1. Other Senses Chemical Senses Audition Somatic (kinesthesia/touch/pain)
Smell
Taste
Audition
Somatic (kinesthesia/touch/pain)

2. Sound Pressure Waves

3. Cochlea

4. Pitch
Place Theory: Hair cells at a particular “place” respond most to a particular frequency
Middle and High Frequencies.
Volley Theory: Firing rate of an auditory nerve matches a sound wave’s frequency
Low Frequencies.

5. Place Theory

7. Tonotopic Map
Return

8. Body
Position
Touch
Fast
Slow
Pain

9. Pain Receptors
A-Delta
Fast Pain
Sharp
C Fibers
Slow Pain
Dull/Burning

10. Gate Control Theory Gate Closed Gate Open Spinal Cord Activated:
No Pain
Gate Open
Pain
Spinal Cord
Activated:
Touch (A-Beta)
Brain (Descending)
Endorphins

11. Attention

12. Definition
Focused processing (different than simply being dimly aware)

13. Purpose of Attention
Direct our sensory systems toward certain stimuli.
Select information for processing.
Allocate the mental energy required for processing.
Coordinate several tasks at once

14. Shifting Attention
Overt orienting involves pointing sensory systems at a particular stimulus.
Covert orienting involves shifting attention without moving a muscle.

15. Characteristics Improves mental processing. Takes effort.
Limited/selective (e.g., dichotic listening, cocktail party phenomenon).

16. Cocktail Party Demo
{Class Only}

17. Failures of Attention Inattentional blindness
Dual task interference (Stroop)
Visual neglect
Attention Deficit Hyperactivity Disorder
{Class Only}

18. Return

19. The Stroop Task Name the color of each bar as rapidly as you can
Source: Stroop, J.R. (1935). "Studies of Interference in Serial Verbal Reactions." JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 18,

20. Now, name the color of the INK in which each word is printed as rapidly as you can
Source: Stroop, J.R. (1935). "Studies of Interference in Serial Verbal Reactions." JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 18,
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