Issues of Hand Preference in Computer Presented Information and Virtual Realities

2006 ◽  
pp. 224-243
Author(s):  
Adam Tilinger ◽  
Cecilia Sik-Lanyi
Keyword(s):  
Virtual Environment ◽  
Hand Preference ◽  
Environment Design ◽  
Daily Lives ◽  
Left Handed ◽  
Virtual Realities ◽  
Left And Right ◽  
User Friendly ◽  
Test Scenarios

This chapter presents the differences between left- and right-handed persons in the aspect of computer-presented information and virtual realities. It introduces five test scenarios and their results addressing this question. We showed that there are moderate differences between groups preferring different hands. The different needs of left- and right-handed people may play an important role in user-friendly interface and virtual environment design, since about a tenth of the population is left-handed. This could help to undo the difficulties that the left-handed and ambidextrous routinely encounter in their daily lives.

Issues of Hand Preference in Computer Presented Information and Virtual Realities

2008 ◽  
pp. 1411-1425
Author(s):  
Adam Tilinger ◽  
Cecilia Sik-Lanyi
Keyword(s):  
Virtual Environment ◽  
Hand Preference ◽  
Environment Design ◽  
Daily Lives ◽  
Left Handed ◽  
Virtual Realities ◽  
Left And Right ◽  
User Friendly ◽  
Test Scenarios

This chapter presents the differences between left- and right-handed persons in the aspect of computer-presented information and virtual realities. It introduces five test scenarios and their results addressing this question. We showed that there are moderate differences between groups preferring different hands. The different needs of left- and right-handed people may play an important role in user-friendly interface and virtual environment design, since about a tenth of the population is left-handed. This could help to undo the difficulties that the left-handed and ambidextrous routinely encounter in their daily lives.

Asymmetries of Manual Motor Response in Relation to Age, Sex, Handedness, and Occupational Activities

1993 ◽  
Vol 77 (2) ◽  
pp. 691-700 ◽  
Author(s):  
Olga Vasconcelos
Keyword(s):  
Hand Preference ◽  
Occupational Activity ◽  
Manual Skill ◽  
Left Handed ◽  
Occupational Activities ◽  
Motor Activities ◽  
Left And Right ◽  
And Performance ◽  
Post Hoc ◽  
Intellectual Activities

Questions about left- and right-hand asymmetries require the analysis of preference and manual skill with respect to handedness. Hand preference and hand skill were examined in relation to sex, age, and occupational activities. 512 adults from manual, mixed, and intellectual activities and 253 children were tested for their manual preferences and performance. Analysis of variance followed by Scheffé post hoc tests, for right-handed adults, indicated significant effects for occupational activity and sex in dexterity and strength. Manual workers, under technological pressure, seemed more consistent in their manual preferences than their peers. For left-handed persons there were no significant effects. Dexterity and strength were also related to sex and age, suggesting different cultural opportunities for both sexes in relation to motor activities.

Comparison of Vestibular Function Between Right and Left Handed Normal Population

2018 ◽  
Vol 16 (1) ◽  
pp. 28-31
Author(s):  
Sharma Bhandari ◽  
Sagun Shrestha ◽  
R.K. Saxena
Keyword(s):  
Normal Population ◽  
Vestibular Function ◽  
Hand Preference ◽  
Normal Subjects ◽  
Slow Phase ◽  
Canal Paresis ◽  
Slow Phase Velocity ◽  
Left Handed ◽  
Left And Right ◽  
The Right

Objective To identify the side of vestibular dominance in right handed & left handed people. Method A total of 50 normal subjects, aged between 15 - 45 years were included as Left handers (n = 25) and Right handers (n = 25). Handedness was confirmed by the Annett Hand Preference Questionnaire. Bithermal caloric testing was done which was recorded by Electronystagmography (ENG). Maximum Slow Phase Velocity (MSPV) was taken as the parameter of choice. Directional Preponderance (DP) and Canal Paresis (CP) were calculated in each group. Results Out of the 25 Left handed subjects, 8 had DP towards Left whereas 7 had DP towards the Right and the remaining 10 showed no DP to any side (normal) (p<0.001). Out of the 25 Right handed subjects, 4 had DP towards Right and none had DP towards the Left, remaining 21 showed no DP to any side (normal) (p<0.001). For CP, out of 25 Left handed subjects, 2 showed CP towards the Left and 1 towards the Right, the remaining 22 showed no CP (normal) at all. Similarly out of the 25 Right handed subjects, 2 showed CP towards the Left and 1 towards the Right, the remaining 22 showed no CP (normal) at all. Out of 25 Right handers, it was found that Right handers showed Right vestibular preference whereas vestibular preference was almost equally distributed to Left and Right side in Left handers. Conclusion On considering DP, it was found that Right handers showed Right vestibular preference whereas vestibular preference was almost equally distributed toLeft and Right side in Left handers (p<0.001).

scholarly journals Hand and paw preferences in relation to the lateralized brain

2008 ◽  
Vol 364 (1519) ◽  
pp. 943-954 ◽  
Author(s):  
Lesley J Rogers
Keyword(s):  
Brain Structure ◽  
Population Level ◽  
Hand Preference ◽  
Task Demands ◽  
Brain Lateralization ◽  
Broad Perspective ◽  
Left Handed ◽  
Left And Right ◽  
Per Se ◽  
Hand Preferences

Hand preferences of primates are discussed as part of the broad perspective of brain lateralization in animals, and compared with paw preferences in non-primates. Previously, it has been suggested that primates are more likely to express a species-typical hand preference on complex tasks, especially in the case of coordinated hand use in using tools. I suggest that population-level hand preferences are manifested when the task demands the obligate use of the processing specialization of one hemisphere, and that this depends on the nature of the task rather than its complexity per se . Depending on the species, simple reaching tasks may not demand the obligate use of a specialized hemisphere and so do not constrain limb/hand use. In such cases, individuals may show hand preferences that are associated with consistent differences in behaviour. The individual's hand preference is associated with the expression of behaviour controlled by the hemisphere contralateral to the preferred hand (fear and reactivity in left-handed individuals versus proactivity in right-handed individuals). Recent findings of differences in brain structure between left- and right-handed primates (e.g. somatosensory cortex in marmosets) have been discussed and related to potential evolutionary advances.

scholarly journals A-079 Hand Preference in Men and Women with Parkinson’s Disease: A Preliminary Investigation

2020 ◽  
Vol 35 (6) ◽  
pp. 871-871
Author(s):  
Ryan J ◽  
Kreiner D ◽  
Gontkovsky S ◽  
Paolo A
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Neurological Disorders ◽  
Rating Scale ◽  
Preliminary Investigation ◽  
Hand Preference ◽  
Dominant Hand ◽  
Healthy Individuals ◽  
Left Handed ◽  
Increased Risk

Abstract Objective Research has identified common genetic influences on handedness and neurological/mental health phenotypes. It also has been shown there may be increased risk for development of neurological disorders/diseases among individuals naturally left-handed or demonstrating non-right-hand preference. This investigation examined prevalence of right-handed versus non-right-handed individuals with Parkinson’s disease (PD) compared to controls. Method Participants were 264 patients with PD (mean age = 69.83 years) and 256 control volunteers (mean age = 71.42 years). Mean Dementia Rating Scale composites for the groups were 123.68 and 136.00, respectively. Participants self-identified their dominant hand for writing and usage was confirmed during the session. Results Proportions of non-right- and right-handed controls (7.0% and 93.0%) versus individuals with PD (6.8% and 93.2%) did not differ. Changes in proportions of non-right- and right-handedness across age ranges were not significant for controls or patients. There was a trend for a larger proportion of women (55.9%) versus men among controls (44.1%), □ 2 (1) = 3.29, p &lt; .10; whereas, the proportion of men (64.4%) with PD was larger than that of women. (35.6%), □ 2 (1) = 21.31, p &lt; .001. For controls and patients, non-right and right handedness gender proportions were similar. Conclusions This study is the first to assess handedness prevalence rates in PD. Results suggest prevalence of non-right handedness is similar in PD and healthy individuals and does not appear to differ markedly by gender or with advancing age. The occurrence of a trend for a larger proportion of women than men among controls is consistent with census-based statistics.

Lifted-Weight Difference Thresholds as a Function of Hand

1978 ◽  
Vol 46 (1) ◽  
pp. 175-178 ◽  
Author(s):  
William A. Siders ◽  
Harry Hoffman ◽  
Bradley B. Glanville
Keyword(s):  
College Students ◽  
Weight Changes ◽  
Weight Difference ◽  
Left Handed ◽  
Perceived Weight ◽  
Left And Right ◽  
Difference Thresholds

A study was conducted to determine if the two hands of right-handers are differentially sensitive to changes in perceived weight. Using the method of limits, the left and right hands of 20 college students were tested at each of three reference weights: 90, 100, and 110 gm. Results indicated that, over-all, difference thresholds for the two hands were not reliably different, though a trend did emerge toward greater right-handed sensitivity to weight changes at smaller weights and greater left-handed sensitivity at greater weights.

Handedness affects Emotional Valence Asymmetry

1989 ◽  
Vol 68 (2) ◽  
pp. 435-441 ◽  
Author(s):  
Richard A. McFarland ◽  
Robert Kennison
Keyword(s):  
Negative Affect ◽  
Hemispheric Asymmetry ◽  
Emotional Responses ◽  
Emotional Valence ◽  
Left Handed ◽  
Two Factors ◽  
Left And Right ◽  
The Asymmetry ◽  
The Right ◽  
Cerebral Processing

Music was played monaurally to 80 right-handed and 80 left-handed subjects. Right-handers reported more positive and less negative affect if the music was to the right ear. Left-handers reported experiencing more positive and less negative affect during music to the left ear. The hand × ear interaction was significant. The valence of emotional responses to the music seems influenced by a combination of at least two factors, (1) differences between left- and right-handers in the cerebral processing of emotional valence and (2) differences in the processing of emotional valence within each handedness group depending upon which hemisphere was initially most strongly engaged by the music. These results partially corroborate and extend the findings of previous studies in which briefer stimuli were presented tachistoscopically or dichotically. It is concluded that, while there is hemispheric asymmetry in the processing of emotional valence, the direction of the asymmetry may be associated with the handedness of the subjects.

scholarly journals Restorative Virtual Environment Design for Augmenting Nursing Home Rehabilitation

2016 ◽  
Vol 9 (3) ◽  
Author(s):  
Jon Ram Bruun-Pedersen ◽  
Stefania Serafin ◽  
Lise Busk Kofoed
Keyword(s):  
Physical Activity ◽  
Nursing Home ◽  
Muscle Strength ◽  
Intrinsic Motivation ◽  
Virtual Environment ◽  
Nursing Home Residents ◽  
User Preferences ◽  
Environment Design ◽  
Design Considerations ◽  
Home Users

With increasing age, muscle strength decreases excessively rapidly if physical activity is not maintained. However, physical activity is increasingly difficult with aging. This is due to balance, strength or coordination difficulties, arthritis, etc. Moreover, many nursing home residents become unable to experience natural surroundings. Augmenting a conventional biking exercise with a recreational virtual environment (RVE) has shown to serve as an intrinsic motivation contributor to exercise for nursing home residents. RVEs might be able to provide some of the health benefits that regular nature experiences do. More studies on content of proper custom designs for RVEs are necessary. This paper reviews the background for RVE design, describes four custom RVE designs for recreational VE exploration and presents user preferences among nursing home users concerning content and other pivotal design considerations.

scholarly journals Individual Laterality in Ghost Crabs (Ocypode saratan) Influences Burrowing Behavior

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1512
Author(s):  
Reuven Yosef ◽  
Michal Daraby ◽  
Alexei Semionovikh ◽  
Jakub Z. Kosicki
Keyword(s):  
Natural Selection ◽  
Red Sea ◽  
Selection Pressure ◽  
Left Handed ◽  
Self Defense ◽  
Temporal Segregation ◽  
Ghost Crabs ◽  
Left And Right ◽  
Burrowing Behavior ◽  
The Right

Behavioral handedness is known to enhance an individual’s handling capabilities. However, the ecological advantages in brachyuran crustaceans remain unclear, despite the Ocypode species having been studied extensively. Thus, in this study, we analyzed the laterality of the endemic Red Sea ghost crab on one beach in Eilat, Israel. We successfully documented the laterality of the large cheliped in 125 crabs; in 60 (48.0%), the right cheliped was larger, and in 64 (51.2%), the left. We also observed temporal segregation between the right- and left-clawed crabs. The right-handed crabs start activity just after sunrise, while left-handed crabs appear ca. 40 min after it. Similarly, temporal segregations were also observed in the evening. The right-clawed crab activity peaked ca. 20 min before sunset, while the left-clawed crabs were active uniformly. Additionally, burrow entrances corresponded to the larger cheliped of the resident individual and is probably a self-defense-related behavior. We conclude that cheliped laterality in O. saratan populations should be considered as a bimodal trait, where left- and right-handedness is not under natural selection pressure.

scholarly journals Real Time Electrical Energy Monitoring and Cost Benefit Analysis using Smart Meter

2020 ◽  
Vol 8 (6S) ◽  
pp. 156-160
Keyword(s):  
Real Time ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Electrical Energy ◽  
Energy Resources ◽  
Energy Utilization ◽  
Daily Lives ◽  
New Energy ◽  
The Cost ◽  
User Friendly

Energy is an essential component in supporting people’s daily lives and is a significant economical element in development of the country. The eventual depletion of conventional energy resources and their harmful impacts on environment as well as the rising energy costs and the limitations of new energy resources and technologies have pushed efficient energy management to the top of the agenda. But how the energy utilization can be managed? A simple answer to this is viable and real time metering, which enables calculation of run time energy consumption and obtaining the real-time as well as cumulative cost. In this research an Innovative hardware and IoT based solution to this problem is availed that could provide live information related to consumption of electricity by various appliances. The methodology used in this research is mainly based on a hardware tool named Elite 440 which is a meter and provides the data about various electrical parameters. This data so obtained is made visible on the dashboard in a user friendly. The data so visible includes various parameters like voltage, current, power factor etc. Also the data so obtained on the dashboard gets updated in each five minutes and simultaneously the cost gets updated which makes it real time monitoring System.

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