04/10/14 Touch

• Touch- Receptors located in our skin.
• Gate Control Theory of Pain
• Where the spinal cord contains a neurological gate that blocks pain signals or allows them to pass onto the brain.

• Vestibular Sense
• Tells us where our body is orientated in space.
• Our sense of balance.
• Kinesthetic Sense
• Tells us where our body parts are.
• Receptors located in our muscles and joints.
• Perception
• The process if organizing and interpreting information, enabling us to recognize meaningful objects and events.
• Gestalt Philosophy
• The whole is greater than the sum of its parts.
• Figure- Ground Relationship
• The organization of the visual field into objects (figures) that stand out from their surroundings (ground)
• Grouping
• The perceptual tendency to organize stimuli into groups that we understand.

• Depth Perception
• The ability to see objects in three dimensions although the images that strike the retina are two dimensional.
• Allows us to judge distance.
• Binocular Cues
• Retinal Disparity- A binocular cue for seeing depth.
• The closer an object comes to you the greater the disparity is between the two images.