PSYC 1001 1st Edition Lecture 26 Outline of Last Lecture I. PerceptionII. SelectIII. OrganizeIV. Grouping Outline of Current Lecture I. Organizea. Grouping II. Binocular CuesIII. Monocular CuesCurrent LectureI. Organizea. Groupingi. SOME gestalt principles of grouping.1. Proximity: We group close figures together.2. Similarity: We group similar figures together.3. Continuity: We perceive smooth, continuous patterns rather than discontinuous ones. 4. Closure: We fill in the gaps to create, alike objects.5. Connectedness: We perceive linked objects as a single unit.ii. Depth Perception: Ability to see objects in three dimensions.1. Binocular Cues: Requires two eyes.iii. Retinal Disparities: By comparing the different images from the two eyes,the brain computes distances.1. This term comes from: The greater the difference (disparity) between the two images, the closer the object.2. Convergence: The extent to which the eyes converge inward when looking at an object. a. The closer the object the more the convergence.3. Monocular Cues: Requires only one eye. a. Some of these cues:i. Relative Size: The closer the cue object the bigger it appears. These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.ii. Interposition: If an object partially blocks our view of another object, we perceive it as being closer. iii. Relative Clarity: Hazy objects appear farther away than sharp, clear objects.iv. Relative Height: We perceive objects as higher in our field of vision as farther away.v. Linear Perspective: Parallel lines that appear to converge in the distance.vi. Shadows: The visual system that assumes light comes from above.b. Interpreti. Restored Vision II. Colorsa. Trichromatic Theory: the human retina contains three different receptors for color. i. Most sensitive to ‘red’ wavelengthsii. Most sensitive to ‘green’ wavelengthsiii. Most sensitive to ‘blue’ wavelengths1. Other colors are a combination of the three colors. b. Opponent-Process Theory: Opposing retinal processes excitable color vision.i. Color perception is controlled by the activity of three opponent systems:1. Red/Green2. Blue/Yellow3.
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