PSYC 211 Lecture 4: WEEK 4
7 Jul 2016
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Document Summary
The eyes respond to waves of electromagnetic energy between 380 ad 760 nm in length. Damage to the visual region of the brain does not make you blind. The person can see but cannot recognize objects. Hue is an attribute of perceived color (e. g. red) Saturation is the relative purity of the perceived light. Eyes are suspended in the orbit: bony sockets in the front of the skull. The extraocular muscles are attached to the sclera: the tough, outer white of the eye. Six extraocular muscles move and hold the eye in place. Vergence movements keep both eyes fixed on the same target. Rapid, jerky saccadic movements shift your gaze from one point to another. Pursuit movements allow us to maintain a moving object. The cornea is the outer, front layer of the eye. The iris is a pigmented ring of muscles. The lens consists of several transparent layers (the lens focuses on the image)
