Perceived size and perceived direction: The interplay of the two descriptors of visual space
Result description
The stimulus in the outdoor psychophysical experiment was formed by two rods placed on the ground plane over a range of distances and orientations. Observers estimated its size and direction by positioning the third rod to form an evenly spaced collineartriple of rods. The data revealed interesting similarities between the profiles of the deviations in both judgments: for size judgments, the variability of the responses was least when the targets were at a frontal orientation and gradually increased asthe orientation approached the medial plane. For direction judgments, the variability of the responses was least when the stimuli were aligned with the observer?s line of sight and gradually increased as the orientation approached the frontoparallel plane. The finding of inverse relationship between the precision of size and direction judgments is interpreted as a consequence of the unequal precision in localisation between the frontal and in-depth dimensions of visual space.
Keywords
visual spacespatial descriptorssize judgmentsdirection judgmentsparameterization
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Perceived size and perceived direction: The interplay of the two descriptors of visual space
Original language description
The stimulus in the outdoor psychophysical experiment was formed by two rods placed on the ground plane over a range of distances and orientations. Observers estimated its size and direction by positioning the third rod to form an evenly spaced collineartriple of rods. The data revealed interesting similarities between the profiles of the deviations in both judgments: for size judgments, the variability of the responses was least when the targets were at a frontal orientation and gradually increased asthe orientation approached the medial plane. For direction judgments, the variability of the responses was least when the stimuli were aligned with the observer?s line of sight and gradually increased as the orientation approached the frontoparallel plane. The finding of inverse relationship between the precision of size and direction judgments is interpreted as a consequence of the unequal precision in localisation between the frontal and in-depth dimensions of visual space.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
AN - Psychology
OECD FORD branch
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Result continuities
Project
GPP407/10/P566: Relationship between physical and visual space in different experimental settings
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Perception
ISSN
0301-0066
e-ISSN
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Volume of the periodical
40
Issue of the periodical within the volume
8
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
953-961
UT code for WoS article
000297141700006
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
AN - Psychology
Year of implementation
2011