Understanding Sensory Thresholds

What is the absolute threshold of sensation?

• The maximum intensity of a stimulus that can be detected 100% of the time.

• The intensity of a stimulus that can be detected 75% of the time.

• The minimum intensity of a stimulus needed to detect it 50% of the time.

• The average intensity of a stimulus detected by most people.

What does the Y-axis represent in the graph of absolute threshold?

• Intensity of the stimulus

• Percentage of incorrect detections

• Percentage of correct detections

• Time taken to detect the stimulus

How is the difference threshold defined?

• The average difference in stimulation detected by most people.

• The maximum difference in stimulation that can be detected 100% of the time.

• The difference in stimulation that can be detected 75% of the time.

• The smallest difference in stimulation that can be detected 50% of the time.

Which factor does NOT influence the absolute threshold?

• Alertness

• Color of the stimulus

• Motivation

• Expectations

What are subliminal stimuli?

• Stimuli that are detected 100% of the time.

• Stimuli that are above the absolute threshold of sensation.

• Stimuli that are below the absolute threshold of sensation.

• Stimuli that are detected 75% of the time.