Psychophysiological reactivity and personality traits of left- and right-handers during intense mental load

Stoyanov, Zlatislav; Vartanyan, I. A.; Nikolova, Piareta

doi:10.1134/s0362119711060144

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…This suggests a possible difference in left and right-handers in their autonomic control over their cardio-vascular systems. When mental stress (i.e., cognitive load) is added in the form of a mental arithmetic task, measurement of vascular reactivity (comparing the increase from baseline to cognitive load condition) was significantly greater for left-handers including both males and females ( Stoyanov et al, 2011 ). This suggests that when left- and right-handers are placed into stressful situations, that left-handers may show a relatively larger increase in physiological responsiveness than right-handers.…”

Section: Discussionmentioning

confidence: 99%

Left-handers look before they leap: handedness influences reactivity to novel Tower of Hanoi tasks

Wright

Hardie

2015

Front. Psychol.

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A sample of 203 task naïve left- and right-handed participants were asked to complete a combination of the 3- and 4-disk Towers of Hanoi (ToH), manipulating novelty and complexity. Self-reported state anxiety and latency to respond (initiation time) were recorded before each ToH. Novelty had a major effect on initiation time, particularly for left-handers. Left-handers had a longer latency to start and this was significantly longer on the first trial. Irrespective of hand-preference, initiation time reduced on the second trial, however, this was greatest for left-handers. Condition of task did not systematically influence initiation time for right handers, but did for left-handers. State anxiety was influenced by task novelty and complexity in a more complicated way. During the first trial, there was a significant handedness × number of disks interaction with left-handers having significantly higher state anxiety levels before the 3-disk ToH. This suggests that the initial reaction to this task for left-handers was not simply due to perceived difficulty. On their second trial, participants completing a novel ToH had higher state anxiety scores than those completing a repeated version. Overall, left-handers had a larger reduction in their state anxiety across trials. Relating to this, the expected strong positive correlation between state and trait anxiety was absent for left-handed females in their first tower presentation, but appeared on their second. This was driven by low trait anxiety individuals showing a higher state anxiety response in the first (novel) trial, supporting the idea that left-handed females respond to novelty in a way that is not directly a consequence of their trait anxiety. A possible explanation may be stereotype threat influencing the behavior of left-handed females.

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Section: Discussionmentioning

confidence: 99%

Left-handers look before they leap: handedness influences reactivity to novel Tower of Hanoi tasks

Wright

Hardie

2015

Front. Psychol.

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“…Many researchers share the point of view that left-handers differ, to some degree, from right-handers regarding the emotionality and affective style [74][75][76]: findings exist that left-handedness is related to proneness to psychological distress, depression, anxiety, domination of the behavioral inhibition system (predominantly linked to the right hemisphere relating to inhibition of behavior and negative affect). Our studies revealed higher psychophysiological reactivity to mental stress in left-handers, as compared to righthanders [77,78]. Against this background, taking into account that individual differences in the affective style and reactivity can influence the immune function [72], surprisingly few research attempts have been made to examine the possible relationship between autoimmune vulnerability and emotionality and psychophysiological reactivity in left-handers.…”

Section: Brain Asymmetry and Immunity: The Mind-body Relationmentioning

confidence: 99%

Brain asymmetry, immunity, handedness

et al. 2011

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AbstractThe principle of symmetry-asymmetry is widely presented in the structural and functional organization of the nonliving and living nature. One of the most complex manifestations of this principle is the left-right asymmetry of the human brain. The present review summarizes previous and contemporary literary data regarding the role of brain asymmetry in neuroimmunomodulation. Some handedness-related peculiarities are outlined additionally. Brain asymmetry is considered to be imprinted in the formation and regulation of the individual’s responses and relationships at an immunological level with the external and internal environment. The assumptions that the hemispheres modulate immune response in an asymmetric manner have been confirmed in experiments on animals. Some authors assume that the right hemisphere plays an indirect role in neuroimmunomodulation, controlling and suppressing the left hemispheric inductive signals.

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Gender peculiarities of heart rate variability and hemodynamic basis of students’ educational activity

Biryukova

Владимировна²,

Vasilyuk

et al. 2019

I.P. Pavlov Russian Medical Biological Herald

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Aim of this study is to analyze gender peculiarities of physiological and psychophysical basis of students’ academic activity. Materials and Methods. 32 medical students (16 men and 16 women, 19-22 years) were examined. Students were proposed an alternative method of a colloquium on normal physiology in the form of a computer test. The test consisted of 30 questions, time of testing was not limited. The test was considered to be done if the number of correct answers was 50% or more. Examination of students’ heart rhythm, hemodynamic, and psychological parameters was conducted before and immediately after the test. Cardio-intervalogram was recorded within 5 minutes using Varicard hardware-software complex. The Students t-test, Mann-Whitney analysis, Wilcoxon analysis were used to determine the significance of differences between parameters among and within groups of men and women. Relationships of the studied parameters were determined using Spearman’s method of rank correlation. Results. It was demonstrated that fulfilment of the test by men was associated with reduction of hemodynamic parameters, with reduction of parasympathetic component and activation of sympathetic suprasegmental and central mechanisms of regulation of heart rhythm. Women showed stability of hemodynamic parameters and increase in suprasegmental influences on the dynamics of heart rhythm with lower average values. In correlation analysis conjugated pairs were found with the two components being different psychophysiological and physiological parameters, time and effectiveness of fulfilment of the test. The total number of conjugated and stable parameters were higher in women than in men both before and after computer testing. Conclusions. Gender peculiarities of hemodynamic basis of academic activity of students were found. The described dynamics can be considered a manifestation of a higher stability and relatively lower mobility of regulatory mechanisms in women.

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Psychophysiological reactivity and personality traits of left- and right-handers during intense mental load

Cited by 3 publications

References 3 publications

Left-handers look before they leap: handedness influences reactivity to novel Tower of Hanoi tasks

Left-handers look before they leap: handedness influences reactivity to novel Tower of Hanoi tasks

Brain asymmetry, immunity, handedness

Gender peculiarities of heart rate variability and hemodynamic basis of students’ educational activity

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