Chapter 3 - Chapter 3 Perception V ision signals are...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3: Perception Vision signals are left/right and top/bottom contralateral 3 Eye myths: Vision is a faithful record ( illusions), vision is passive and our eye sees. * vision assumes 1) light comes from above 2) consistencies (color, size etc) Grid experiment: Grid helps clarify blocky images ( illusion of clarity ), but blurs HD images. Visual agnosia: a deficiency in the ability to recognize visual information despite being able to see; not complete impaired. Associative agnosia: a form of visual agnosia marked by difficulty naming objects; they can reproduce the object by drawing but they can’t identify them. Time spaces: the perceptual experience of time units such as days of the week as occupying spatial representations outside of body. Perception: processing sensory information such that it produces a meaningful understanding of the information. * dependent on both the stimulus and the internal knowledge of observer Perception as a Function of the Environment Gibson’s theory of ecological optics: perception involves directly absorbing the visual information present in the environment. * perception is created mostly by the sensory organs themselves * included observer and environment motion as a fundamental component of perception since most classic theories is based on a fixed monocular perspective * Concerned with real vision first and illusions second; believed illusions were not particularly relevant to everyday life. Focused most of his work on Ambient Optical Array (AOA): all the visual information that is present at a particular point of view* didn’t believe illusions were relevant to real life
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Texture gradients: gradual changes in the pattern of a surface that is normally assumed to be uniform which provides information about surface characteristics such as whether the surface is receding or curved Topical breakage: the discontinuity created by the intersection of two texture gradients Reflection of light also provided information on the smoothness of the surface; rough surfaces reflects light more widely than a smooth surface and vice versa. *this degree of scatter-reflection: degree to which light scatters when reflected from a surface tells us about the nature of the surface Transformation: the change of optical information hitting the eye when the observer moves through the environment Optical flow field: the movement of objects or observer through the environ. changes what is seen. Ex. Edges of car windshield seems to move faster than the center Pattern Recognition : identifying configuration (ex. Cylinder with handle = coffee mug) Differs from Gibsons theory: 1) does not consider the light reflection info; instead it places emphasis on specific objects /patterns 2) focuses on how internal representations affects our perception Recognizing a configuration involves contact of emerging
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 8

Chapter 3 - Chapter 3 Perception V ision signals are...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online