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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1984-6-5
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pubmed:abstractText |
Subjects were timed as they made judgments about ps and qs (also interpretable as ds and bs) in different angular orientations. Whether these judgments were left-right mirror-image discriminations (b vs. d or p vs. q) or up-down mirror-image discriminations (b vs. p or d vs. q), the subjects' reaction times increased sharply with the angular departure of each letter from its designated normal upright orientation, a fact implying mental rotation. This was so whether the subjects responded with the letter labels themselves (e.g., b vs. d) or with the labels left versus right or top versus bottom. It was again the case when the letters were replaced by nonletter forms, in which event there was also a left visual-field advantage in reaction time. This study is therefore the first to demonstrate a mental-rotation strategy when the canonical forms to be discriminated are up-down mirror images as well as when they are left-right mirror images. In both cases, however, the task requires the ability to tell left from right, and we suggest that this is the critical ingredient that induces mental rotation.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0096-1523
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
10
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
318-27
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6232348-Adult,
pubmed-meshheading:6232348-Dominance, Cerebral,
pubmed-meshheading:6232348-Female,
pubmed-meshheading:6232348-Form Perception,
pubmed-meshheading:6232348-Humans,
pubmed-meshheading:6232348-Male,
pubmed-meshheading:6232348-Orientation,
pubmed-meshheading:6232348-Pattern Recognition, Visual,
pubmed-meshheading:6232348-Reaction Time,
pubmed-meshheading:6232348-Rotation,
pubmed-meshheading:6232348-Visual Fields
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pubmed:year |
1984
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pubmed:articleTitle |
Winding one's ps and qs: mental rotation and mirror-image discrimination.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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