A Volumetric Study of the Corpus Callosum in the Turkish Population

Author(s):  
Handan Soysal ◽  
Niyazi Acer ◽  
Meltem Özdemir ◽  
Önder Eraslan

Abstract Objective The aim of this study is to measure the average corpus callosum (CC) volume of healthy Turkish humans and to analyze the effects of gender and age on volumes, including the genu, truncus, and splenium parts of the CC. Patients and Methods Magnetic resonance imaging brain scans were obtained from 301 healthy male and female subjects, aged 11 to 84 years. The median age was 42 years (min–max: 11–82) in females and 49 years (min–max: 12–84) in males. Corpus callosum and its parts were calculated by using MRICloud. CC volumes of each subject were compared with those of the age and gender groups. Results All volumes of the CC were significantly higher in males than females. All left volumes except BCC were significantly higher than the right volumes in both males and females. The oldest two age groups (50–69 and 70–84 years) were found to have higher bilateral CC volumes, and bilateral BCC volumes were also higher than in the other two age groups (11–29 and 30–49 years). Conclusion The results suggest that compared with females/males, females have a faster decline in the volume of all volumes of the CC. We think that quantitative structural magnetic resonance data of the brain is vital in understanding human brain function and development.

2020 ◽  
Vol 10 ◽  
pp. 344-357
Author(s):  
Marta Vavrová ◽  
Zuzana Rojková

The paper describes the drug-using behaviour among young people (12-19 y.) within two age groups in Slovakia. The study aims to describe the prevalence of two different forms of drug-use (experimentation and use within the last 30 days) of legal and illegal substances: alcohol, nicotine (cigarettes), marijuana, and other illegal drugs. A descriptive analysis was applied to two age and gender groups. The research sample was made up of 2489 pupils in primary and secondary schools (various types) from different regions within Slovakia. One set was made up of 39.1% (N = 974) boys and 61.3% (N = 1515) girls aged 12-19 years which was divided into two age groups: group “14” (14 to 15 years, N = 923) and group “16” (16 and older, N = 1566). The SAHA method was used for data collection (Social and Health Assessment, Weissberg et al., 1991; a Slovak version by Rojková, 2017). Gender differences were tested statistically, and some differences were identified. The results are discussed in the context of European and national surveys that are available and a decrease in experimentation with marijuana and smoking was found.  


2020 ◽  
Author(s):  
A. Asgari ◽  
A.A. Parach ◽  
F. Bouzarjomehri ◽  
F. Shirani-Takabi ◽  
A.H. Mehrparvar ◽  
...  

Introduction: Computer Tomography (CT) scans can deliver a relatively high radiation dose to the patient, therefore radiation protection for this modality is paramount. The present study determined the frequency of no abnormality detected (NAD) brain CT scans and probability of cancer induction in different age groups and genders. Methods: In this study, brain CT reports were used to identify any findings as abnormality detected (AD) and others as NAD. Then probability of future leukemia and brain cancer was estimated for different age and gender groups. Results: On average, in 65% of the cases the results were NAD (56% and 76% among males and females, respectively). Among children, 79% of the reports were NAD. The total number of projected brain cancers was 1.8 and 1.3 for males and females, respectively. The number of projected leukemia cases was 0.75 and 0.7 for males and females, respectively. For pediatric patients, brain CT scans can lead to leukemia cases about 4.5 times more often than adults. Conclusion: Brain CT scans can lead to additional cases of brain cancer and leukemia. A significant fraction of brain CTs were NAD (non-pathologic) and could practically be replaced by other radiation-free imaging modalities, especially in pediatric and young patients.


Author(s):  
Olesya Putilova ◽  
◽  
Olga Vindeker ◽  
Tat’yana Smorkalova ◽  
◽  
...  

The paper describes the results of the empirical study into psychological mindedness in relation to different types of reflection. The relevance of the paper is determined by the necessity to explore such human psychological characteristics that contribute to successful adaptation in the world of information abundance, uncertainty and inconsistency. The consistency between tolerance towards uncertainty and openness to change, on the one hand, and an interest in subjective experiences (own and others’ experiences), interest in internal processes, on the other, was called psychological mindedness. Initially, this concept was used in the framework of a clinical approach due to the necessity to examine the psychological factors of group and individual therapy effectiveness. Later it became clear that psychological mindedness could be a reliable predictor of an individual’s success in different lines of work. In Russia, this construct is under-researched. That is why this given study aimed to collect empirical data on the linkage between psychological mindedness and the highest adaptive type of reflection on a sample of Russian testees. The sample consisted of 149 respondents aged 18 – 65. Methods exploited in the study included Psychological Mindedness Scale by H. R. Conte (adapted by M. A. Novikova and T. V. Kornilova) and Differential Test of Reflexivity by D. A. Leont’ev, et al. The obtained data have confirmed the hypothesis of a connection between psychological mindedness and the systemic reflection. A positive correlation between one of the aspects of psychological mindedness – an interest in the sphere of subjective experiences – and introspection and quasi-reflection was found. Introspection as one of ineffective forms of reflection is negatively linked to the most important parameter of psychological mindedness – subjective availability of experiences for comprehension and analysis. In the course of correlation analysis the specificity of interrelations between psychological mindedness and types of reflection in women, men and mixed-age groups was revealed. The obtained data allow for clarifying the concept of psychological mindedness and differentially carrying out further studies on mixed-age and gender groups.


Author(s):  
Sukhija Sunita ◽  
Sukhija Sunita

The present paper focuses on the impact of quality on customers’ buying behaviour towards point-of-purchase display at various retail outlets in Haryana. Point-of-Purchase Display plays an important role to increase the sale of the retailers. Today customers are rational and prefer quality products at reasonable price. Moreover, due to the emergence of the supermarkets as the dominant retail, the retail industry is experiencing vibrant changes all over the world. Retail industry in India has grown to be more complex and dynamic with an increase rate of speed from unorganized towards being organized. In this research paper data has been collected from 100 respondents and analysed with the help of Statistical Package for the Social Sciences (SPSS) using one way ANOVA and t-test with demographic factors i.e. age-wise, gender-wise, occupation-wise and income-wise. . After analysing the data it was found that, there is neutral relationship in the opinion of different age groups and gender groups over the point-of-purchase display on quality. On the other hand Occupation and income does not have any importance on customers view point regarding ‘quality’. To conclude we can say that point-of-purchase display is not directly related to the quality.


2018 ◽  
Vol 6 ◽  
pp. 296-302
Author(s):  
Agnieszka Leszczynska

This article discusses issues related to organizational commitment and work related values. The research problem focuses on the correlation between values related to professional work and the affective, normative and calculative commitment of employees. A research question was posed as to what work related values are correlated with organisational commitment. The article presents the results of an empirical study conducted on a group of 2076 people with the use of a diagnostic survey. The obtained data were analysed relative to the gender and age of the respondents. The results indicate certain discrepancies in terms of the value hierarchies observable between employees of different ages. Both men and women selected work-life balance and security as their most important values. The level of commitment was comparable between representatives of the two genders, with the levels observed for normative commitment. Organisational commitment increased with age and was statistically different for the respective age groups. The study confirmed the correlation between the hierarchy of work related values and the level of commitment, as well as the discrepancies in this respect between the respective age and gender groups. The same suggests that there is a need to account for values held by the employees when developing and employing motivational systems and HR practices.


Author(s):  
O. Marchenko ◽  
O. Kholodova ◽  
K. Zaiets

Describes a complex of methods for the implementation of scientific research, the information of those who were researched is represented, methodology and methods of the research are described.Covers a wide range of problems, in particular a comprehensive study of motivation for both physical activity (needs, interests, self-conception, performance, leisure and factors of a healthy lifestyle), and for learning and succeeding.Objective: to study gender peculiarities and differences in self-description of physical development of schoolchildren. Material: The study involved schoolchildren of 5-11 grades (n = 638), among them: young men - 282, girls - 386. Correlation analysis of self-description of subjective indexes of physical development of schoolchildren has been conducted. Results: Using the results of the testing “Self-description of physical development”. It was found out that the correlational connection of indicators of self-description of the physical development of respondents of all ages have certain gender differences. We found that general self-esteem of boys of primary school age is affected by more indicators than of the girls. Young men associate with their own self-esteem and physical qualities: coordination and flexibility. Girls associate their health with physical activity and their own physical abilities. Conclusions: The obtained results of the scientific experiment give us the right to assert the existence of age and gender differences between the indicators of self-description of boys and girls who are engaged in and not engaged in sports. The study of self-assessment of physical boys and girls of different ages helped to draw conclusions about common and different priorities of the motivational sphere of physical culture and sports in gender and age.


Author(s):  
N. Kimberly Bohannon ◽  
Stephen L. Young

The present study examined the effect of warning labels in alcohol advertising on the perception of risk for alcohol consumption. Under incidental conditions, subjects from two age groups, young (M = 13.6 years) and older (M = 23.3 years), examined a collection of magazine ads. Three of the ads in the booklet were for alcoholic beverages and these were either accompanied by a warning or the warning was absent. When present, the warnings were manipulated by the orthogonal combination of text voice (2nd vs. 3rd person) and pictorial (presence vs. absence) in a between-subjects design. A fifth condition served as the no-warning control. After examining the magazine ads, subjects answered a questionnaire which assessed several dimensions related to the ads: number and type of ads, attractiveness of the ads, and number and type of warnings in the ads. Examination of the questions dealing with the risk of alcohol consumption indicated that adolescents rated their own risk lower than the risk to adolescents in general, but that this bias in risk ratings was not evident when warnings were present. There were also several other age and gender effects. While no individual warning manipulation was found to be consistently superior to another, the results suggest that warnings can be effective in producing proper estimations of risk in different age populations.


1992 ◽  
Vol 50 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Susana Camposano ◽  
Fernando Lolas

Left handers and women show less anatomical brain asymmetry, larger corpus callosum and more bilateral representation of specific functions. Sensory and cognitive components of cortical auditory evoked potentials (AEF) have been shown to be asymmetric in right handed males and to be influenced by stimulus intensity. In this study the influence of sex, handedness and stimulus intensity upon AEP components is investigated under basal conditions of passive attention. 14 right handed males, 14 right handed females, 14 left handed males, and 14 left handed females were studied while lying awake and paying passive attention to auditory stimulation (series of 100 binaural clicks, duration 1 msec, rate 1/sec, at four intensities). Cz, C3 and C4 referenced to linked mastoids and right EOG were recorded. Analysis time was 400 msec, average evoked potentials were based on 100 clicks. Stimulus intensity and gender affect early sensory components (P1N1 and N1P2) at central leads, asymmetry is influenced only by handedness, right handers showing larger P1N1 amplitudes over the right hemisphere.


2007 ◽  
Vol 7 (2) ◽  
pp. 275-293 ◽  
Author(s):  
Emile C. J. Sheng

This article compares partisanship across East Asian nations, with four indicators reflecting different dimensions of the concept. Across these indicators, partisanship in East Asian nations was found to be relatively weak compared with most Western democracies, reflecting the less institutionalized nature of their party systems. This could be caused by insufficient time to develop partisanship through mechanisms such as electoral experience and parental socialization. Further breakdowns of income, gender, age groups, and educational levels of partisans showed that more advanced democracies share a relatively uniform pattern across demographics, while young democracies in East Asia showed a more skewed distribution of partisan identifiers, unevenly distributed across income and gender groups. This pattern suggests partisanship is likely to start its development from certain segments of the population and then spread into other segments of the society as a party system becomes more institutionalized.


2020 ◽  
Author(s):  
Gianluca Lo Coco ◽  
Ambra Gentile ◽  
Ksenija Bosnar ◽  
Ivana Milovanovic ◽  
Antonino Bianco ◽  
...  

AbstractObjectivesTo examine gender, age and cross-country differences in fear of COVID-19 and sense of loneliness during the lockdown, by comparing people from countries with a high rate of infections and deaths (i.e. Spain and Italy) and from countries with a mild spread of infection (i.e. Croatia, Serbia, Slovakia, Slovenia, Bosnia and Herzegovina).MethodsA total of 3876 participants (63% female) completed an online survey on “Everyday life practices in COVID-19 time” in April 2020, including measures of fear of COVID-19 and loneliness.ResultsMales and females of all age groups in countries suffering from a strong impact of the COVID-19 pandemic reported higher fear of COVID-19 and sense of loneliness. In less endangered countries females and elder stated more symptoms than males and younger; in Spanish and Italian sample the pattern of differences is considerably more complex.ConclusionFuture research should thoroughly examine different age and gender groups. The analysis of emotional well-being in groups at risk of mental health issues can help to lessen the long term social and economic costs due to the COVID-19 outbreak.


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