Sensation and perception Flashcards

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1
Q

Sensation meaning

A

Where our sense organs and receptors detect and respond to sensory information.

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2
Q

Perception meaning

A

Where we give meaning to the sensory information.

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3
Q

3 steps in Sensation

A

Reception, Transduction, Transmission

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4
Q

4 steps in taste perception

A

Stimulus, Reception, Transduction, Perception

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5
Q

The sensory organs are?

A

Touch, Smell, Hearing, Taste, Sight

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6
Q

Reception

A

Our sense organs first receive info about a stimulus.

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7
Q

Transduction

A

Raw sensory data received by receptors and is converted to new form to be sent to the brain.

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8
Q

Transmission

A

Sending information to the areas of the brain responsible for for processing sensory information.

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9
Q

Receptive fileds

A

A section of space where a stimulus is present.

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10
Q

What is a Gestalt Principle?

A

Perceive visuals as a whole

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11
Q

4 Gestalt Principle

A

Figure-grounds, Closure, Similarity and Proximity.

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12
Q

Figure-grounds

A

Dividing visuals into a figure which stands out from the ground.

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13
Q

Closure

A

Mentally fill in or ignore gaps in a visual image to see it as a whole.

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14
Q

Similarity

A

See a visual image that has similar features. Colour, shape, size and texture.

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15
Q

Proximity

A

Perceive parts of a visual image which are close together belongs in a group.

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16
Q

Monocular Depth Cues

A

Accommodation, Pictorial Cues

17
Q

Accommodation

A

Automatic adjustments of our eye lens to focus on an object to change how far away the object is.

18
Q

Binocular Depth Cues

A

Convergence and retinal disparity

19
Q

Convergents

A

Detecting depth by changing tension in the eye muscles.

20
Q

The five Depth Perception

A

Linear Perspective, Interposition, Texture Gradient, Relative Size and height in the visual field.

21
Q

Liner perspective

A

The meeting of parallel lines as they go back into the distance to give depth

22
Q

Interposition

A

Overlap, When one abject slightly covers another and the object furthest is the one being covered.

23
Q

Texture Gradient

A

Reduced detail that occurs in a surface as it becomes further away

24
Q

Relative Size

A

To visually see that the object largest in view is closest and the object that is smallest is further away.

25
Q

Influences of Visual Perception

A

Perceptual set, context, motivation, emotional state, culture.

26
Q

Perceptual Set

A

To see something in what we expect to see.

27
Q

Five Basic Taste

A

Sweet, Sour, Savoury, Salty and Bitter

28
Q

Influences on Taste Perception

A

Age, Genetics, Perceptual set, Culture

29
Q

Judgement of flavours

A

Perceptual set, Colour intensity and texture.

30
Q

Stimulus - Taste

A

Chemical molecules combine with saliva on your tongue.

31
Q

Reception - Taste

A

Taste receptors located in taste buds that are grouped within the papillae.

32
Q

Transduction - Taste

A

Convert chemical molecules into signals transmitted to the brain by the facial nerve.

33
Q

Perception - Taste

A

Facial nerve carriers send information to the thalamus then to the gustatory cortex.

34
Q

Age and taste

A

The number of taste buds increase durning childhood and decrease with age.

35
Q

Genetics and taste

A

Make us more or less sensitive to taste.

36
Q

Synaesthesia

A

Stimulation of one sense stimulates another involuntary second sense. Unique to each person and is constant.

37
Q

Retinal disparity

A

Difference between the way each eye sees an object when up close.

38
Q

Height in the visual field

A

The closer an object is to the horizon the further away it is.