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Sensory receptor
Chemo-
receptors sensitive to changes in chemical concentration
Pain receptors:
detect tissue damage
Thermoreceptors:
respond to temperature differences
Mechanoreceptors:
respond to changes in pressure or movement
Photoreceptors:
respond to light; found in the eye
propioreceptor
Aware of where your body parts are withut looking at them
A sensation
Sensation occurs when sensory receptors detect sensory stimuli.
Activates according to its receptor: damage, heat, pressure, etc.
A perception
Perception involves the organization, interpretation, and conscious experience of those sensations.
projection
Awareness of stimuli
Receptive Fields
What each repect is able to sense.
Specialization
Cones -see red,blue green anad light, not great at senseing motion
Robs- are really good at seeing mothing but they arent good at seeing colos
Fovea:
in the eye
area of concentrated receptors Its high density of cone photoreceptors allows the human eye to focus on the object and the details within the objec
Eye
An organ that allows one to see.
Retna
the light-sensitive layer of tissue at the back of the eyeball. Images that come through the eye’s lens are focused in retina.
Photoreceptors:
Modified neurons, the visual receptor cells
Cones:
Provide sharp images in bright light and color vision (3 colors)
Fovea contains densely packed cones, but no rods