some information over competing inputs.
- What is meant by “Divided attention” in this lesson?Attention and interpretation
- Divided attention distributes processing across tasks, often reducing performance.
- What is meant by “Inattentional blindness” in this lesson?Attention and interpretation
- Inattentional blindness is failure to notice a visible event while attention is engaged elsewhere.
- What is meant by “Change blindness” in this lesson?Attention and interpretation
- Change blindness is failure to detect a change under certain viewing conditions.
- What is meant by “Expectation effect” in this lesson?Attention and interpretation
- Expectations can influence interpretation of ambiguous information.
- What is meant by “Attention limitation” in this lesson?Attention and interpretation
- Attention has capacity and task constraints rather than unlimited simultaneous processing.