Behavioral Science 2.2 Flashcards
Sclera
Structural layer also the white of the eye
choroidal Vessels
between the sclera and retina
Retina
Contains photo receptors the transduce light into electrical signals
Anterior chamber
Space outside of the Iris
Posterior chamber
Space between the iris and the lens
Cornea
Clear dome that focuses light onto the lens
Dilator pupillae
Opens the Iris under sympathetic stimulation
Constrictor pupillae
Muscle that constricts the people under Parasympathetic stimulation
Ciliary body
Connects the cord to the Iris and produces aqueous humor
Aqueous humor
The solution that bass the front part of the eye
Canal of schlemm
Drains aqueous humor
Lens
Controls the refraction of incoming light shining onto the retina
Ciliary muscle
Controls the shape of the lens
Suspensory ligament
Connects the ciliary muscle to the lens
Vitreous humor
Transparent gel that supports the retina
Retina and Duplexity
The retina contains two types of photo receptors specialized for light/dark detection and for color detection
Cones
Photo receptors on the retina that detect color(6 million) three types of cones detecting short medium and long wavelengths of light
rods
Sense light or darkness using a Single pigment rhodopsin
Fovea
Central Point in the eye or light is focused contains a high concentration of cones moving away from this point concentration decreases
Bipolar cells
Connect rods and cones and highlight gradients between nearby photo receptors
Ganglion cells in the eye
Collect signals from bipolar cells group together to form the optic nerve
Amacrine And horizontal cells
Receive inputs from multiple retinal cells in the same area and accentuate slight differences between the visual information.
Optic chiasm
Crossover and separation of the visual fields(right side of both eyes go to the same place and left side of both eyes at the same place)
Optic tracts
Nerve pathways after the chiasm
Projection areas in the brain for visual processing
Lateral geniculate nucleus temporal and parietal lobe‘s and the visual cortex of the occipital lobe
Parallel processing
Tenuously analyzing color shape in motion and comparing it to memory to determine different events or objects.
parvocellular cells
Key in shape detection. Hi color spatial resolution only work with stationary or slow moving objects as they have a low temporal resolution
Magnocellular cells
High temporal resolution and low spatial resolution.
