PSY 345 Visual System Worksheet

PSY 345 Week 3 Visual System Worksheet

Week 3 Visual System WorksheetComplete the University of Phoenix Material: Visual System Worksheet.

Visual System Worksheet

The visual system is the part of the central nervous system which gives organisms the ability to process visual detail as sight, as well as enabling the formation of several non-image photo response functions. It detects and interprets information from visible light to build a representation of the surrounding environment. The visual system carries out a number of complex tasks, including the reception of light and the formation of monocular representations; the buildup of a nuclear binocular perception from a pair of two dimensional projections; the identification and categorization of visual objects; assessing distances to and between objects; and guiding body movements in relation to the objects seen. The psychological process of visual information is known as visual perception, a lack of which is called blindness. Non-image forming visual functions, independent of visual perception, include the pupillary light reflex (PLR) and circadian photoentrainment.

This article mostly describes the visual system of mammals, humans in particular, although other “higher” animals have similar visual systems (see bird vision, vision in fish, mollusc eye, and reptile vision).

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Matching

1.     _____ Bill perceived the cover of his book was red even though the light changed in the various rooms in which he read the book.

  1. _____ Mary damaged her cerebral cortex and now perceives the world in black, white, and grey.
  2. _____ Phyllis wears only various shades of purple. Her clothes are many different types of purple, but she only wears ___________ of purple.
  3. _____ The shade of achromatic color stays the same regardless of how much sunlight is reflected.
  4. _____ You go to a lecture and the topic seems to focus on blue-yellow and red-green perception of color. The lecture is likely discussing ______________.
  5. _____ The afterimage is a red heart. This means the image was _____________.
  6. _____ Each receptor mechanism is sensitive to different elements of the spectrum and suggests we need various wavelengths for normal color vision. This is the _____________.
  7. _____ Which color deficiency is likely a genetic transmission?
  8. _____ Monochromats do not have functioning ___________.
  9. _____ Red and blue paints are mixed and the result is purple. This shows the ____________.
  10. _____

_____

_____ There are basic colors, but the ability to perceive a large number of colors depends on _____________, _____________, and _________________.

  1. L____ The edge of an illuminated e-reader next to a dark room is called __________.

 

 

A. Saturation                      B. Hues                 C. Color Constancy                          D. Cones

E. Green              F. Subtractive Color Mixture                       G. Opponent Process Theory of Color Vision

H. Reflectance Edge                        I. Cerebral Achromatopsia                           J. Wavelength

K. Dichromatism                               L. Lightness Constancy                                   M. Intensity

N. Young-Helmoltz Theory of Color Vision

 

Short-Answer

 

In 200 to 300 words, describe the role of Gestalt principles in perceptual organization. Explain how these principles help us organize our world.

 

 

 

 

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