Correlation analysis of EEG rhythms and functional asymmetry of the hemispheres in children with the hyperdynamic syndrome

1992 ◽  
Vol 22 (3) ◽  
pp. 251-258 ◽  
Author(s):  
N. A. Lastochnika ◽  
L. M. Puchinskaya
Keyword(s):  
Correlation Analysis ◽  
Functional Asymmetry ◽  
Eeg Rhythms ◽  
Hyperdynamic Syndrome

scholarly journals Significance of biomechanical indices assessment in orthopedic correction of motor disorders in patients following cerebral stroke

2018 ◽  
Vol 35 (3) ◽  
pp. 9-14
Author(s):  
N. B. Schekolova ◽  
V. A. Bronnikov ◽  
V. M. Ladeischikov ◽  
A. M. Zinoviev
Keyword(s):  
Correlation Analysis ◽  
Motor System ◽  
The State ◽  
Functional Asymmetry ◽  
Cerebral Stroke ◽  
Motor Disorders ◽  
Orthopedic Treatment ◽  
Step Cycle ◽  
Rehabilitation Period ◽  
Individual Variant

Aim. To study the biomechanical peculiarities of orthopedic disorders in patients after cerebral stroke and estimate possibilities for their correction. Materials and methods. One hundred and thirty two persons in the late rehabilitation period after the cerebral stroke were examined. The state of loco-motor system biomechanics was assessed, using the rehabilitation complexes “TRUST-M” and “ST-150”. Results. The late rehabilitation period of stroke was characterized by decrease in walking rate and time, rise in step cycle. Speed of movement was disturbed. Combined pain, spasticity, contracture and functional asymmetry of the extremities length determined the formation of individual variant of patient’s pathological locomotor stereotype. When implementing correlation analysis, marked correlation between the severity of orthopedic disorders and the asymmetry of pelvis and extremities length was detected. To correct biomechanical disorders, it was recommended to use complex orthopedic treatment by means of prosthetic-orthopedic devices, which permitted to move and provided stable holding of extremity segments in the desired position. Conclusion. 1. Biomechanical indices characterize the severity of orthopedic pathology in the late rehabilitation period following cerebral stroke. 2. Biomechanical disorders are connected with decreased walking rate and time, raised step cycle, impaired speed of movement. 3. Timely biomechanical orthopedic diagnosis and adequacy of applying prosthetic-orthopedic devices guarantee efficiency of rehabilitation measures in patients after cerebral stroke.

Microdensitometer—computer correlation analysis of ultrastructural periodicity

1978 ◽  
Vol 36 (2) ◽  
pp. 32-33
Author(s):  
D.R. Ensor ◽  
C.G. Jensen ◽  
J.A. Fillery ◽  
R.J.K. Baker
Keyword(s):  
Correlation Analysis ◽  
Background Noise ◽  
Computer Control ◽  
Optical Diffraction ◽  
Screw Thread ◽  
Straight Line ◽  
Computer Storage ◽  
Correlation Process ◽  
Electron Microscope Image ◽  
Fixed Beam

Because periodicity is a major indicator of structural organisation numerous methods have been devised to demonstrate periodicity masked by background “noise” in the electron microscope image (e.g. photographic image reinforcement, Markham et al, 1964; optical diffraction techniques, Horne, 1977; McIntosh,1974). Computer correlation analysis of a densitometer tracing provides another means of minimising "noise". The correlation process uncovers periodic information by cancelling random elements. The technique is easily executed, the results are readily interpreted and the computer removes tedium, lends accuracy and assists in impartiality.A scanning densitometer was adapted to allow computer control of the scan and to give direct computer storage of the data. A photographic transparency of the image to be scanned is mounted on a stage coupled directly to an accurate screw thread driven by a stepping motor. The stage is moved so that the fixed beam of the densitometer (which is directed normal to the transparency) traces a straight line along the structure of interest in the image.

What Is Left Is Right

2009 ◽  
Vol 14 (1) ◽  
pp. 78-89 ◽  
Author(s):  
Kenneth Hugdahl ◽  
René Westerhausen
Keyword(s):  
Speech Processing ◽  
Information Transfer ◽  
Hemispheric Asymmetry ◽  
Functional Neuroimaging ◽  
Gray Matter Volume ◽  
Functional Anatomy ◽  
Posterior Part ◽  
Functional Asymmetry ◽  
Planum Temporale ◽  
Evolution Of Speech

The present paper is based on a talk on hemispheric asymmetry given by Kenneth Hugdahl at the Xth European Congress of Psychology, Praha July 2007. Here, we propose that hemispheric asymmetry evolved because of a left hemisphere speech processing specialization. The evolution of speech and the need for air-based communication necessitated division of labor between the hemispheres in order to avoid having duplicate copies in both hemispheres that would increase processing redundancy. It is argued that the neuronal basis of this labor division is the structural asymmetry observed in the peri-Sylvian region in the posterior part of the temporal lobe, with a left larger than right planum temporale area. This is the only example where a structural, or anatomical, asymmetry matches a corresponding functional asymmetry. The increase in gray matter volume in the left planum temporale area corresponds to a functional asymmetry of speech processing, as indexed from both behavioral, dichotic listening, and functional neuroimaging studies. The functional anatomy of the corpus callosum also supports such a view, with regional specificity of information transfer between the hemispheres.

The German Strengths and Difficulties Questionnaire (SDQ)

2010 ◽  
Vol 26 (4) ◽  
pp. 256-262 ◽  
Author(s):  
Ulrike Petermann ◽  
Franz Petermann ◽  
Ina Schreyer
Keyword(s):  
Correlation Analysis ◽  
Teacher Ratings ◽  
Screening Instrument ◽  
Preschool Age ◽  
Strengths And Difficulties Questionnaire ◽  
Preschool Age Children ◽  
Discriminant Analyses ◽  
Strengths And Difficulties ◽  
Behavioral Attributes ◽  
And Behavior

The Strengths and Difficulties Questionnaire (SDQ) is a screening instrument that addresses positive and negative behavioral attributes of children and adolescents. Although this questionnaire has been used in Germany to gather information from parents and teachers of preschoolers, few studies exist that verify the validity of the German SDQ for this age. In the present study, teacher ratings were collected for 282 children aged 36 to 60 months (boys = 156; girls = 126). Likewise, teacher ratings were collected with another German checklist for behavior problems and behavior disorders at preschool age (Verhaltensbeurteilungsbogen für Vorschulkinder, VBV 3–6). Moreover, children’s developmental status was assessed. Evaluation included correlation analysis as well as canonical correlation analysis to assess the multivariate relationship between the set of SDQ variables and the set of VBV variables. Discriminant analyses were used to clarify which SDQ variables are useful to differentiate between children with or without developmental delay in a multivariate model. The results of correlation and discriminant analyses underline the validity of the SDQ for preschoolers. According to these results, the German teacher SDQ is recommended as a convenient and valid screening instrument to assess positive and negative behavior of preschool age children.

EEG Rhythms and Neurodynamics Under Cell Phone Radiation

2005 ◽  
Author(s):  
Tullio A. Minelli ◽  
Maurizio Balduzzo ◽  
Madeleine Clifford ◽  
Francesco Ferro Milone ◽  
Valentina Nofrate
Keyword(s):  
Cell Phone ◽  
Eeg Rhythms ◽  
Cell Phone Radiation

Analysis of Maximum Expiratory Flow Volume Curves Using Canonical Correlation Analysis

1985 ◽  
Vol 24 (02) ◽  
pp. 91-100 ◽  
Author(s):  
W. van Pelt ◽  
Ph. H. Quanjer ◽  
M. E. Wise ◽  
E. van der Burg ◽  
R. van der Lende
Keyword(s):  
Correlation Analysis ◽  
Canonical Correlation Analysis ◽  
Canonical Correlation ◽  
Flow Volume ◽  
Non Linear ◽  
Maximum Expiratory Flow ◽  
Expiratory Flow ◽  
Relationship Of ◽  
The Relationship ◽  
Age And Sex

SummaryAs part of a population study on chronic lung disease in the Netherlands, an investigation is made of the relationship of both age and sex with indices describing the maximum expiratory flow-volume (MEFV) curve. To determine the relationship, non-linear canonical correlation was used as realized in the computer program CANALS, a combination of ordinary canonical correlation analysis (CCA) and non-linear transformations of the variables. This method enhances the generality of the relationship to be found and has the advantage of showing the relative importance of categories or ranges within a variable with respect to that relationship. The above is exemplified by describing the relationship of age and sex with variables concerning respiratory symptoms and smoking habits. The analysis of age and sex with MEFV curve indices shows that non-linear canonical correlation analysis is an efficient tool in analysing size and shape of the MEFV curve and can be used to derive parameters concerning the whole curve.

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