Results 301 to 310 of about 389,184 (349)

The mental rotation flap

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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Mental rotation by the blind: Does mental rotation depend on visual imagery?

Journal of Experimental Psychology: Human Perception and Performance, 1976
Congentially 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.
Gloria Strauss Marmor, Larry A. Zaback
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Toward a chronopsychophysiology of mental rotation

Psychophysiology, 2002
In a parity judgment task, the ERPs at parietal electrode sites become the more negative the more mental rotation has to be executed. In two experiments, it was investigated whether a temporal relationship exists between the onset of this amplitude modulation and the moment when mental rotation is executed.
Martin Heil, Bettina Rolke
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Mental rotation, physical rotation, and surface media.

Journal of Experimental Psychology: Human Perception and Performance, 1992
Subjects made mirror-normal discriminations on alphanumeric characters shown in different orientations in the picture plane. Either the characters or the background rotated during stimulus presentation in Experiments 1-3. Character rotation in the direction of mental rotation facilitated mental rotation, whereas rotation in the opposite direction ...
Patrick Cavanagh, Pierre Jolicoeur
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Handedness and Mental Rotation

Perceptual and Motor Skills, 1978
Handedness 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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Sex differences in mental rotation tasks: Not just in the mental rotation process!

Journal of Experimental Psychology: Learning, Memory, and Cognition, 2017
The paper-and-pencil Mental Rotation Test (Vandenberg & Kuse, 1978) consistently produces large sex differences favoring men (Voyer, Voyer, & Bryden, 1995). In this task, participants select 2 of 4 answer choices that are rotations of a probe stimulus. Incorrect choices (i.e., foils) are either mirror reflections of the probe or structurally different.
Alexander P. Boone, Mary Hegarty
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Deconstructing mental rotation.

Journal of Experimental Psychology: Human Perception and Performance, 2014
A random walk model of the classical mental rotation task is explored in two experiments. By assuming that a mental rotation is repeated until sufficient evidence for a match/mismatch is obtained, the model accounts for the approximately linearly increasing reaction times (RTs) on positive trials, flat RTs on negative trials, false alarms and miss ...
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On Mental Rotation in Three Dimensions

Perceptual and Motor Skills, 1997
Real 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, Colin Hamilton, Steven Muncer   +2 more
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Functional Neuroanatomy of Mental Rotation

Journal of Cognitive Neuroscience, 2009
Abstract 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 ...
Michael C. Corballis, Jeff P. Hamm, Branka Milivojevic   +2 more
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Developmental changes in mental rotation

Journal of Experimental Child Psychology, 1980
Abstract Subjects from Grades 3, 4, 6, and college judged whether pairs of stimuli were identical or mirror-image reversals. One stimulus of a pair was presented upright; the other was rotated 0 to 150° from the standard. The pairs were either alphanumeric symbols or unfamiliar, letter-like characters of the type found on the PMA Spatial Ability Test.
Robert Kail, Philip Carter, James W. Pellegrino   +2 more
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