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Back to AI Flashcard MakerPsychology /Psychology - Chapter 4: The Visual System Part 1

Psychology - Chapter 4: The Visual System Part 1

Psychology20 CardsCreated about 1 month ago

This deck covers key concepts related to the human visual system, including the anatomy of the eye, the process of vision, and common visual conditions.

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What is the human visible spectrum?

Narrow range of wavelengths of light that we respond to.
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Key Terms

Term
Definition
What is the human visible spectrum?
Narrow range of wavelengths of light that we respond to.
What is the experience of colour dependent on?
Brightness, Hue, Saturation
What is our perception of an object’s brightness influenced by?
The intensity of the reflected light that reaches our eyes.
What do black objects do vs. white objects in terms of absorbance?
White objects reflect all light and black objects absorb all the light and reflect none.
What is saturation?
Refers to the perceived purity of a colour. Colours that are highly saturated appear more vivid to us.
What is the sclera?
The white of the eye.
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Psychology - Chapter 4: The Visual System Part 1
TermDefinition
What is the human visible spectrum?
Narrow range of wavelengths of light that we respond to.
What is the experience of colour dependent on?
Brightness, Hue, Saturation
What is our perception of an object’s brightness influenced by?
The intensity of the reflected light that reaches our eyes.
What do black objects do vs. white objects in terms of absorbance?
White objects reflect all light and black objects absorb all the light and reflect none.
What is saturation?
Refers to the perceived purity of a colour. Colours that are highly saturated appear more vivid to us.
What is the sclera?
The white of the eye.
What is the iris?
The coloured part of the eye.
What are the pigments responsible for iris colour?
Melanin (brown) and lipochrome (yellowish-brown)
What does the iris do?
Controls how much light enters our eyes.
What is the pupil?
Circular hole through which light enters the eye.
What is the pupillary reflex?
Response of our eyes to decreased the amount of light allowed into them when walking out into a bright stimulus.
When do the pupils dilate?
When we’re trying to process complex information or when we view someone physically attractive (or when you take drugs).
What is the cornea?
Curved, transparent layer covering the iris and pupil. Its shape bends incoming light to focus the incoming visual image at the back of the eye.
What is the lens?
Also bends light but, unlike the cornea, the lens changes in curvature, allowing us to fine tune the visual image.
What is the lens composed of?
Some of the most unusual cells in the body: they’re completely transparent, allowing light to pass through them.
What is accomodation?
In this process, the lenses change shape to focus light on the back of the eyes; in this way, they adapt to different perceived distances of objects.
What is myopia?
Nearsightedness. Results when images are focused in front of the rear of the eye, due to our cornea being too steep or our eyes being too long. It is the inability to see far objects well with an intact ability to see close objects clearly.
What is hyperonia?
Farsightedness. results when the cornea is too flat or our eyes are too short. It is the inability to see near objects well, with an intact ability to see far objects clearly.
What is presbyopia?
The loss of flexibility in the lens due to aging.
What is the retina.
Technically part of the brain. Thin membrane at the back of the eye.