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1

X-marks: Too simple to be useful?

100%
Marquis R., Hicks T., Mazzella W. D.
Nowa kodyfikacja prawa karnego
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2018
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vol. 49
103-110
EN
This paper presents a case illustrating the value that can be elicited from simple handwritten entries such as X-marks. An experimental study was carried out for the case needs, where X-marks were collected from a population of 52 writers and classified ac­cording to the stroke direction. To fulfil the recommendations of the ENFSI guideline on evaluative reporting in forensic science, the results of this study were used to quantita­tively assess handedness of the writer of the questioned X-mark.
2

Writing with non-dominant hand: left-handers perform better with the right hand than right handers with the left

100%
Laskowski K., Henneberg M.
Anthropological Review
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2012
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vol. 75
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issue 2
129-136
EN
Adult volunteers (7 females, 7 males) aged between 19 and 51 years, 7 right-handers and 7 left-handers, were asked to complete re-training writing tasks by using their non-dominant hand over 10 consecutive days. It is possible for adults to learn quickly to write legibly with their non-dominant hand. Left handers have a higher legibility score initially although right-handers improved with training more than left-handers. Individual’s performance was unrelated to age and sex in the small sample studied.
3

The influence of the boxing stance on performance in professional boxers

86%
Sorokowski P., Sabiniewicz A., Wacewicz S.
Anthropological Review
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2014
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vol. 77
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issue 3
347-353
EN
In boxing, athletes choose between two strategies: the orthodox stance characteristic of right handed competitors, or the southpaw stance characteristic of left-handers. Despite a conviction popular among the practitioners of this sport that fighting against a southpaw opponent constitutes a handicap, the effectiveness of the type of stance has so far not been examined. We extracted the statistics of the top twenty active male professionals boxing in each of the seventeen weight divisions. Out of the 340 boxers who composed our group, 75% used the orthodox stance and 25% were southpaw. Generally, we found that boxing stance had no effect on the percentage of 340 top professional boxers’ victories. However, both the southpaw and the orthodox athletes had a higher percentage of victories against orthodox boxers than against southpaws.
4
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Czy (a)symetria w obrębie kompleksu orofacjalnego może być związana z preferencją ręki?

86%
Łuszczuk M.
Logopedia
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2020
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vol. 49
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issue 1
83-94
PL
Wprowadzenie: Okolica ustno-twarzowa jest przestrzenią wspólną dla różnych czynności prymarnych, takich jak na przykład przyjmowanie pokarmu i czynności sekundarnej – mowy. Podczas mówienia język w tylnej części jest usztywniony, podparty za pomocą podniesienia swych boków i ich kontaktu z częściami twardymi jamy ustnej tej okolicy. Podparcie języka jest cechą biologiczną niezależną od języka mówcy. Ruchy wykonywane podczas mówienia opierają się na ruchach wynikających z czynności prymarnych. Badania opisywane w niniejszym artykule dotyczą żucia, czynności wymagającej skoordynowanej pracy różnych mięśni, która może odbywać obu- lub jednostronnie. Główną hipotezą (H1) w tym badaniu jest zależność dwóch zmiennych: zmiennej zależnej (DV), czyli preferencji strony żucia (PCS) oraz zmiennej niezależnej (IV), czyli preferencji ręki opisywanej przez współczynnik Laterality Quotient (LQ). Metody: Próba składa się z 230 uczestników w wieku 21–43 lat. Do uchwycenia rozkładu zmiennych wykorzystano statystyki opisowe. Współczynnik korelacji rang Spearmana wskazywał na słabą korelację między preferencją strony żucia oraz preferencją ręki (-0,24), dlatego w kolejnym kroku zastosowano test Chi-kwadrat w celu sprawdzenia związku między zmiennymi. Na koniec oszacowano model regresji, aby ocenić powyższą zależność. Wyniki i wnioski: Zauważono, że u większości badanych dominuje raczej jednostronny model żucia, przy czym u ponad połowy badanych preferowana strona żucia znajduje się po tej samej stronie co ręka dominująca. Jednocześnie około 1/3 uczestników podczas żucia używa jednakowo obu stron. Analiza, zarówno test Chi-kwadrat, jak i model regresji, potwierdziła, że preferowana strona żucia jest istotnie związana z preferencją ręki.
EN
Introduction: The orofacial region is a common space for various functions such as speech or taking food. It was found that the tongue is lateral braced while speaking. The tongue bracing is a biological feature, independent on the speaker’s language. Chewing is an advanced activity that involves various muscles working coordinately. It is claimed that it is carried out on both or one side: right or left and it may be influenced by various factors. The main hypothesis (H1) in this study is dependence of two variables: dependent (DV), which is preference of side chewing (PCS) and independent (IV), which is handedness described by Laterality Quotient (LQ). Methods: The sample consists of 230 participants aged 21-43. Descriptive statistics were used to capture the distribution of variables. The Spearman’s rang correlation coefficient indicated a weak correlation between chewing and handedness (- .24), therefore in the next step the Chi-Square test of independence was applied to check the association between variables. Finally, the ordinal regression model was estimated to assess the aforementioned relationship. Results: It has been noted that in more than 1/2 of participants the side of chewing corresponds to dominant hand. However it has been noticed that about 1/3 of participants use both sides equally while chewing. It must be though other factors – regardless indicated in the research exclusion criteria – that affect the preference of chewing side (PCS). Conclusions: Analysis, both the Chi-Square test and the ordinal regression model confirmed that activity of the orofacial region while chewing is significantly related to handedness (H1).
5
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Structural and Functional Asymmetries in the Brain in the Light of Lateralization and Development of Language Competences

72%
Szurek M. M.
Journal of Preschool and Elementary School Education
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2014
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issue 6
13- 25
EN
The article presents the issue of the development of linguistic competence in the context of neurobiological research which points to the functional asymmetry of the brain. A reflection of this asymmetry is, among other things, lateralization of paired organs of the body. The author presents the results of studies indicating a connection between the development of lateralization and the development of language. She also emphasizes the need for therapeutic intervention for children with ambidexterity, cross or left-sided laterality. Moreover, the aim of the article is to sensitize people working with pre-school children to the issue of delays in dominance of paired organs. This is because delayed lateralization is in many cases accompanied by speech disorders.13 Page to25
6
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Asymetria i symetria funkcjonalna u dzieci w wieku 11–13 lat

58%
Choptiany M.
Sport i Turystyka. Środkowoeuropejskie Czasopismo Naukowe
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2018
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vol. 1
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issue 2
79-91
EN
The aim of the work is to determine the asymmetry and functional symmetry, which concerns handedness and footedness of children aged 11–13. The research covered 955 girls and boys from the Lubuskie Voivodeship. The material was collected in 2016–2017 by the author. The research tool was a questionnaire about specific activities performed by the respondents. The collected ma-terial was developed statistically, the number of individual symmetries, asymmetries in specific activities and their point value were calculated numerically and as a percentage.
PL
Celem pracy jest określenie asymetrii i symetrii funkcjonalnej, która dotyczy ręczności i nożności u dzieci w wieku 11–13 lat. Badaniami objęto 955 dziewcząt i chłopców z terenów woje-wództwa lubuskiego. Materiał został zebrany w latach 2016–2017 przez autorkę. Narzędziem badawczym był kwestionariusz ankiety dotyczący określonych czynności, które wykonywali badani. Zebrany materiał został opracowany statystycznie, wyliczono liczbowo i procentowo udział poszczególnych symetrii, asymetrii w określonych czynnościach oraz ich wartość punktową.
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