journal
https://read.qxmd.com/read/38507594/hemispheric-engagement-during-the-processing-of-affective-adjectives-an-erp-divided-visual-field-study
#1
JOURNAL ARTICLE
Szczepan J Grzybowski, Miroslaw Wyczesany
The study looked into the hemispheres' involvement in emotional word encoding. It combined brain activity measures (ERPs) with behavioural data during the affective categorization task in the divided visual field presentation paradigm. Forty healthy right-handed student volunteers took part in the study, in which they viewed and evaluated 33 positive and 33 negative emotional adjectives presented to either the left or right visual field. We observed a marginally significant effect on the earlier time window (220-250 ms, the P2 component) with higher mean amplitudes evoked to the words presented to the right hemisphere, and then a strong effect on the 340-400 ms (the P3) with a reversed pattern (higher amplitudes for words presented to the left hemisphere)...
March 20, 2024: Laterality
https://read.qxmd.com/read/38415990/the-italian-version-of-edinburgh-handedness-inventory-translation-transcultural-adaptation-and-validation-in-healthy-subjects
#2
JOURNAL ARTICLE
Benedetta Gori, Antonello Grippo, Martina Focardi, Francesco Lolli
Lateralization is a key aspect of brain architecture and handedness is its primary manifestation. The Edinburgh Handedness Inventory (EHI) and the laterality quotient (LQ) assess the direction and consistency of handedness and require translation and cross-cultural adaptation to guarantee construct validity. We developed a standardized Italian EHI version. The developed Italian version was tested on 202 Italian subjects, classified into three hand types based on their LQs: right, mixed, and left. The frequency of left-handedness in Italians and other populations was compared to previous data...
February 28, 2024: Laterality
https://read.qxmd.com/read/38415984/sleight-of-hand-role-differentiated-bimanual-manipulation-speed-across-infancy
#3
JOURNAL ARTICLE
Julie M Campbell, Emily C Marcinowski
Role-differentiated bimanual manipulation (RDBM) is a complex behaviour requiring the complementary movement of two hands to achieve a common goal. We investigated the relation of RDBM speed (time to complete a successful RDBM) with a hand preference for acquiring objects (early right, late right, left, no preference), toy type (simple/difficult), age (9-14 months), and hand (right/left) used to perform the RDBM. Changes in RDBM speed across age were examined across different hand preference groups for RDBMs performed on simple toys using the right hand...
February 28, 2024: Laterality
https://read.qxmd.com/read/38415348/left-hand-preference-in-visual-artists-a-pre-registered-observational-study-on-instagram
#4
JOURNAL ARTICLE
Åsne Røsvoll, Emilie H Rusten, René Westerhausen
The notion of an increased incidence of left handers among architects and visual artists has inspired both scientific theory building and popular discussion. However, a systematic exploration of the available publications provides, at best, modest evidence for this claim. The present preregistered observational study was designed to reinvestigate the postulated association by examining hand preference of visual artists who share their artistic activities as short video clips ("reels") on the social media platform Instagram...
February 28, 2024: Laterality
https://read.qxmd.com/read/38408188/historical-changes-in-everyday-human-lifestyles-and-their-effects-on-hemispheric-activation-speculations-on-mcgilchrist-s-the-master-and-his-emissary
#5
REVIEW
Stephen D Christman, Eric C Prichard
ABSTRACT McGilchrist [McGilchrist, I. (2009). The master and His emissary: The divided brain and the making of the modern world . Yale University Press] argued that Western society has undergone a population-level shift from greater right hemisphere influence on cognition to increasingly greater left hemisphere influence over the past few centuries. Four historical lifestyle changes that replaced behaviours associated with right hemisphere activation with behaviours associated with left hemisphere activation may be responsible: (i) shifts from standing to sitting, (ii) from being outdoors to indoors, (iii) from communal to solitary activities, and (iv) from analogue/concrete to holistic/abstract representations...
February 26, 2024: Laterality
https://read.qxmd.com/read/38112692/exploring-cerebral-laterality-of-writing-and-the-relationship-to-handedness-a-functional-transcranial-doppler-ultrasound-investigation
#6
JOURNAL ARTICLE
Anastasia-Konstantina Papadopoulou, Christos Samsouris, Filippos Vlachos, Nicholas A Badcock, Phivos Phylactou, Marietta Papadatou-Pastou
Cerebral lateralization of oral language has been investigated in a plethora of studies and it is well established that the left hemisphere is dominant for production tasks in the majority of individuals. However, few studies have focused on written language and even fewer have sampled left-handers. Writing comprises language and motor components, both of which contribute to cerebral activation, yet previous research has not disentangled. The aim of this study was to disentangle the language and motor components of writing lateralization...
January 2024: Laterality
https://read.qxmd.com/read/37962492/lateral-spatial-biases-in-naturalistic-and-simulated-driving-does-pseudoneglect-influence-performance
#7
JOURNAL ARTICLE
Austen K Smith, Rodrigo Vicencio-Moreira, Trista E Friedrich, Meghan E Flath, Carl Gutwin, Lorin J Elias
Whereas a rightward bump is more likely than a leftward bump when walking through a doorway, investigations into potential similar asymmetries for drivers are limited. The research presented here aims to determine the influence of innate lateral spatial biases when driving. Data from the Strategic Highway Research Program Naturalistic Driving Study (SHRP 2 NDS) and a driving simulation were used to address our research questions. Data points from SHRP 2 were aggregated within relevant variables (e.g., left/right obstacles)...
November 14, 2023: Laterality
https://read.qxmd.com/read/37771079/patterns-of-language-and-visuospatial-functional-lateralization-and-cognitive-ability-a-systematic-review
#8
REVIEW
Josephine E Quin-Conroy, Donna M Bayliss, Sabrina G Daniell, Nicholas A Badcock
For most individuals, language is predominately localized to the left hemisphere of the brain and visuospatial processing to the right. This is the typical pattern of functional lateralization. Evolutionary theories of lateralization suggest that the typical pattern is most common as it delivers a cognitive advantage. In contrast, deviations from the typical pattern may lead to poorer cognitive abilities. The aim of this systematic review was to assess the evidence for an association between patterns of language and visuospatial lateralization and measures of cognitive ability...
September 28, 2023: Laterality
https://read.qxmd.com/read/37676081/comparing-two-versions-of-the-chimeric-face-test-a-pilot-investigation
#9
JOURNAL ARTICLE
Rachel Jane Nesbit, Dawn Watling
ABSTRACT The Chimeric Face Test (CFT) is a widely used behavioral measure of degree of lateralization for emotion processing. The Pictures of Facial Affect (Ekman, 1976 [ Pictures of facial affect . Consulting Psychologists Press.]) have often been used to create chimeras for this task but have widely been critiqued due to lack of ethnic diversity and small stimuli numbers. In this brief study participants ( N  = 45) completed two Chimeric Face Tests, one using the Pictures of Facial Affect and one using the NimStim facial stimuli (Tottenham et al...
September 7, 2023: Laterality
https://read.qxmd.com/read/37671701/lateral-preference-in-complex-combat-situations-prevalence-and-relationship-with-general-measures-of-hand-and-foot-preference
#10
JOURNAL ARTICLE
Florian Loffing, Ole Deeken, Jörg Schorer
Laterality is considered relevant to performance in combat sports with particular emphasis being placed on fighters' handedness and combat stance. Such approach, however, may fall too short to understand the role of laterality in sports where fighters are allowed to use their hands and feet standing and on the ground. Here, we referred to grappling sports (i) to estimate lateral preferences in selected combat situations and (ii) to test for an association between those preferences and common measures of hand and foot preference...
September 6, 2023: Laterality
https://read.qxmd.com/read/37658580/the-effect-of-light-during-embryonic-development-on-laterality-and-exploration-in-western-rainbowfish
#11
JOURNAL ARTICLE
Flavia Berlinghieri, Nils Jansen, Bernd Riedstra, Culum Brown, Ton G G Groothuis
ABSTRACT Several factors affect the development of lateralization such as hormones and light exposure during early development. Laterality also often correlates with other behavioral traits. To examine whether there is a common mechanism underlying the development of laterality and other behaviors, we manipulated laterality by exposing embryos of the Western rainbowfish ( Melatotaenia australis ) to light or continuous darkness during early development and determined whether a shift in laterality was associated with a change in behavior in a novel environment test at two different ages...
September 1, 2023: Laterality
https://read.qxmd.com/read/37635276/both-direction-and-degree-of-handedness-as-influential-factors-in-rumination
#12
JOURNAL ARTICLE
Ali Bahari, Jafar Hasani
There is contradictory evidence on the influence of handedness on depression and anxiety. However, few studies have investigated the relationship between handedness and rumination, which is robustly associated with both depression and anxiety. This study aimed to examine the influence of direction and consistency of handedness on rumination, considering four different classifications of handedness. The study sample included 406 participants (282 females) who attended an online survey and answered a demographic questionnaire, the Edinburgh Handedness Inventory, the Ruminative Response Scale, and the second edition of the Beck Depression Inventory...
August 27, 2023: Laterality
https://read.qxmd.com/read/37608647/smartphones-and-rightward-collisions
#13
JOURNAL ARTICLE
Matia Okubo
People tend to deviate to the right when walking through a narrow aperture (e.g., a doorway), resulting in a rightward bias in collisions. This study examines the effects of smartphone use on rightward collisions while walking. When pedestrians walk through a narrow aperture, they usually head straight to the perceived centre of the aperture, which is shifted slightly to the right, without updating the estimates. The rightward shift of the perceived centre is attributable to the rightward attentional shift in the extrapersonal space...
August 22, 2023: Laterality
https://read.qxmd.com/read/37605527/handedness-and-anxiety-a-review
#14
REVIEW
Sebastian Ocklenburg, Jette Borawski, Annakarina Mundorf, Kerrin Riedel, Alexander Lischke
Handedness is a core phenotype in clinical laterality research and several different disorders such as schizophrenia and autism spectrum disorders have been linked to a higher prevalence of non-right-handedness. Moreover, subclinical personality traits like schizotypy have been linked to a higher prevalence of non-right-handedness. The association with handedness is poorly understood for generalized anxiety disorder and specific phobias, as well as for state and trait anxiety and fear of specific stimuli in nonclinical samples...
August 21, 2023: Laterality
https://read.qxmd.com/read/37563843/righty-tighty-lefty-loosey-relation-between-societal-tightness-scores-left-handedness-rates-and-covid-19-outcomes-in-us-states
#15
JOURNAL ARTICLE
Stephen D Christman, Eric C Prichard
As the percentage of right-handers increases in a state, the tightness of that state's culture, as measured, also increases. The relations between handedness, tightness, and various COVID measures (cases per 100,000, vaccination rates, hospitalization rates, death rates, and mask wearing adherence) were examined. Left-handedness rates and tightness both marginally predicted COVID cases and significantly predicted vaccination rates (more right-handers and more tightness associated with higher COVID rates and lower vaccination rates), only left-handedness rates predicted mask wearing adherence (more left-handers associated with increased adherence), only tightness predicted death rates (more tightness associated with higher death rates), and neither handedness or tightness predicted hospitalizations...
August 10, 2023: Laterality
https://read.qxmd.com/read/37559235/asymmetry-in-hemispheric-strategies-for-visual-recognition-of-homonyms
#16
JOURNAL ARTICLE
Sangyub Kim, Kichun Nam
The primary objective of this investigation was to explore the strategic asymmetry exhibited by the two hemispheres during semantic processing, specifically focusing on the visual recognition of homonyms. By utilizing balanced and unbalanced homonyms, we sought to ascertain whether foveal processing adheres to a specific hemisphere's strategy. In Experiment 1, we employed a visual half-field presentation paradigm to elucidate the unihemispheric strategy employed for homonym recognition. Notably, our results revealed a significant type effect, whereby responses were more accurate for unbalanced homonyms compared to balanced homonyms, particularly in the LVF/RH...
August 9, 2023: Laterality
https://read.qxmd.com/read/37525344/are-they-all-born-to-score-the-relationship-between-throwing-arm-and-scoring-from-the-7-meter-line-in-semi-professional-handball
#17
JOURNAL ARTICLE
Aron Laxdal, Sveinn Þorgeirsson, Jose M Saavedra, Ólafur Sigurgeirsson, Andreas Ivarsson
ABSTRACT Indications of laterall biases favouring left-handers have been found in various sports; especially interactive sports where the athletes have limited time to react to incoming objects. The aim of this study was therefore to explore whether any lateral biases exist in handball by examining 7-meter shots. A total of 6846 7-meter throws from 240 7-meter shooters across four seasons in the semi-professional Icelandic elite handball division (male and female) were analyzed. Out of the 240 7-meter shooters, of which 151 were male and 89 were female, 22% were left-handed (22% of the males and 20% of the females)...
July 31, 2023: Laterality
https://read.qxmd.com/read/37368942/aging-reduces-manual-dexterity-and-force-production-asymmetries-between-the-hands
#18
JOURNAL ARTICLE
Zhujun Pan, Qun Fang, Deborah M Watson, Arend W A Van Gemmert, Christopher A Aiken
Age-related effects on motor asymmetry provide insight into changes in cortical activation during aging. To investigate potential changes in manual performance associated with aging, we conducted the Jamar hand function test and the Purdue Pegboard test on young and older adults. All tests indicated reduced motor asymmetry in the older group. Further analysis suggested that a significant decline in dominant (right) hand function resulted in less asymmetric performance in older adults. The finding is inconsistent with the application of the HAROLD model in the motor domain, which assumes improved performance in the non-dominant hand, leading to a reduction of motor asymmetry in older adults...
June 27, 2023: Laterality
https://read.qxmd.com/read/37368940/greater-resting-frontal-alpha-asymmetry-associated-with-higher-emotional-expressive-flexibility
#19
JOURNAL ARTICLE
Chenyu Shangguan, Yali Wang, Bingping Zhou, Jiamei Lu, Meixian Shan
Emotional expressive flexibility (EEF) is an important social ability that has prompted scholars to examine its benefits to human mental health. However, the neural underpinnings of individual differences in the EEF remain unclear. In neuroscience, frontal alpha asymmetry (FAA) is regarded as a sensitive indicator of certain emotional modalities and affective styles. To the best of our knowledge, no study has linked FAA with EEF to examine whether FAA could be a potential neural indicator of EEF. In the present study, 47 participants ( M age  = 22...
June 27, 2023: Laterality
https://read.qxmd.com/read/37211653/laterality-indices-consensus-initiative-lici-a-delphi-expert-survey-report-on-recommendations-to-record-assess-and-report-asymmetry-in-human-behavioural-and-brain-research
#20
JOURNAL ARTICLE
Guy Vingerhoets, Helena Verhelst, Robin Gerrits, Nicholas Badcock, Dorothy V M Bishop, David Carey, Jason Flindall, Gina Grimshaw, Lauren Julius Harris, Markus Hausmann, Marco Hirnstein, Lutz Jäncke, Marc Joliot, Karsten Specht, René Westerhausen
Laterality indices (LIs) quantify the left-right asymmetry of brain and behavioural variables and provide a measure that is statistically convenient and seemingly easy to interpret. Substantial variability in how structural and functional asymmetries are recorded, calculated, and reported, however, suggest little agreement on the conditions required for its valid assessment. The present study aimed for consensus on general aspects in this context of laterality research, and more specifically within a particular method or technique (i...
May 21, 2023: Laterality
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