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Psychology 5
Chapter 5 Sensation and Reality
Term | Definition |
---|---|
Psychophysics | quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they produce. |
Absolute thresholds | minimum amount of energy that can be detected 50% of the time. |
• Sensation | Information arriving from sense organs (eyes, ears, etc.) |
• Perception | Mental process of organizing sensations into meaningful patterns |
• Visible spectrum | Narrow spread of the electromagnetic spectrum to which the eyes respond |
• Lens | Structure in the eye that focuses light rays |
• Retina | Light-sensitive layer of cells in the back of the eye (photoreceptors) • Easily damaged from excessive exposure to light (e.g. staring at an eclipse) |
• Cornea | Transparent membrane covering the front of the eye; bends light rays inward |
• Hyperopia |