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Mental rotation in schizophrenia
Consciousness and Cognition, 2006Motor imagery provides a direct insight into action representations. The aim of the present study was to investigate the level of impairment of action monitoring in schizophrenia by evaluating the performance of schizophrenic patients on mental rotation tasks.
Frédérique, de Vignemont +6 more
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Journal of Plastic, Reconstructive & Aesthetic Surgery, 2011
Two types of random pattern rotation flaps around the chin are described for the closure of small to moderate defects of the lateral chin. Over an 18 month period (September 2007-April 2008) three patients with a mean age of 74 years had skin cancers excised as an outpatient under local anaesthetic, leaving skin defects from 2.0×1.9 cm to 1.9×2.9 cm ...
R J I, Colville, Romil, Patel
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Two types of random pattern rotation flaps around the chin are described for the closure of small to moderate defects of the lateral chin. Over an 18 month period (September 2007-April 2008) three patients with a mean age of 74 years had skin cancers excised as an outpatient under local anaesthetic, leaving skin defects from 2.0×1.9 cm to 1.9×2.9 cm ...
R J I, Colville, Romil, Patel
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Functional Neuroanatomy of Mental Rotation
Journal of Cognitive Neuroscience, 2009Abstract Brain regions involved in mental rotation were determined by assessing increases in fMRI activation associated with increases in stimulus rotation during a mirror-normal parity-judgment task with letters and digits. A letter–digit category judgment task was used as a control for orientation-dependent neural processing unrelated ...
Branka Milivojevic +2 more
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What is rotated in mental rotation?
Journal of Experimental Psychology: Learning, Memory, and Cognition, 1984Two hypotheses regarding mental rotation were contrasted. If subjects rotate each stimulus image to the upright (the image rotation hypothesis), then response time should depend solely on the extent of angular deviation from the upright. But if subjects rotate their frame of reference to match that of the disoriented stimulus (the frame rotation ...
A, Koriat, J, Norman
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Mental rotation by the blind: Does mental rotation depend on visual imagery?
Journal of Experimental Psychology: Human Perception and Performance, 1976Congentially blind adventitiously blind, and blindfolded sighted adults made same-different judgments of pairs of tactile forms. Two forms were presented in the same orientation, or one form differed from the other by a clockwise rotation of 30 degrees, 60 degrees, 120 degrees, or 150 degrees.
G S, Marmor, L A, Zaback
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Handedness and Mental Rotation
Perceptual and Motor Skills, 1978Handedness and mental rotation test scores were examined by sex and generation for 801 individuals in 200 families. An orderly relationship between bilateralization of function on the hand preference task and mental rotation test scores was found.
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Mental rotation in a commissurotomized subject
Neuropsychologia, 1989The commissurotomized subject L.B. showed a strong right-hemispheric advantage on a task requiring him to judge rotated letters normal or backward, but a left-hemispheric advantage in a task requiring discrimination of the same letters, implying that the right-hemispheric advantage has to do with mental rotation.
M C, Corballis, J, Sergent
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Mental rotation: an examination of assumptions
WIREs Cognitive Science, 2017Since first presented by Shepard and Metzler, Science 1971, 171: 701–703, mental rotation has been described as a rotary transformation of a visual stimulus allowing it to be represented in a new orientation. For a given stimulus, the transformation is thought to occur at a constant speed, though speed may vary between stimuli; three‐dimensional ...
Jordan A, Searle, Jeff P, Hamm
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On Mental Rotation in Three Dimensions
Perceptual and Motor Skills, 1997Real three-dimensional models and three-dimensional images were used in a test of mental rotation. Although the 33 men performed better than the 33 women when presented three-dimensional images (14.4 and 11.2), this sex difference disappeared when real models were used (17.5 and 17.3).
W, McWilliams +2 more
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Mental Rotation by Neural Network
2009 Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2009This paper proposes a new and compact method for object image retrieval fusing Dominant Colors (DCs) and embedded Markov chain concepts. This proposed method uses combined color-texture features which are characterized in terms of their spatial interaction or interrelationship properties, modeled by means of a set of embedded Markov chains, each ...
Toshihiko Sasama +3 more
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