Distortions of perception

Question 1

Gustation

What are the Psycho-Social factors on taste?

Answer 1

Taste Aversion (classical Conditioning)
Flavour (Combination of Smell, Appearance, Texture, and Temperature with Taste)
Perceptual Set in Gustation
o Direct experience
o Colour and Colour Intensity
o Texture
o Packaging and Labelling

Question 2

Why does the Muller Lyer Illusion occur?

Answer 2

Because our brain misinterprets the length of the line
Explanataions include : The depth cue explanation, the size constancy explanation, and the conflicting cues explanation.

Question 3

Why does the Ames Room Illusion occur?

Answer 3

Because the observer does not have the depth cues abailable to work out the real difference in distances between the two corners, the equal-sized retinal images of the corners are interpreted as equal size. This produces an illusion of a rectangular room.

Question 4

What is visual Agnosia?

Answer 4

Agnosia is characterised by loss or impairment of the ability to recognise and identify objects, persons, sounds or other sensory stimuli using one or more of the senses despite otherwise normally functioning senses.

Visual Agnosia is loss or impairment of the ability to recognise visual stimuli. In particular, people with visual agnosia have difficulty recognisisng familiar objects and possibly faces. These difficulties are not related to sight, loss of memory or language.

Question 5

What is synthesia?

Answer 5

Synaesthesia is a perceptual experience in which stimultation of one sense produces additional sensations in another. The experience associated with the additonal sensations ‘adds’ to the overall perceptual experience without replacing the original sense

Question 6

What are the characteristics of synaesthesia?

Answer 6

• Involuntary
• Automatic
• Difficult to suppress
• vivid
• highly memorable
• Consistent

Question 7

What is spatial Neglect?

Answer 7

Spatial neglect is a neurological disorder whereby individuals are unable to notice anything either on their left or right side even though there may be no sensory loss.

Question 8

How does spatial Neglect relate to attention?

Answer 8

Spatial Neglect is not a sensory issue, and simply refers to the inability to notice (attend) to given stimuli.