Introduction to Sensation and Perception

What is sensation in the context of this lesson?

• The process by which we interpret information from the environment

• The process by which we receive information from the environment

• The reaction to physical stimuli in the environment

• The internal representation of external stimuli

Which of the following is NOT listed as a type of stimulus that can be detected by the human senses according to the lesson?

• Light

• Sound

• Electricity

• Chemicals

Which sense is associated with the detection of light?

• Vision

• Hearing

• Taste

• Touch

What is intensity of light experienced as?

• Hue

• Saturation

• Brightness

• Pitch

What aspect of sound does frequency mainly influence?

• Loudness

• Pitch

• Saturation

• Brightness

What is the process of converting energy of a stimulus into neural activity called?

What is the interpretation of information from the environment so that we can identify its meaning known as?

• Sensation

• Perception

• Adaptation

• Transduction

Bottom-up processes are involved in identifying a stimulus by analyzing what?

What are top-down processes in perception?

• Processes that start in the higher brain centers and proceed to receptors

• Processes that involve identifying a stimulus by using past experiences and knowledge

• Processes that are solely based on the stimulus presented

• Processes that occur without any previous knowledge or expectations

What is the role of the human photoreceptors in the eye?

• They are sensitive to sound waves.

• They are involved with color perception only.

• They are sensitive to wavelengths of light energy called the visible spectrum.

• They protect the eye from physical damage.