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Ted Petit (185)
Chapter 10

Chapter 10 Textbook Notes

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University of Toronto Scarborough
Ted Petit

PSYB65 Textbook notes Chapter 10: Spacial Ability 1 SPATIAL ABILITY Spatial Ability: we use it to process the position, direction, or movement of objects or points in space. Space is a multifaceted construct that includes both real space (what you sense right now) and imagined space (space that you can think about even though you cant directly experience it right now) 6 basic components: Targeting (how well you can throw an object at a target) Spatial orientation (how well you can recognize items when theyre placed in different orientations or directions) Spatial location memory (how well you can remember the location of objects) spatial visualization (how well you can imagine how well pieces of an object would go together) Disembedding (how well you can find figures that are hidden within other pictures) Spatial perception (how well you can determine where horizontal or vertical is in the real world even if you are given distracting information). Hemispheric Representation of Space right hemisphere is specialized for spatial processing. However, lesions to the left hemisphere or bilateral damage results in difficulties with spatial perception. Depth perception: the ability to determine relative position of an object. Divided into 2 types: Local and Global. Local Depth Perception: is the ability to use detailed features of objects point by point to assess relative position (tell the distance between 2 points). Global Depth Perception: ability to use the difference between the information reaching each eye to compute the entire visual scene. Line Orientation : being able to differentiate between the letters d and p. The right visual field is again, advantaged for both tactile and visual assessment of line orientation. But if the lines can be described verbally as the horizontal line, then often a left hemisphere advantage emerges. Motion detection involves activity in the right hemisphere, particularly in occipital, temporal, and parietal areas associated with the processing of visual information. Parietal Lobes beyond the occipital lobes, the information is divided into 2 complementary streams ventral visual stream : is the what pathway useful for identifying objects dorsal visual stream: is the how pathway, seeing how motor acts must be performed to manipulate an object. Dorsal stream receives the information and sends it to area 5 and 7 of the Parietal lobe. Area 5 and 7 is responsible to generate a stable spatial map of the world (tracks moving objects etc), which helps if we wanna pick up an object, or the differences of picking up an apple vs picking up a jello. however, area 5 and 7 can not see color fine definition of an object. Ventral is to the form of the object, and Dorsal is to the spatial spatial location of the object. Frontal Lobes www.notesolution.com
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