Sensation versus Perception

What is the term for the process by which sensory information is converted into neural signals?

• Transmission

• Transduction

• Transformation

• Transition

Top-down processing is primarily influenced by:

• External stimuli

• Previous experiences and expectations

• Sensory adaptation

• Absolute thresholds

The (a)   threshold is the minimum amount of stimulus energy required for detection 50% of the time.

• Sensory
• Carpentered
• Subliminal
• Perceptual
• Absolute

(a)   occurs when sensory receptors detect information but it is not consciously perceived.

• Absolute
• Sensory adaptation
• Carpentered
• Subliminal
• Conscious perception

Match the following types of processing with their descriptions.

• Processing driven by sensory input from the environment.

• Subliminal

• Processing that occurs outside the central focus of attention.

• Bottom-up

• Processing that is not influenced by context or prior knowledge.

• Top-down

• Processing influenced by prior knowledge and expectations.

• Absolute

• Processing that occurs below the threshold of conscious awareness.

• Peripheral

___ adaptation occurs when sensory receptors become less sensitive to constant stimuli.

• Visual

• Sensory

• Subliminal

• Carpentered

• Absolute

Inattentional blindness occurs because:

• Sensory receptors fail to detect stimuli

• The brain is overloaded with information

• Attention is focused on a specific task

• Stimuli are below the absolute threshold

(a)   is an example of transduction.

• Sensory adaptation
• Transduction
• Perceptual constancy
• Absolute threshold

What is the smallest difference in stimulus intensity that can be detected?

• Absolute threshold

• Sensory adaptation

• The smallest difference in stimulus intensity that can be detected

• Perceptual constancy

Which factor influences perception based on previous experiences and expectations?

• Sensory adaptation

• Previous experiences and expectations

• Absolute threshold

• Perceptual constancy