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At least 523 records · Page 29Linked to original sources
PubMed2005

Mirror and camera self-focusing effects on complexity of private and public aspects of identity.

Complexity of private and public aspects of identity was investigated as a function of mirror and camera self-focusing. Using a sorting task to assess self-complexity, complexity of private but not public aspects of identity was greater under mirror self-focusing than under camera or no self-focusing, and complexity of public but not private aspects of identity was greater under camera self-focusing than under mirror or no self-focusing. The findings complement and extend previous research on the articulation of self-schemas as a function of self-focusing and self-consciousness.

Adolescent↗
PubMed1981

Correlations of scores on embedded figures and mirror tracing with preclinical technique grades and PMAT scores of dental students.

For 20 dental students the relationships of field dependency, scores on the dental admissions test, grades in technique courses, and time and error scores on mirror-tracing tests were studied. Significant correlations (-.48, -.58, -.65) were found between field-dependency scores and scores on the perceptual-motor abilities subtest of the Dental Admissions Test and between mirror-tracing test and pre-clinical operative grades (-.53). These preliminary results indicate that study of the perceptual-cognitive styles of dental studies is warranted to evaluate the potential utility of these measures in counseling and admissions. The mirror-tracing tests appear to have potential advantages as objective measures of psychomotor skills and learning ability.

Achievement↗
PubMed1982

Reverse-process sinistral cursive in dextrads: a mirror-writing variant.

A loop executed clockwise in conventional (left to right) cursive writing is performed counterclockwise in classical (right to left) mirror writing. This rotational reversal appears integral to and inseparable from the mirror-writing phenomenon. Yet in Reverse Process Sinistral Cursive, which proceeds left to right, the rotational component escapes its embeddedness in the conventional mirror form and finds individual, overt expression. The product represents a compromise between the competing and often contradictory demands of innate rotational tendencies, legibility, continuity of movement, and conventional writing style. In dextrads, it reflects difficulty in meeting the unaccustomed demands of translating right-sided movement patterns into left-handed writing performance.

Dominance, Cerebral↗
PubMed2003

Mirror-reflecting a picture of an object: what happens to the shape percept?

Although a two-dimensional picture never fully specifies the actual layout of the depicted three-dimensional scene, one is still able to make a three-dimensional interpretation. When a picture is mirror-reflected, the range of plausible scenes possibly corresponding with the depicted scene has not changed with respect to the original depiction. We were curious to find out whether the inherent picture ambiguities would be solved the same way or differently. Participants performed local attitude settings on three sets of pictures: (1) original pictures, (2) left-right mirrored pictures, and (3) up-down mirrored pictures. Pairwise comparison of the pictorial reliefs of the depicted object, reconstructed from the raw settings, revealed dissimilarities. The differences, however, could be drastically diminished by conducting an affine transformation correction taking into account not only the depths, but also the picture plane coordinates. The inherent ambiguities seemed thus to be solved differently between conditions. By factoring out different solutions to the ambiguities, the pictorial reliefs were found to be equivalent.

Adult↗
PubMed2004

Depth rotation and mirror-image reflection reduce affective preference as well as recognition memory for pictures of novel objects.

In two experiments, the identification of novel 3-D objects was worse for depth-rotated and mirror-reflected views, compared with the study view in an implicit affective preference memory task, as well as in an explicit recognition memory task. In Experiment 1, recognition was worse and preference was lower when depth-rotated views of an object were paired with an unstudied object relative to trials when the study view of that object was shown. There was a similar trend for mirror-reflected views. In Experiment 2, the study view of an object was both recognized and preferred above chance when it was paired with either depth-rotated or mirror-reflected views of that object. These results suggest that view-sensitive representations of objects mediate performance in implicit, as well as explicit, memory tasks. The findings do not support the claim that separate episodic and structural description representations underlie performance in implicit and explicit memory tasks, respectively.

Affect↗
PubMed1976

[I. A mirror to reflect].

To explain the specular permutation of the right and the left an adult subject has recourse continually to expression--image. An elementary optical study demonstrates that explanation leads to metamorphose the flat-mirror in a lentil. In fact the operation truth-fully realized by the mirror is an antero-posterior rotation of subject causing necessary but secondary a couple right left rotation. The unvariance of this behaviour and these false answers authorizes to represent the mirror like an operator motiving the subject's identity without we understand the utmost reason. A second memory will thy to give an explanation of that fact to start from a symbiosis between the breuero-freudian theories and the piagetian concept.

Child↗
PubMed2000

[A case with symptomatic epilepsy and mirror movement due to unilateral schizencephaly].

Schizencephaly is an extremely rare congenital disease caused by abnormal neuronal migration. The etiology of schizencephaly is not established but vascular disturbance in early childhood could cause this condition. We have cared of a patient with schizencephaly. The patient was 47 year old male. He had focal motor seizure with secondary generalization. Neurological examination revealed, mild left hemiparesis, left pyramidal signs with no sensory impairment, left hemiatrophy, and mirror movement. MRI findings showed schizencephaly, open lip type(type II) in right cerebral hemisphere. His epileptic seizure was controlled by administration of sodium valproate. The possible mechanism of this mirror movement in his left hand and leg could be reorganization of non-affected brain and disinhibition on homolateral pyramidal tract in non-affected left cerebral hemisphere by the transcallosal inhibitory pathyway from affected right cerebral hemisphere. Sodium valpronate can not suppress this mirror movement.

Anticonvulsants↗
PubMed2003

[The manufacture of pelvic mirror physical model using rapid prototyping].

OBJECTIVE: To study the manufacture of pelvic mirror physical model using rapid prototyping and the accuracy of the models. METHODS: The pelvic CT images were acquired by spiral CT thin slice scanning, and the slicing data of pelvis were created from these CT images by computer image-processing. Then the pelvic mirror physical model was manufactured using rapid prototyping. The model of a cadaver pelvis and the pelvic model of an experimental dog were manufactured respectively using the method above, and the accuracy of the models were examined. RESULTS: The model of the cadaver pelvis manufactured with this method was very similar to the cadaver pelvis. So was the pelvic model of the experimental dog. CONCLUSION: The manufacture of pelvic mirror physical model using rapid prototyping was feasible, and the models were quite accurate.

Animals↗
PubMed2002

[Study on the corrosion of Yuan Dynasty bronze mirror by Raman spectrum].

Over the past 17 years, Raman microscopy has proven to be a valuable tool for the non-destructive evaluation of pigments in artwork and artifacts. Here Raman microscopy and electro probe technique were used to identify the corrosion products and their locations on and within of ancient Yuan Dynasty bronze mirror from Lufeng of Yunnan province. The most corrosive compounds are CuCO3.Cu(OH)2 and Cu2O. There is a thin layer of Fe-Al alloy on bronze mirror, which can protect the mirror from corrosion. The Raman microscopy is shown to be a useful tool to complement more traditional characterizations such as scanning electron microscopy and x-ray energy-dispersive spectrometry in the analysis of metal artifacts.

Carbonates↗
PubMed1992

[Mirror movements. Preliminary therapeutic study].

BACKGROUND: Mirror movements are a specific type of synkinesis. The pathogenesis is unknown. Three types have been identified: 1) a hereditary form, 2) a form associated with other neurological diseases, 3) a sporadic form, as is this case. CASE REPORT: A girl was born at term after cesarean section for fetal anoxia. Psychomotor development seemed normal, but mirror movements of fingers, hands, wrists and forearms were noticed when she was 8-9 months old. There were no other neurological manifestations and the imaging techniques were normal. Rehabilitation was begun when she was 20 months old. The girl is now 4 1/2 years old and writes, draws and cuts up normally. CONCLUSIONS: Mirror movements that are not associated with other neurological disorders usually remain unchanged and can be a professional handicap for adults. Prolonged rehabilitation offers a good functional prognosis.

Dominance, Cerebral↗
PubMed2003

[Gel with provitamin B5 applied during tests with the Goldmann triple-mirror].

PURPOSE: The objective of the study was, to determine whether the new medicine developed in the Faculty of Pharmacy of the Medical University of Gdańsk in the form of gel containing 5% of provitamin B5, was a good agent for applying into the contact surface of the Goldmann triple-mirror, while examining the retina. MATERIAL AND METHODS: 42 people were subject in the observation. 84 eyes, which had not been operated yet, were tested. One eye was examined by using the gel with provitamin B5/proper name D--panthenol/, the other eye by applying 3% methylcellulose. Congestion of conjunctiva, oedema and defects of cornea epithelium, and substance transparency as well as surface adherence were indicated. RESULTS: One obtained the statistical significance proving the lesser congestion effect, while applying D--panthenol. Better adherence of the preparation to the cornea surface and to the triple-mirror was noticed, which considerably improved the procedure of the very examination. D--panthenol protected and regenerated cornea epithelium. CONCLUSION: The gel containing provitamin B5 is a safe and convenient agent for application during the examination with a triple-mirror.

Contact Lenses↗
PubMedDate not supplied

Ingestion of dental mirror fragments: report of case.

A case is reported in which one treated pediatric patient gave his plastic, disposable dental mirror to a 2.5-year-old sibling, who while playing chewed on the mirror and the mirrored glass surface broke in the child's mouth. After thorough examination including x-rays, the patient was released with no further complications. Potentially severe injuries could have occurred, resulting in legal liabilities.

Child, Preschool↗
PubMed1990

A technique for the transfer of retinal images from the mirror of a contact lens.

In 1965 Rene Dufour developed a method for the direct transfer of retinal images reflected in the mirrors of a contact lens to retinal drawing paper. The retinal images are drawn on the reverse side of semi-transparent paper that is oriented such that the sector of the retinal diagram is aligned with the mirror of the contact lens that is viewing the sector. The images can be drawn exactly as they are seen in the mirror. When the drawing is viewed right-side-up over a light box, the detail is oriented correctly. The method is valuable for the precise localization of retinal breaks that are discovered through the slit-lamp microscope but are too small to be seen by indirect ophthalmoscopy. The breaks can be oriented in relation to other fundus detail large enough to be seen through the ophthalmoscope and then found at the operating table without the aid of a microscope.

Contact Lenses↗
PubMed1989

A handy mirror for self-catheterization in female patients.

We have developed a handy mirror for self-catheterization in female patients. This mirror, as large as a credit card, is made of finely polished stainless steel, and a 12 Fr catheter can be easily attached to or detached from the mirror.

Female↗
PubMed1984

Mirror masturbation.

A case is presented of an analytic patient who reported adolescent and adult mirror masturbation in the context of a struggle for psychic differentiation and separation from his mother. A model is elaborated in which magical manipulation and transformation of the self- and object images are facilitated by masturbatory mirror play. The role of impersonation and transformation as another man or woman is explored. Visual hunger, traumatic overstimulation, incestuous games, and fear of actually committing incest with a seductive parent are proposed as genetic contributants . Mirror masturbation is understood as a dramatic play which defends against castration anxiety and attempts to master childhood sexual overstimulation by active repetition and re-creation.

Adult↗
PubMed1982

[Radioautographic study of protein synthesis in the neurons of the epileptogenic mirror focus in the rat brain. I. The stage of the occurrence of steady convulsive activity and the anterior parietal area of the cortex].

Epileptogenic mirror focus was produced in the left parietalis area of rat's brain by cobalt implantation into the controlateral hemisphere. A synthesis of protein was measured autoradiographically in layers III and V neurons of the parietalis anterior area, the lateralis thalamus nucleus of epileptogenic mirror focus on day 14 after cobalt implantation. The incorporation of L-proline-5-3H was found by the increase by 41, 31 and 6% in layer V neurons, layer III neurons and thalamus neurons, resp. Some disturbance of correlation was found between protein synthesis and its expenditure in neurons of the epileptogenic mirror focus. The disturbance was most pronounced in layer V and thalamus neurons.

Animals↗
PubMed1983

Surgical correction in mirror-image atrial arrangement or left atrial isomerism with systemic venous return to the left-sided atrium.

We have recently encountered three patients with the hemodynamics of complete transposition accompanied by unusual atrial arrangements. The flow patterns produced all required correction by means of a "mirror-image" Mustard operation. Two of the patients had left atrial isomerism as evidenced by the finding of bilateral atrial appendages of morphologically left type. In both patients the systemic venous return was to the left-sided atrium and the pulmonary venous return to the right-sided atrium. The major effect of the isomerism was to reduce the volume of the left-sided chamber. This initially produced concern, since we now try to avoid enlargement of the pulmonary venous atrium when performing Mustard's operation. However, despite the small volume, it was possible to place the baffle without producing postoperative pulmonary or systemic venous obstruction. The other significant effect of left atrial isomerism is to deviate the position of the sinus node, but thus far we have not encountered any postoperative rhythm problems. The third patient had a mirror-image arrangement of the atrial chambers and the venous connections (situs inversus), and the anatomy was corrected by straightforward mirror-image reversal of our current technique for Mustard's procedure.

Child↗
PubMed1982

Excessive mirror movements and aggression.

The presence of mirror movements was assessed as part of the overall neurological examination of 170 inpatients in a child psychiatric unit. It was found that when patients were divided by presence or absence of problems of repetitive aggressiveness, the aggressive patients, particularly the subgroup of aggressive male patients, had significantly more mirror movements than nonaggressive patients. The results persisted after the exclusion of patients with focal neurological or electroencephalographic abnormalities. It is hypothesized that mirror movements and repetitive aggressive behavior may both result from a delay in the development of normal inhibitory mechanisms.

Adolescent↗