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Effect of visual experience on iocational judgements after perspective change in small‐scale space
Author(s) -
LEHTINENRAILO SINIKKA,
JUURMAA JYRKI
Publication year - 1994
Publication title -
scandinavian journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 72
eISSN - 1467-9450
pISSN - 0036-5564
DOI - 10.1111/j.1467-9450.1994.tb00941.x
Subject(s) - psychology , perspective (graphical) , diagonal , space (punctuation) , frame of reference , orientation (vector space) , point (geometry) , cognitive psychology , perception , geometry , mathematics , computer science , physics , quantum mechanics , operating system , neuroscience
Congenitally blind, late blind and blindfold sighted adults overleamed an object‐array within a square frame by touch, and judged, facing the midpoint of the frame, the near/far/left/right locations of objects from sides and diagonally from corners. One‐half were first guided to points (A‐condition), the rest were first asked to imagine themselves as being at points (I‐condition). Group and condition did not, but group and observation point did, interact. Lack of visual experience added to RTs and total times and increased errors especially at diagonal stations. Congenitally blind subjects differed from both late blind and blindfold sighted subjects. However, a section of the congenitally blind subjects attained the level of blindfold sighted subjects. The sequence A‐I speeded up judgements in all groups. Group did not interact with size of space. Congenitally blind subjects reportedly resorted to holistic representations, but had specific limitations in using them at diagonal stations. Orientation skills of the congenitally blind in far space could be improved by practising perspective taking in near space.