Sensation and Perception

1
Sensation and Perception
Modules 5 6
2
Definitions

• Sensation
• Perception
• Thresholds
• Absolute
• ______________ (JND)
• Webers Law

3
Vision

• Rods, Cones, and your Blind Spot
• ________________

4
Vision

• Distance and Depth Perception
• _____________
• Movement
• Texture
• _________________
• Optical Illusions

5
Depth Ambiguity
6
Perceptual Tendencies

• Gestalt Psych
• ____________
• Closure
• ____________
• Similarity
• ____________

7
What is it?We must search for a figure
against a similar background!
After you see it, you wont be able to NOT see
it.
8
Hearing and Sound

• Frequency (or ______) of a sound is measured in
  ______ which means vibrations per second.

9
Hearing and Sound

• Loudness is measured in _______, which really
  measures the energy or pressure of the sound.
• Typical Conversation approx ______
• ___________ 20 db
• ___________ 95 db
• ___________ - 135 db
• A dangerous sound is anything that is _________
  (sound pressure level - SPL) or higher.

10
Hearing and Sound

• The amount of time affects how much damage it
  will cause.
• Listening to _________ _______________ at a
  standard volume level 5, the sound generated
  reaches a level of ______, loud enough to cause
  permanent damage after just ____minutes per day!

11
Taste

• ____ basic tastes?
• Sweet, sour, salty, bitter, ________________
• __________ a meaty/cheesy taste

12
Smell

• Receptors (_____________) located in upper nose.
• Humans have _________ olfactory cells.
  Bloodhound has __________!
• Smells are sent to the temporal lobe AND part of
  the limbic system involved with
  _________________.
• Smells often stir up old __________!

13
Touch

• Basic 4 Skin Sensations Pressure,
  ____________________
• _________ Sense (Pos / Movemt)
• Motion Sense
• Vestibular Sacs ______________
• Pain (a ________ thing)
• Endorphins
• ____________ Limb

14
Factors of Perception

• ____________ (Biased Interpretations)
• _____________ (Smells, sounds, etc)
• Subliminal Perception
• ______________