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Gori B, Grippo A, Focardi M, Lolli F. The Italian version of Edinburgh Handedness Inventory: Translation, transcultural adaptation, and validation in healthy subjects. Laterality 2024; 29:151-168. [PMID: 38415990 DOI: 10.1080/1357650x.2024.2315851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 01/04/2024] [Indexed: 02/29/2024]
Abstract
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. LQs from the twenty- and the ten-item original inventories were also compared. We conducted a factorial analysis. Mcdonald's Omega tested internal consistency. The prevalence of left-handedness was 6.4%, consistent with prior findings in Italian samples and other EHI translations. Age was the only socio-demographic variable that significantly affected the LQ. The internal consistency of the Italian EHI was excellent. Handedness is a feature of several cognitive functions and some neuropsychological diseases; it is influenced by socio-demographic and cultural factors and the instrument used to assess it. To provide a consistent and comparable evaluation of the construct, we recommend using this validated Italian translation of the EHI.
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Affiliation(s)
- Benedetta Gori
- SODc Neurophysiopathology, Dipartimento Neuromuscolo-Scheletrico e degli Organi di Senso, AOU Careggi University Hospital, Florence, Italy
| | - Antonello Grippo
- SODc Neurophysiopathology, Dipartimento Neuromuscolo-Scheletrico e degli Organi di Senso, AOU Careggi University Hospital, Florence, Italy
- IRCCS Fondazione don Carlo Gnocchi, Firenze, Italy
| | - Martina Focardi
- UOC Medicina legale, AOU Careggi University Hospital, Florence, Italy
| | - Francesco Lolli
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche, University of Florence, Florence, Italy
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Papadatou-Pastou M, Sampanis P, Koumzis I, Stefanopoulou S, Sousani D, Tsigkou A, Badcock NA. Cerebral laterality of writing in right- and left- handers: A functional transcranial Doppler ultrasound study. Eur J Neurosci 2022; 56:3921-3937. [PMID: 35636946 DOI: 10.1111/ejn.15723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 02/20/2022] [Accepted: 04/29/2022] [Indexed: 11/30/2022]
Abstract
The cerebral lateralization of written language has received very limited research attention in comparison to the wealth of studies on the cerebral lateralization of oral language. The purpose of the present study was to further our understanding of written language lateralization, by elucidating the relative contribution of language and motor functions. We compared written word generation with a task that has equivalent visuomotor demands but does not include language: the repeated drawing of symbols. We assessed cerebral laterality using functional transcranial Doppler ultrasound (fTCD), a non-invasive, perfusion-sensitive neuroimaging technique in 23 left- and 31 right-handed participants. Findings suggest that the linguistic aspect of written word generation recruited more left-hemispheric areas during writing, in right-handers compared to left-handers. This difference could be explained by greater variability in cerebral laterality patterns within left-handers or the possibility that the areas subserving language in left-handers are broader than in right-handers. Another explanation is that the attentional demands of the more novel symbol copying task (compared to writing) contributed more right-hemispheric activation in right-handers, but this could not be captured in left-handers due to ceiling effects. Future work could investigate such attentional demands using both simple and complex stimuli in the copying condition.
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Affiliation(s)
- Marietta Papadatou-Pastou
- School of Education, National and Kapodistrian University of Athens, Athens, Greece.,Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Panagiotis Sampanis
- Psychology Department, School of Social Sciences, Birmingham City University, The Curzon Building, Birmingham, United Kingdom
| | - Ioannis Koumzis
- School of Education, National and Kapodistrian University of Athens, Athens, Greece
| | - Sofia Stefanopoulou
- School of Education, National and Kapodistrian University of Athens, Athens, Greece
| | - Dionysia Sousani
- School of Education, National and Kapodistrian University of Athens, Athens, Greece
| | - Athina Tsigkou
- School of Education, National and Kapodistrian University of Athens, Athens, Greece
| | - Nicholas A Badcock
- School of Psychological Science, University of Western Australia,, Crawley, Western Australia, Australia.,Department of Cognitive Science, ARC Centre of Excellence in Cognition and its Disorders, Macquarie University, 16 University Avenue, North Ryde, New South Wales, Australia
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Fan G, Carlson KD, Thomas RD. Individual Differences in Cognitive Constructs: A Comparison Between American and Chinese Culture Groups. Front Psychol 2021; 12:614280. [PMID: 34220604 PMCID: PMC8250834 DOI: 10.3389/fpsyg.2021.614280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 05/26/2021] [Indexed: 11/26/2022] Open
Abstract
Previous studies on human cognition show that people with different cultural backgrounds may differ in various ways. However, there are other unexplored possibilities for cultural differences including degree of handedness thought to reflect hemispheric coordination, reliance on verbal versus visual representation in problem solving, and working memory capacity both spatial and operational. We assessed each of these using the Edinburgh scale, a validated scale of style of processing, and two automatic working memory span tasks. Participants were either native Chinese students (who spoke Mandarin) or American students. Data showed that culture impacted the set of measures but gender did not and these factors did not interact. Chinese and American students showed the largest difference in their operational working memory. We also examined the pattern of correlations among the measures across the two groups and found differences due to cultural group as well.
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Affiliation(s)
- Gaojie Fan
- Center for Computation & Technology, Louisiana State University, Baton Rouge, LA, United States
| | - Krista D Carlson
- Department of Psychology, Miami University, Oxford, OH, United States
| | - Robin D Thomas
- Department of Psychology, Miami University, Oxford, OH, United States
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Ruck L, Schoenemann PT. Handedness measures for the Human Connectome Project: Implications for data analysis. Laterality 2020; 26:584-606. [PMID: 33373549 DOI: 10.1080/1357650x.2020.1866001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Open data initiatives such as the UK Biobank and Human Connectome Project provide researchers with access to neuroimaging, genetic, and other data for large samples of left-and right-handed participants, allowing for more robust investigations of handedness than ever before. Handedness inventories are universal tools for assessing participant handedness in these large-scale neuroimaging contexts. These self-report measures are typically used to screen and recruit subjects, but they are also widely used as variables in statistical analyses of fMRI and other data. Recent investigations into the validity of handedness inventories, however, suggest that self-report data from these inventories might not reflect hand preference/performance as faithfully as previously thought. Using data from the Human Connectome Project, we assessed correspondence between three handedness measures - the Edinburgh Handedness Inventory (EHI), the Rolyan 9-hole pegboard, and grip strength - in 1179 healthy subjects. We show poor association between the different handedness measures, with roughly 10% of the sample having at least one behavioural measure which indicates hand-performance bias opposite to the EHI score, and over 65% of left-handers having one or more mismatched handedness scores. We discuss implications for future work, urging researchers to critically consider direction, degree, and consistency of handedness in their data.
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Affiliation(s)
- Lana Ruck
- Cognitive Science Program, Indiana University, Bloomington IN, USA.,Department of Anthropology, Indiana University, Bloomington IN, USA.,Stone Age Institute, Center for Research into the Anthropological Foundations of Technology (CRAFT), Indiana University, Bloomington, IN, USA
| | - P Thomas Schoenemann
- Cognitive Science Program, Indiana University, Bloomington IN, USA.,Department of Anthropology, Indiana University, Bloomington IN, USA.,Stone Age Institute, Center for Research into the Anthropological Foundations of Technology (CRAFT), Indiana University, Bloomington, IN, USA
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Unmasking the relevance of hemispheric asymmetries—Break on through (to the other side). Prog Neurobiol 2020; 192:101823. [DOI: 10.1016/j.pneurobio.2020.101823] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/17/2020] [Accepted: 05/13/2020] [Indexed: 12/21/2022]
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Malaia E, Wilbur RB. Visual and linguistic components of short-term memory: Generalized Neural Model (GNM) for spoken and sign languages. Cortex 2019; 112:69-79. [DOI: 10.1016/j.cortex.2018.05.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/02/2018] [Accepted: 05/29/2018] [Indexed: 10/14/2022]
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Subject preference emerges as cross-modal strategy for linguistic processing. Brain Res 2018; 1691:105-117. [PMID: 29627484 DOI: 10.1016/j.brainres.2018.03.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 01/30/2018] [Accepted: 03/24/2018] [Indexed: 11/23/2022]
Abstract
Research on spoken languages has identified a "subject preference" processing strategy for tackling input that is syntactically ambiguous as to whether a sentence-initial NP is a subject or object. The present study documents that the "subject preference" strategy is also seen in the processing of a sign language, supporting the hypothesis that the "subject"-first strategy is universal and not dependent on the language modality (spoken vs. signed). Deaf signers of Austrian Sign Language (ÖGS) were shown videos of locally ambiguous signed sentences in SOV and OSV word orders. Electroencephalogram (EEG) data indicated higher cognitive load in response to OSV stimuli (i.e. a negativity for OSV compared to SOV), indicative of syntactic reanalysis cost. A finding that is specific to the visual modality is that the ERP (event-related potential) effect reflecting linguistic reanalysis occurred earlier than might have been expected, that is, before the time point when the path movement of the disambiguating sign was visible. We suggest that in the visual modality, transitional movement of the articulators prior to the disambiguating verb position or co-occurring non-manual (face/body) markings were used in resolving the local ambiguity in ÖGS. Thus, whereas the processing strategy of "subject preference" is cross-modal at the linguistic level, the cues that enable the processor to apply that strategy differ in signing as compared to speech.
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How right is left? Handedness modulates neural responses during morphosyntactic processing. Brain Res 2017; 1669:27-43. [DOI: 10.1016/j.brainres.2017.05.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/15/2017] [Accepted: 05/21/2017] [Indexed: 12/17/2022]
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Beaton AA, Mutinelli S, Corr PJ. Fractionating negative and positive affectivity in handedness: Insights from the Reinforcement Sensitivity Theory of personality. Laterality 2016; 22:419-444. [DOI: 10.1080/1357650x.2016.1213274] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Edlin JM, Leppanen ML, Fain RJ, Hackländer RP, Hanaver-Torrez SD, Lyle KB. On the use (and misuse?) of the Edinburgh Handedness Inventory. Brain Cogn 2015; 94:44-51. [DOI: 10.1016/j.bandc.2015.01.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 01/08/2015] [Accepted: 01/10/2015] [Indexed: 10/24/2022]
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