tak - perception
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Sense perception and knowledge Our senses connect us with the world around us “Everyone takes the limits of their own field of vision for the limits of the world” Schopenhauer. TaK - Perception. for a minute - be still …… What can you feel? for another minute - be still …… - PowerPoint PPT PresentationTRANSCRIPT
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TaK - Perception
Sense perception and knowledge
Our senses connect us with the world around us
“Everyone takes the limits of their own field of vision for the limits of the world”
Schopenhauer
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TaK - Perception
for a minute - be still ……What can you feel?
for another minute - be still ……What can you hear?
for a final minute - be still ……What can you smell?
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TaK - Perception
Cosmic RaysX Rays
UV LightInfra Red
RadarTV & Radio
Frequency (Hz)
Visual Window
10 22 1020 1018 1016 1014 1012 1010 108 106 104 102 100
Our senses are limited: Light Waves
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TaK - Perception
Highest Voice
Frequency (Hz)
Audio Window
10 22 1020 1018 1016 1014 1012 1010 108 106 104 102 100
Lowest Voice
Our senses are limited: Sound Waves
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TaK - Perception
Bloodhound: “A nose with a dog attached”
• 230 million olfactory cells compared to 5 million in humans
• 1000 times better sense of smell than humans
• Have been known to be able to track a scent for over 100 miles
Our senses are limited: Smell
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What is in the mind and what is in the world?
e.g. Think about physical sensation (Touch)….
• You plunge your hand into a bucket of ice cold water – for a moment you aren’t sure if it is hot or cold …
• You plunge your hand into a bucket of hot water – is the pain in your hand, or in your mind?
TaK - Perception
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TaK - Perception
Sensation – which is provided by the world
Interpretation – which is provided by the mind(external stimuli + mental processes)
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TaK - Perception
Interpretation: Understanding what we see - Coherence
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TaK - Perception
In our everyday life, we are not usually aware of our minds interpreting the sensations
that flood into our senses ....
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You are walking down a dark alley ... footsteps behind you …
Imagination, Context, Expectation and Sense Perception
affect the way we interpret sense data
TaK - Perception
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Interpretation – finding meaning in what we see
TaK - Perception
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Interpretation
TaK - Perception
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Visual Grouping
TaK - Perception
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TaK - Perception
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TaK - Perception
The mental construction of reality
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Sensory Perception is selective: What the eye saw….
TaK - Perception
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TaK - Perception
Sensory Perception is selective: What the camera saw….
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Awareness test
TaK - Perception
Person Swap
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TaK - Perception
“It’s not what you look at that matters, it’s what you see.” H.D. Thoreau
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TaK - Perception
Look at the following and describe how they might be seen through the eyes of the following people:
1. A child dying in poverty as seen by a doctor, an economist, a social worker, the child’s father
2. A sunset as seen by a religious figure, a physicist, a painter, a farmer
3. A tree as seen by a biologist, a logger, an environmentalist, a carpenter
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ToK - Perception
Sense Perception is an important source of knowledge but there are reasons for treating it with caution:
• We may misinterpret what we perceive• We may fail to notice something• We may misremember what we have perceived• Sensory perception is selective• Our senses have limitations• Experience creates expectations• Subjective factors – interests, moods – affect
sensory perception