sens sys pt2. Flashcards
(31 cards)
What is additive colour mixing?
A colour system that starts with dark and creates a wider range of colours by adding light.
Used by computer monitors.
Define colour blindness.
A condition in which a person perceives no chromatic colour due to absent or malfunctioning cone receptors or cortical damage.
Often involves inability to distinguish certain colours.
What is colour deficiency?
A condition where people see fewer colours than those with normal colour vision.
Sometimes incorrectly referred to as colour blindness.
What is deuteranopia?
A form of red-green colour dichromatism caused by lack of the middle-wavelength cone pigment.
Define dichromat.
A person with a form of colour deficiency due to the absence of one cone receptor type.
Includes deuteranopes, protanopes, and tritanopes.
What is a monochromat?
A person who is completely colour-blind and sees everything as black, white, or shades of grey.
What is monochromatic light?
Light that contains only a single wavelength.
Describe the Munsell colour system.
A colour space that specifies colours based on three dimensions: hue, value (lightness), and chroma (colour purity).
What is opponent theory?
A theory of colour vision based on three opponent channels: black-white, red-green, and blue-yellow.
What is protanopia?
A form of red-green dichromatism caused by a lack of the long-wavelength cone pigment.
What is subtractive colour mixing?
A colour system that starts with light and creates a wider range of colours by adding pigments
This involves subtracting specific wavelengths from the white light spectrum, typically occurring when mixing paint.
What is a trichromat?
A person with normal colour vision
Trichromats have the ability to perceive a full range of colours due to the presence of three types of cone cells.
What does trichromatic theory propose?
A theory of colour vision based on three classes of receptors (L, M, and S cones)
These receptors correspond to long, medium, and short wavelengths of light.
What is trianopia?
A form of dichromatism caused by a lack of the short-wavelength cone pigment
This condition affects the perception of blue light.
What is a bimodal neuron?
A neuron that responds to stimuli associated with more than one sense.
Define binding in the context of sensory perception.
The process by which features within one modality are combined to create the percept of a coherent object.
What is the binding problem?
The problem of how neuronal activity in many separated areas in the brain is combined to create a perception of a coherent object.
What does ‘concurrent’ refer to in the context of Synesthesia?
The subjective experience in Synesthesia triggered by an inducer stimulus.
Fill in the blank: The easy problem of ________ involves determining the relationship between physiological processes and perceptual experience.
[consciousness]
What is a grandmother cell?
A hypothesized type of neuron that responds only to a very specific stimulus.
Define the hard problem of consciousness.
The problem of determining how physiological processes cause different perceptual experiences.
What is an inducer in the context of Synesthesia?
A term to describe the stimulus that elicits Synesthesia.
What is the mind-body problem?
How do physical processes become transformed into the richness of perceptual experience?
