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Packheiser J, Schmitz J, Berretz G, Carey DP, Paracchini S, Papadatou-Pastou M, Ocklenburg S. Four meta-analyses across 164 studies on atypical footedness prevalence and its relation to handedness. Sci Rep 2020; 10:14501. [PMID: 32879356 PMCID: PMC7468297 DOI: 10.1038/s41598-020-71478-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 08/14/2020] [Indexed: 02/06/2023] Open
Abstract
Human lateral preferences, such as handedness and footedness, have interested researchers for decades due to their pronounced asymmetries at the population level. While there are good estimates on the prevalence of handedness in the population, there is no large-scale estimation on the prevalence of footedness. Furthermore, the relationship between footedness and handedness still remains elusive. Here, we conducted meta-analyses with four different classification systems for footedness on 145,135 individuals across 164 studies including new data from the ALSPAC cohort. The study aimed to determine a reliable point estimate of footedness, to study the association between footedness and handedness, and to investigate moderating factors influencing footedness. We showed that the prevalence of atypical footedness ranges between 12.10% using the most conservative criterion of left-footedness to 23.7% including all left- and mixed-footers as a single non-right category. As many as 60.1% of left-handers were left-footed whereas only 3.2% of right-handers were left-footed. Males were 4.1% more often non-right-footed compared to females. Individuals with psychiatric and neurodevelopmental disorders exhibited a higher prevalence of non-right-footedness. Furthermore, the presence of mixed-footedness was higher in children compared to adults and left-footedness was increased in athletes compared to the general population. Finally, we showed that footedness is only marginally influenced by cultural and social factors, which play a crucial role in the determination of handedness. Overall, this study provides new and useful reference data for laterality research. Furthermore, the data suggest that footedness is a valuable phenotype for the study of lateral motor biases, its underlying genetics and neurodevelopment.
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Affiliation(s)
- Julian Packheiser
- Institute of Cognitive Neuroscience, Biopsychology, Department of Psychology, Ruhr University Bochum, Universitätsstraße 150, 44780, Bochum, Germany.
| | - Judith Schmitz
- School of Medicine, University of St Andrews, St Andrews, UK
| | - Gesa Berretz
- Institute of Cognitive Neuroscience, Biopsychology, Department of Psychology, Ruhr University Bochum, Universitätsstraße 150, 44780, Bochum, Germany
| | - David P Carey
- Perception, Action and Memory Research Group, School of Psychology, Bangor University, Bangor, UK
| | | | - Marietta Papadatou-Pastou
- School of Education, Department of Primary Education, National and Kapodistrian University of Athens, Athens, Greece
| | - Sebastian Ocklenburg
- Institute of Cognitive Neuroscience, Biopsychology, Department of Psychology, Ruhr University Bochum, Universitätsstraße 150, 44780, Bochum, Germany
- Department of Psychology, University of Duisburg-Essen, Essen, Germany
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Atypical lateralization in neurodevelopmental and psychiatric disorders: What is the role of stress? Cortex 2020; 125:215-232. [PMID: 32035318 DOI: 10.1016/j.cortex.2019.12.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/07/2019] [Accepted: 12/23/2019] [Indexed: 02/08/2023]
Abstract
Hemispheric asymmetries are a major organizational principle of the human brain. In different neurodevelopmental and psychiatric disorders, like schizophrenia, autism spectrum disorders, depression, dyslexia and posttraumatic stress disorder, functional and/or structural hemispheric asymmetries are altered compared to healthy controls. The question, why these disorders all share the common characteristic of altered hemispheric asymmetries despite vastly different etiologies and symptoms remains one of the unsolved mysteries of laterality research. This review is aimed at reviewing potential reasons for why atypical lateralization is so common in many neurodevelopmental and psychiatric disorders. To this end, we review the evidence for overlaps in the genetic and non-genetic factors involved in the ontogenesis of different disorders and hemispheric asymmetries. While there is evidence for genetic overlap between different disorders, only few asymmetry-related loci have also been linked to disorders and importantly, those effects are mostly specific to single disorders. However, there is evidence for shared non-genetic influences between disorders and hemispheric asymmetries. Most neurodevelopmental and psychiatric disorders show alterations in the hypothalamic-pituitary adrenocortical (HPA) axis and maternal as well as early life stress have been implicated in their etiology. Stress has also been suggested to affect hemispheric asymmetries. We propose a model in which early life stress as well as chronic stress not only increases the risk for psychiatric and neurodevelopmental disorders but also changes structural and functional hemispheric asymmetries leading to the aberrant lateralization patterns seen in these disorders. Thus, pathology-related changes in hemispheric asymmetries are not a factor causing disorders, but rather a different phenotype that is affected by partly overlapping ontogenetic factors, primarily stress.
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A large-scale population study of early life factors influencing left-handedness. Sci Rep 2019; 9:584. [PMID: 30679750 PMCID: PMC6345846 DOI: 10.1038/s41598-018-37423-8] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/29/2018] [Indexed: 12/27/2022] Open
Abstract
Hand preference is a conspicuous variation in human behaviour, with a worldwide proportion of around 90% of people preferring to use the right hand for many tasks, and 10% the left hand. We used the large cohort of the UK biobank (~500,000 participants) to study possible relations between early life factors and adult hand preference. The probability of being left-handed was affected by the year and location of birth, likely due to cultural effects. In addition, hand preference was affected by birthweight, being part of a multiple birth, season of birth, breastfeeding, and sex, with each effect remaining significant after accounting for all others. Analysis of genome-wide genotype data showed that left-handedness was very weakly heritable, but shared no genetic basis with birthweight. Although on average left-handers and right-handers differed for a number of early life factors, all together these factors had only a minimal predictive value for individual hand preference.
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Schmitz J, Metz GA, Güntürkün O, Ocklenburg S. Beyond the genome—Towards an epigenetic understanding of handedness ontogenesis. Prog Neurobiol 2017; 159:69-89. [DOI: 10.1016/j.pneurobio.2017.10.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 09/18/2017] [Accepted: 10/26/2017] [Indexed: 12/13/2022]
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Ocklenburg S, Korte SM, Peterburs J, Wolf OT, Güntürkün O. Stress and laterality – The comparative perspective. Physiol Behav 2016; 164:321-9. [DOI: 10.1016/j.physbeh.2016.06.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/30/2016] [Accepted: 06/15/2016] [Indexed: 12/28/2022]
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Salas CE, Castro O, Yuen KS, Radovic D, d'Avossa G, Turnbull OH. 'Just can't hide it': a behavioral and lesion study on emotional response modulation after right prefrontal damage. Soc Cogn Affect Neurosci 2016; 11:1528-40. [PMID: 27317928 PMCID: PMC5040916 DOI: 10.1093/scan/nsw075] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 05/16/2016] [Accepted: 05/18/2016] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Historically, emotion regulation problems have been reported as a common consequence of right prefrontal cortex (rPFC) damage. It has been proposed that the rPFC, particularly the rIFG, has a key role inhibiting prepotent reflexive actions, thus contributing to emotion regulation and self-regulation. This study is the first to directly explore this hypothesis, by testing whether damage to the rIFG compromises the voluntary modulation of emotional responses, and whether performance on inhibition tasks is associated with emotion regulation. METHOD 10 individuals with unilateral right prefrontal damage and 15 matched healthy controls were compared on a well-known response modulation task. During the task participants had to amplify and suppress their facial emotional expressions, while watching film clips eliciting amusement. Measures of executive control, emotion regulation strategies usage and symptomatology were also collected. RESULTS As a group, individuals with rPFC damage presented a significantly reduced range of response modulation compared with controls. In addition, performance in the suppression task was associated with measures of cognitive inhibition and suppression usage. Interestingly, these effects were driven primarily by a subgroup of individuals with rPFC damage, all of whom also had damage to the right posterior insula, and who presented a marked impairment in suppressing facial emotional expressions.
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Affiliation(s)
- Christian E Salas
- Laboratorio de Neurociencia Cognitiva y Social (LaNCyS), Facultad de Psicologia, Universidad Diego Portales, Vergara 275, Santiago, Chile School of Psychology, Brigantia Building, Bangor University, Bangor, Wales LL57 2AS, UK Gwynedd
| | - Osvaldo Castro
- Escuela De Terapia Ocupacional, Universidad Autonoma De Chile, Ricardo Morales, San Miguel 3369, Chile, Santiago
| | - Kenneth Sl Yuen
- Neuroimaging Centre, Johannes Gutenberg University Medical Center, Langenbeckstr. 1 Geb. 701, EG, R. 0.035, Mainz 55131, Germany
| | | | - Giovanni d'Avossa
- School of Psychology, Brigantia Building, Bangor University, Bangor, Wales LL57 2AS, UK Gwynedd
| | - Oliver H Turnbull
- School of Psychology, Brigantia Building, Bangor University, Bangor, Wales LL57 2AS, UK Gwynedd
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Who’s Left in the Family? Laterality 2016. [DOI: 10.1016/b978-0-12-801239-0.00003-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Neurodevelopmental Outcomes and Neural Mechanisms Associated with Non-right Handedness in Children Born Very Preterm. J Int Neuropsychol Soc 2015; 21:610-21. [PMID: 26328609 PMCID: PMC4792512 DOI: 10.1017/s1355617715000715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Non-right handedness (NRH) is reportedly more common in very preterm (VPT; <32 weeks' gestation) children compared with term-born peers, but it is unclear whether neonatal brain injury or altered brain morphology and microstructure underpins NRH in this population. Given that NRH has been inconsistently reported to be associated with cognitive and motor difficulties, this study aimed to examine associations between handedness and neurodevelopmental outcomes in VPT 7-year-olds. Furthermore, the relationship between neonatal brain injury and integrity of motor tracts (corpus callosum and corticospinal tract) with handedness at age 7 years in VPT children was explored. One hundred seventy-five VPT and 69 term-born children completed neuropsychological and motor assessments and a measure of handedness at 7 years' corrected age. At term-equivalent age, brain injury on MRI was assessed and diffusion tensor measures were obtained for the corpus callosum and posterior limb of the internal capsule. There was little evidence of stronger NRH in the VPT group compared with term controls (regression coefficient [b] -1.95, 95% confidence interval [-5.67, 1.77]). Poorer academic and working memory outcomes were associated with stronger NRH in the VPT group. While there was little evidence that neonatal unilateral brain injury was associated with stronger NRH, increased area and fractional anisotropy of the corpus callosum splenium were predictive of stronger NRH in the VPT group. VPT birth may alter the relationship between handedness and academic outcomes, and neonatal corpus callosum integrity predicts hand preference in VPT children at school age. (JINS, 2015, 21, 610-621).
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Van der Elst W, Wassenberg R, Meijs C, Hurks P, Van Boxtel M, Jolles J. On the mediating effects of pregnancy and birth stress events on the relation between lateral preferences and cognitive functioning in healthy school-aged children. J Clin Exp Neuropsychol 2011; 33:548-58. [DOI: 10.1080/13803395.2010.537647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Wim Van der Elst
- a Faculty of Medicine and Life Sciences , Maastricht University , Maastricht, The Netherlands
| | - Renske Wassenberg
- b Maastricht University Medical Centre , Maastricht, The Netherlands
| | - Celeste Meijs
- a Faculty of Medicine and Life Sciences , Maastricht University , Maastricht, The Netherlands
| | - Petra Hurks
- c Faculty of Psychology and Neuroscience, Department of Neuropsychology & Psychopharmacology , Maastricht University , Maastricht, The Netherlands
| | - Martin Van Boxtel
- a Faculty of Medicine and Life Sciences , Maastricht University , Maastricht, The Netherlands
| | - Jelle Jolles
- d AZIRE Research Institute and Faculty of Psychology & Education , VU Universiteit Amsterdam , Amsterdam, The Netherlands
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