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McCann SJH. State Resident Handedness, Ideology, and Political Party Preference: U.S. Presidential Election Outcomes Over the Past 60 Years. Psychol Rep 2024:332941241227521. [PMID: 38214567 DOI: 10.1177/00332941241227521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Pearson correlation, partial correlation, and multiple regression strategies determined the degree to which estimates of the level of left-handedness in each of the 48 contiguous American states related to citizen political ideology and to Democratic-Republican presidential popular vote over the past 60 years. Higher state levels of left-handedness were associated significantly with liberal ideology in each of the presidential election years from 1964 to 2016. Comparable ideology data were not available for 2020. Higher state levels of left-handedness also were associated with a greater degree of Democratic candidate popular vote support in each of the presidential election years from 1964 to 2020 except for 1976. The mean size of these 28 significant Pearson correlations involving the two political criteria was .62 (SD = .12) with a range of .38-.80, indicating handedness alone could account for a mean of 40.1% (SD = 14.9) of the variance in the two political preference variables. Corresponding multiple regressions showed that when state-level Big Five personality, White population percent, urbanization, and income variables were given the opportunity to enter the equations, handedness still emerged with a significant regression coefficient in 26 of the 28 equations. The two exceptions occurred for 1968 with either political preference criterion. It is speculated that such relations are grounded in hypothesized but poorly understood genetic links between handedness, personality, and political beliefs and attitudes, and, that a foundational genetic predisposition to left-handedness in a population may have much greater impact on correlates than overt levels of left-handedness.
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Li X, Jin M, Zhang N, Hongman W, Fu L, Qi Q. Neural correlates of fine motor grasping skills: Longitudinal insights into motor cortex activation using fNIRS. Brain Behav 2024; 14:e3383. [PMID: 38376039 PMCID: PMC10784192 DOI: 10.1002/brb3.3383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/01/2023] [Accepted: 12/20/2023] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Motor learning is essential for performing specific tasks and progresses through distinct stages, including the rapid learning phase (initial skill acquisition), the consolidation phase (skill refinement), and the stable performance phase (skill mastery and maintenance). Understanding the cortical activation dynamics during these stages can guide targeted rehabilitation interventions. METHODS In this longitudinal randomized controlled trial, functional near-infrared spectroscopy was used to explore the temporal dynamics of cortical activation in hand-related motor learning. Thirty-one healthy right-handed individuals were randomly assigned to perform either easy or intricate motor tasks with their non-dominant hand over 10 days. We conducted 10 monitoring sessions to track cortical activation in the right hemisphere (according to lateralization principles, the primary hemisphere for motor control) and evaluated motor proficiency concurrently. RESULTS The study delineated three stages of nondominant hand motor learning: rapid learning (days 1 and 2), consolidation (days 3-7), and stable performance (days 8-10). There was a power-law enhancement of motor skills correlated with learning progression. Sustained activation was observed in the supplementary motor area (SMA) and parietal lobe (PL), whereas activation in the right primary motor cortex (M1R) and dorsolateral prefrontal cortex (PFCR) decreased. These cortical activation patterns exhibited a high correlation with the augmentation of motor proficiency. CONCLUSIONS The findings suggest that early rehabilitation interventions, such as transcranial magnetic stimulation and transcranial direct current stimulation (tDCS), could be optimally directed at M1 and PFC in the initial stages. In contrast, SMA and PL can be targeted throughout the motor learning process. This research illuminates the path for developing tailored motor rehabilitation interventions based on specific stages of motor learning. NEW AND NOTEWORTHY In an innovative approach, our study uniquely combines a longitudinal design with the robustness of generalized estimating equations (GEEs). With the synergy of functional near-infrared spectroscopy (fNIRS) and the Minnesota Manual Dexterity Test (MMDT) paradigm, we precisely trace the evolution of neural resources during complex, real-world fine-motor task learning. Centering on right-handed participants using their nondominant hand magnifies the intricacies of right hemisphere spatial motor processing. We unravel the brain's dynamic response throughout motor learning stages and its potent link to motor skill enhancement. Significantly, our data point toward the early-phase rehabilitation potential of TMS and transcranial direct current stimulation on the M1 and PFC regions. Concurrently, SMA and PL appear poised to benefit from ongoing interventions during the entire learning curve. Our findings carve a path for refined motor rehabilitation strategies, underscoring the importance of timely noninvasive brain stimulation treatments.
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Affiliation(s)
- Xiaoli Li
- Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center)ShanghaiChina
| | - Minxia Jin
- Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center)ShanghaiChina
| | - Nan Zhang
- Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center)ShanghaiChina
| | - Wei Hongman
- Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center)ShanghaiChina
| | - LianHui Fu
- Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center)ShanghaiChina
| | - Qi Qi
- Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center)ShanghaiChina
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Packheiser J, Papadatou-Pastou M, Koufaki A, Paracchini S, Stein CC, Schmitz J, Ocklenburg S. Elevated levels of mixed-hand preference in dyslexia: Meta-analyses of 68 studies. Neurosci Biobehav Rev 2023; 154:105420. [PMID: 37783301 DOI: 10.1016/j.neubiorev.2023.105420] [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: 08/01/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/04/2023]
Abstract
Since almost a hundred years, psychologists have investigated the link between hand preference and dyslexia. We present a meta-analysis to determine whether there is indeed an increase in atypical hand preference in dyslexia. We included studies used in two previous meta-analyses (Bishop, 1990; Eglinton & Annett, 1994) as well as studies identified through PubMed MEDLINE, PsycInfo, Google Scholar, and Web of Science up to August 2022. K = 68 studies (n = 4660 individuals with dyslexia; n = 40845 controls) were entered into three random effects meta-analyses using the odds ratio as the effect size (non-right-handers; left-handers; mixed-handers vs. total). Evidence of elevated levels of atypical hand preference in dyslexia emerged that were especially pronounced for mixed-hand preference (OR = 1.57), although this category was underdefined. Differences in (direction or degree) of hand skill or degree of hand preference could not be assessed as no pertinent studies were located. Our findings allow for robust conclusions only for a relationship of mixed-hand preference with dyslexia.
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Affiliation(s)
- Julian Packheiser
- Social Brain Lab, Netherlands Institute for Neuroscience, Amsterdam, the Netherlands
| | - Marietta Papadatou-Pastou
- School of Education, National and Kapodistrian University of Athens, Athens, Greece; BioMedical Research Foundation of the Academy of Athens, Athens, Greece.
| | - Angeliki Koufaki
- School of Education, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Clara C Stein
- Division of Forensic Psychiatry, Department of Psychiatry, Psychotherapy, and Preventive Medicine, LWL-University Hospital Bochum, Bochum, Germany
| | - Judith Schmitz
- Biological Personality Psychology, Georg-August-University Goettingen, Goettingen, Germany
| | - Sebastian Ocklenburg
- Department of Psychology, Medical School Hamburg, Hamburg, Germany; ICAN Institute for Cognitive and Affective Neuroscience, Medical School Hamburg, Hamburg, Germany; Institute of Cognitive Neuroscience, Biopsychology, Department of Psychology, Ruhr-University Bochum, Bochum, Germany
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4
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Bahari A, Hasani J. Both direction and degree of handedness as influential factors in rumination. Laterality 2023; 28:377-405. [PMID: 37635276 DOI: 10.1080/1357650x.2023.2250078] [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: 10/31/2022] [Accepted: 08/15/2023] [Indexed: 08/29/2023]
Abstract
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. Considering four different classifications of handedness, a series of one-way ANOVAs was conducted to investigate any differences between the handedness groups. Besides, linear regression models were used to predict depression or rumination scores among the whole study sample, left-handers, and right-handers. Consistency of handedness predicted rumination among right-handers (but not left-handers), with a direct association between consistency and brooding/total rumination scores. Also, consistent left-handers and consistent right-handers showed higher brooding scores than inconsistent right-handers. Overall, the results supported the significant influence of both direction and consistency of handedness on individual differences in rumination and suggested consistent- and left-handedness as perpetuating factors for ruminative response style.
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Affiliation(s)
- Ali Bahari
- Department of Clinical Psychology, Faculty of Psychology and Education, Kharazmi University, Tehran, Iran
| | - Jafar Hasani
- Department of Clinical Psychology, Faculty of Psychology and Education, Kharazmi University, Tehran, Iran
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Raaf N, Westerhausen R. Hand preference and the corpus callosum: Is there really no association? NEUROIMAGE: REPORTS 2023. [DOI: 10.1016/j.ynirp.2023.100160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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6
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Santaniello G, Ferré P, Sanchez-Carmona A, Huete-Pérez D, Albert J, Hinojosa JA. Gamma Oscillations in the Temporal Pole Reflect the Contribution of Approach and Avoidance Motivational Systems to the Processing of Fear and Anger Words. Front Psychol 2022; 12:802290. [PMID: 35140664 PMCID: PMC8820231 DOI: 10.3389/fpsyg.2021.802290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/15/2021] [Indexed: 11/13/2022] Open
Abstract
Prior reports suggest that affective effects in visual word processing cannot be fully explained by a dimensional perspective of emotions based on valence and arousal. In the current study, we focused on the contribution of approach and avoidance motivational systems that are related to different action components to the processing of emotional words. To this aim, we compared frontal alpha asymmetries and brain oscillations elicited by anger words associated with approach (fighting) motivational tendencies, and fear words that may trigger either avoidance (escaping), approach (fighting) or no (freezing) action tendencies. The participants’ task was to make decisions about approaching or distancing from the concepts represented by words. The results of cluster-based and beamforming analyses revealed increased gamma power band synchronization for fear words relative to anger words between 725 and 750 ms, with an estimated neural origin in the temporal pole. These findings were interpreted to reflect a conflict between different action tendencies underlying the representation of fear words in semantic and emotional memories, when trying to achieve task requirements. These results are in line with the predictions made by the fear-hinders-action hypothesis. Additionally, current data highlights the contribution of motivational features to the representation and processing of emotional words.
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Affiliation(s)
- Gerardo Santaniello
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
| | - Pilar Ferré
- Universitat Rovira i Virgili, Department of Psychology, Research Center for Behavior Assessment (CRAMC), Tarragona, Spain
| | | | - Daniel Huete-Pérez
- Universitat Rovira i Virgili, Department of Psychology, Research Center for Behavior Assessment (CRAMC), Tarragona, Spain
| | - Jacobo Albert
- Facultad de Psicología, Universidad Autónoma de Madrid, Madrid, Spain
| | - José A Hinojosa
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
- Facultad de Psicología, Universidad Complutense de Madrid, Madrid, Spain
- Centro de Investigación Nebrija en Cognición (CINC), Universidad Nebrija, Madrid, Spain
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Kuderer S, Voracek M, Kirchengast S, Rotter CE. The Handedness Index Practical Task (HI 20): An economic behavioural measure for assessing manual preference. Laterality 2021; 27:273-307. [PMID: 34758712 DOI: 10.1080/1357650x.2021.1990312] [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: 10/19/2022]
Abstract
ABSTRACTBecause self-report hand preference measures are limited to investigating cognitive aspects of manual laterality, valid, easy-to-administer and economic behavioural methods are needed for capturing the motoric component of handedness. Therefore, this study introduces the Handedness Index Practical Task (HI20) and tests it in a sample of 206 students (Mage = 23.79 years, SDage = 3.01 years), half of whom were self-specified left-handers. After confirming good reliabilities at the subscale and total scale levels, k-means cluster analysis allowed an empirically based partitioning of test subjects into left- (n = 72), mixed- (n = 23) and right-handers (n = 111). To validate this categorization and the HI20 index, data were compared with the Edinburgh Handedness Inventory (EHI), EHI-short, HI22 and hand grip strength. The congruency between the HI20 clusters and alternative categorizations ranged from 95.6% to 84.0%, while the clusters explained large portions of variance in grip strength differences. The HI20 sub- and total scores showed strong correlations with other measures of lateral preference. Altogether, the freely available HI20 emerges as a reliable and valid alternative for behavioural handedness assessment, whose power lies in explaining differential hand use patterns and enabling fine-grained examinations of handedness.
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Affiliation(s)
- Sonja Kuderer
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Martin Voracek
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Sylvia Kirchengast
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Christoph E Rotter
- Department of English and American Studies, University of Vienna, Vienna, Austria
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8
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Huber KB, Marsolek CJ. Do cerebral motivational asymmetries mediate the relationship between handedness and personality? Laterality 2021; 27:21-56. [PMID: 34238115 DOI: 10.1080/1357650x.2021.1942483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Handedness has long been tied to personality, but detailed explanations for the association are lacking. Importantly for purposes of theory development, measures of approach and withdrawal associated with Big Five personality traits have also been traced back to activity in brain areas that relate to handedness. Specifically, increased right-hemisphere frontal activity appears to be linked to both withdrawal motivation and left/inconsistent-handedness, while increased left-hemisphere frontal activity is associated with approach motivation and right/consistent-handedness. Cerebral motivational asymmetries therefore present one plausible mechanism by which approach and withdrawal motivation could mediate the relationship between handedness and personality. We tested this possibility in a large online study (N = 499) in which participants completed multiple survey measures. Results indicated that approach/withdrawal motivation partially accounts for relationships between handedness and personality.
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Affiliation(s)
- Katie B Huber
- Psychological Sciences Department, University of Wisconsin-River Falls, River Falls, WI, USA.,Department of Psychology, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Chad J Marsolek
- Department of Psychology, University of Minnesota-Twin Cities, Minneapolis, MN, USA
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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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10
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Serrien DJ, Spapé MM. Space, time and number: common coding mechanisms and interactions between domains. PSYCHOLOGICAL RESEARCH 2021; 86:364-374. [PMID: 33755798 PMCID: PMC8885535 DOI: 10.1007/s00426-021-01503-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 03/05/2021] [Indexed: 11/28/2022]
Abstract
Space, time and number are key dimensions that underlie how we perceive, identify and act within the environment. They are interconnected in our behaviour and brain. In this study, we examined interdependencies between these dimensions. To this end, left- and right-handed participants performed an object collision task that required space–time processing and arithmetic tests that involved number processing. Handedness of the participants influenced collision detection with left-handers being more accurate than right-handers, which is in line with the premise that hand preference guides individual differences as a result of sensorimotor experiences and distinct interhemispheric integration patterns. The data further showed that successful collision detection was a predictor for arithmetic achievement, at least in right-handers. These findings suggest that handedness plays a mediating role in binding information processing across domains, likely due to selective connectivity properties within the sensorimotor system that is guided by hemispheric lateralisation patterns.
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Affiliation(s)
| | - Michiel M Spapé
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
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11
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Handedness, intelligence, visual-perceptual and motor functions in young adults. CURRENT PSYCHOLOGY 2021. [DOI: 10.1007/s12144-021-01651-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Richards G, Beking T, Kreukels BPC, Geuze RH, Beaton AA, Groothuis T. An examination of the influence of prenatal sex hormones on handedness: Literature review and amniotic fluid data. Horm Behav 2021; 129:104929. [PMID: 33454315 DOI: 10.1016/j.yhbeh.2021.104929] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 01/27/2023]
Abstract
Competing theories have posited roles for foetal androgen exposure in the development of human handedness. However, due to practical and ethical considerations, few studies have used hormonal measures to examine this possibility. The current paper reviews this literature and reveals a generally inconsistent pattern of results. We also present data from a longitudinal study of prenatal sex hormone exposure and subsequent handedness. More specifically, we examine correlations between testosterone and estradiol measured from second trimester amniotic fluid and hand preference (Dutch language version of the Edinburgh Handedness Inventory) and hand skill asymmetry (pegboard task) measured at 15 years of age. Prenatal sex hormone exposure was not associated with the direction of hand preference in either males or females. However, in females, high levels of prenatal testosterone were associated with weaker lateralisation of hand skill, and high levels of prenatal estradiol were associated with weaker hand preference. In addition, high levels of prenatal testosterone were associated with increased task duration (i.e., slow hand speed) for the right and left hands of males. The pattern of results observed here is not entirely consistent with any of the main theories linking sex hormones with handedness, suggesting that an association between these variables may be more complex than initially thought.
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Affiliation(s)
- Gareth Richards
- Newcastle University, School of Psychology, Ridley Building 1, Queen Victoria Road, Newcastle upon Tyne NE1 7RU, UK; University of Cambridge, Autism Research Centre, Department of Psychiatry, Douglas House, 18b Trumpington Road, Cambridge CB2 8AH, UK.
| | - Tess Beking
- University of Groningen, Faculty of Behavioural and Social Sciences, Department Clinical & Developmental Neuropsychology, Grote Kruisstraat 2/1, 9712 TS Groningen, the Netherlands; Amsterdam University Medical Center, location VUmc, Department of Medical Psychology, Center of Expertise on Gender Dysphoria, PO Box 7057, 1007 MB Amsterdam, the Netherlands; University of Groningen, Groningen Institute for Evolutionary Life Sciences, Nijenborgh 7, 9747 AG Groningen, the Netherlands
| | - Baudewijntje P C Kreukels
- Amsterdam University Medical Center, location VUmc, Department of Medical Psychology, Center of Expertise on Gender Dysphoria, PO Box 7057, 1007 MB Amsterdam, the Netherlands
| | - Reint H Geuze
- University of Groningen, Faculty of Behavioural and Social Sciences, Department Clinical & Developmental Neuropsychology, Grote Kruisstraat 2/1, 9712 TS Groningen, the Netherlands
| | - Alan A Beaton
- Swansea University, Department of Psychology, School of Human & Health Sciences, Swansea SA2 8PP, UK; Aberystwyth University, Department of Psychology, Aberystwyth SY23 3UX, UK
| | - Ton Groothuis
- University of Groningen, Groningen Institute for Evolutionary Life Sciences, Nijenborgh 7, 9747 AG Groningen, the Netherlands
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Scharoun Benson SM, Williams N, Tucker J, Bryden PJ. How far will you go before switching hands? Handedness on the long pegboard across the lifespan. Dev Psychobiol 2021; 63:1109-1119. [PMID: 33634464 DOI: 10.1002/dev.22112] [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] [Received: 10/05/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 11/09/2022]
Abstract
Handedness is a significant behavioral asymmetry; however, there is debate surrounding the age at which hand preference develops, and little research has been conducted on handedness in older adults. The current study examined performance on the long pegboard, to identify similarities and differences in young children (ages 4-7 years), older children (ages 8-12 years), young adults (ages 18-25 years), and older adults (ages 70+ years). Average time per hole, number of hand switches, and errors were assessed with left- and right-hand starts. A left-right ratio was computed from the long pegboard, along with laterality quotients from the Waterloo Handedness Questionnaire (WHQ). Results revealed faster performance when participants started the task on the right side of the long pegboard with the right-hand, coupled with a later switch to the left-hand. There was a greater number of errors with left-hand starts, and an earlier switch to the right-hand. Age was a significant predictor of the average time per hole and number of errors. Long pegboard ratio and WHQ laterality quotient were only correlated for adults. Together, findings offer insight regarding age-related effects in handedness and support the long pegboard as a useful measure of handedness.
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Affiliation(s)
| | - Nicole Williams
- Departmnt of Kiesniology & Physical Education, Wilfrid Laurier University, Waterloo, ON, Canada
| | - Jessica Tucker
- Departmnt of Kiesniology & Physical Education, Wilfrid Laurier University, Waterloo, ON, Canada
| | - Pamela J Bryden
- Departmnt of Kiesniology & Physical Education, Wilfrid Laurier University, Waterloo, ON, Canada
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Jasper JD, Christman SD, Clarkson E. Predicting interactions in handedness research: The role of integrated versus independent dual-processes. Laterality 2021; 26:607-623. [PMID: 33588695 DOI: 10.1080/1357650x.2021.1879110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Over the past two decades, a new way of looking at handedness has emerged (see Prichard, E., Propper, R. E., & Christman, S. D. (2013). Degree of handedness, but not direction, is a systematic predictor of cognitive performance. Frontiers in Psychology, 4, 1-6), with an emphasis on degree (strong/consistent versus mixed/inconsistent) augmenting the traditional emphasis on direction (left versus right) of handedness. Much of this work has focused on main effects: e.g., inconsistent-handers show higher (or lower) performance than consistent-handers. However, many of these "main effects" are actually nested within higher order interactions: e.g., there are no handedness differences in a baseline/control condition, with handedness differences emerging in an experimental condition. Careful examination, though, of these interactions reveals an intriguing and predictable pattern: for integrated dual processes (e.g., episodic memory encoding versus retrieval), the interactions reflect larger effects in inconsistent-, relative to consistent-, handers. For independent, mutually exclusive dual processes (e.g., approach versus withdrawal), the interactions reflect larger effects in consistent-handers. It is argued that these patterns reflect the relative inability of (i) consistent-handers to integrate dual processes, and (ii) inconsistent-handers to keep independent dual processes separate. We also use this same theory to address higher order interactions involving changes in the experimental context as well as other individual difference factors, and make suggestions for future research.
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Affiliation(s)
- John D Jasper
- Department of Psychology, University of Toledo, Toledo, OH, USA
| | | | - Evan Clarkson
- Department of Psychology, University of Toledo, Toledo, OH, USA
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Baudou E, Nemmi F, Biotteau M, Maziero S, Assaiante C, Cignetti F, Vaugoyeau M, Audic F, Peran P, Chaix Y. Are morphological and structural MRI characteristics related to specific cognitive impairments in neurofibromatosis type 1 (NF1) children? Eur J Paediatr Neurol 2020; 28:89-100. [PMID: 32893091 DOI: 10.1016/j.ejpn.2020.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 06/19/2020] [Accepted: 07/03/2020] [Indexed: 12/18/2022]
Abstract
INTRODUCTION NF1 children have cognitive disorders, especially in executive functions, visuospatial, and language domains, the pathophysiological mechanisms of which are still poorly understood. MATERIALS AND METHODS A correlation study was performed from neuropsychological assessments and brain MRIs of 38 NF1 patients and 42 controls, all right-handed, aged 8-12 years and matched in age and gender. The most discriminating neuropsychological tests were selected to assess their visuospatial, metaphonological and visuospatial working memory abilities. The MRI analyses focused on the presence and location of Unidentified Bright Objects (UBOs) (1), volume analysis (2) and diffusion analysis (fractional anisotropy and mean diffusivity) (3) of the regions of interest including subcortical structures and posterior fossa, as well as shape analysis of subcortical structures (4). The level of attention, intelligence quotient, age and gender of the patients were taken into account in the statistical analysis. Then, we studied how diffusion and volumes parameters were associated with neuropsychological characteristics in NF1 children. RESULTS NF1 children present different brain imaging characteristics compared to the control such as (1) UBOs in 68%, (2) enlarged total intracranial volume, involving all subcortical structures, especially thalamus, (3) increased MD and decreased FA in thalamus, corpus callosum and hippocampus. These alterations are diffuse, without shape involvement. In NF1 group, brain microstructure is all the more altered that volumes are enlarged. However, we fail to find a link between these brain characteristics and neurocognitive scores. CONCLUSION While NF1 patients have obvious pathological brain characteristics, the neuronal substrates of their cognitive deficits are still not fully understood, perhaps due to complex and multiple pathophysiological mechanisms underlying this disorder, as suggested by the heterogeneity observed in our study. However, our results are compatible with an interpretation of NF1 as a diffuse white matter disease.
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Affiliation(s)
- Eloïse Baudou
- Children's Hospital, Toulouse-Purpan University Hospital, Toulouse, France; ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France.
| | - Federico Nemmi
- ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Maëlle Biotteau
- Children's Hospital, Toulouse-Purpan University Hospital, Toulouse, France; ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Stéphanie Maziero
- ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Christine Assaiante
- CNRS, LNC, Aix Marseille Université, Marseille, France; CNRS, Fédération 3C, Aix Marseille Université, Marseille, France
| | - Fabien Cignetti
- CNRS, LNC, Aix Marseille Université, Marseille, France; CNRS, Fédération 3C, Aix Marseille Université, Marseille, France; CNRS, TIMC-IMAG, Université Grenoble Alpes, Grenoble, France
| | - Marianne Vaugoyeau
- CNRS, LNC, Aix Marseille Université, Marseille, France; CNRS, Fédération 3C, Aix Marseille Université, Marseille, France
| | - Frederique Audic
- Service de Neurologie Pédiatrique, CHU, Timone-Enfants, Marseille, France
| | - Patrice Peran
- ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Yves Chaix
- Children's Hospital, Toulouse-Purpan University Hospital, Toulouse, France; ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
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16
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Lyle KB, Grillo MC. Why are consistently-handed individuals more authoritarian? The role of need for cognitive closure. Laterality 2020; 25:490-510. [PMID: 32498598 DOI: 10.1080/1357650x.2020.1765791] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent studies indicate that individuals with consistent hand preference are more authoritarian than individuals whose preference is relatively inconsistent. We explored the role of epistemic needs in the handedness-authoritarianism relationship. Based on findings that consistent individuals are less cognitively flexible than inconsistent individuals, we hypothesized that consistent-handers would report greater need for definite knowledge. To measure this, we administered the revised Need for Cognitive Closure scale to a sample of undergraduates (N = 235), along with measures of handedness consistency and authoritarian submission. Consistent individuals scored significantly higher on authoritarian submission and need for closure. Need for closure fully mediated the relationship between consistency and submission. Consistent individuals also expressed greater prejudice against authoritarian out-groups such as immigrants and liberals. This effect was partially mediated by authoritarian submission. We theorize that consistent-handers' cognitive inflexibility leads them to covet definite knowledge. These individuals turn to authoritarianism because it promises to stifle dissent and protect existing (conventional) knowledge.
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Affiliation(s)
- Keith B Lyle
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, USA
| | - Michael C Grillo
- Department of Political Science, Schreiner University, Kerrville, TX, USA
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17
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Cheng Y, Hegarty M, Chrastil ER. Telling right from right: the influence of handedness in the mental rotation of hands. Cogn Res Princ Implic 2020; 5:25. [PMID: 32494941 PMCID: PMC7270479 DOI: 10.1186/s41235-020-00230-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 05/12/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND This study investigated the impact of handedness on a common spatial abilities task, the mental rotation task (MRT). The influence of a right-handed world was contrasted with people's embodied experience with their own hands by testing both left- and right-handed people on an MRT of right- and left-hand stimuli. An additional consideration is the influence of matching the shape of the hand stimuli with the proprioception of one's own hands. Two orthogonal hypothesis axes were crossed to yield four competing hypotheses. One axis contrasted (i) embodied experience versus (ii) world knowledge; the other axis contrasted (a) the match between the visual image of a hand on the screen and one's own hand versus (b) the resemblance of the shape outline information from the hand stimuli with the proprioception of one's own hands. RESULTS Among people with mixed handedness, right-handers performed more accurately for left-hand stimuli, while left-handers had a trend for higher accuracy for right-hand stimuli. For people with extreme handedness, right-handers outperformed left-handers. Regardless of group, there was no significant variation in performance for left-hand stimuli, with only right-hand stimuli producing significant variation. CONCLUSIONS No hypothesis fully aligned with all the data. For left-hand stimuli, the consistent performance across groups does not provide support for embodied experience, while world knowledge might influence all groups similarly. Alternatively, the within-group variation for mixed-handed people supports embodied experience in the hand MRT, likely processed through visual-proprioceptive integration.
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Affiliation(s)
- You Cheng
- University of California, Santa Barbara, Santa Barbara, CA, USA.
- University of California, Irvine, Irvine, CA, USA.
| | - Mary Hegarty
- University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Elizabeth R Chrastil
- University of California, Santa Barbara, Santa Barbara, CA, USA
- University of California, Irvine, Irvine, CA, USA
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18
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Armitage J, Eerola T. Reaction Time Data in Music Cognition: Comparison of Pilot Data From Lab, Crowdsourced, and Convenience Web Samples. Front Psychol 2020; 10:2883. [PMID: 31969849 PMCID: PMC6960264 DOI: 10.3389/fpsyg.2019.02883] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/05/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- James Armitage
- Department of Music, Durham University, Durham, United Kingdom
| | - Tuomas Eerola
- Department of Music, Durham University, Durham, United Kingdom
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19
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Borhani S, Abiri R, Jiang Y, Berger T, Zhao X. Brain connectivity evaluation during selective attention using EEG-based brain-computer interface. BRAIN-COMPUTER INTERFACES 2019. [DOI: 10.1080/2326263x.2019.1651186] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Soheil Borhani
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, USA
| | - Reza Abiri
- Department of Neurology, University of California, San Francisco/Berkeley, USA
| | - Yang Jiang
- Department of Behavioral Science,College of Medicine, University of Kentucky, Lexington, USA
| | - Taylor Berger
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, USA
| | - Xiaopeng Zhao
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, USA
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20
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Mesagno C, Garvey J, Tibbert SJ, Gröpel P. An Investigation Into Handedness and Choking Under Pressure in Sport. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2019; 90:217-226. [PMID: 30920352 DOI: 10.1080/02701367.2019.1588935] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
UNLABELLED When athletes fail to perform at an expected level during an important moment, it is implied the athletes have experienced "choking" (sudden decline in performance) under pressure.". Researchers have reported that persistent left-hemispheric activation patterns occur when an athlete experiences considerable performance deteriorations under pressure. Researchers have also observed differences in brain activation patterns between left- and right-handed people on a variety of physical and cognitive tests, with the left-hemispheric activation more pronounced in right-handed participants. PURPOSE The purpose of this study was to investigate whether athletes' handedness may be linked to choking susceptibility (i.e., likelihood to experience performance decline under pressure). METHOD Twenty right-handed and 13 left-handed experienced Australian football players completed 15 shot attempts, in both a low-pressure and a high-pressure condition. Both groups displayed equal state anxiety increases due to the pressure manipulation, indicating similar increases in anxiety in both handedness groups. RESULTS Differences were indicated in performance between the left- and right-handed groups during the high-pressure condition, with the left-handed group maintaining, and the right-handed participants declining, performance. CONCLUSION Future electroencephalogram (EEG) research investigating this link may clarify the effect between handedness and choking.
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21
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Mohammadi H, Papadatou-Pastou M. Cerebral laterality as assessed by hand preference measures and developmental stuttering. Laterality 2019; 25:127-149. [PMID: 31144576 DOI: 10.1080/1357650x.2019.1621329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The causes of developmental stuttering, a neurodevelopmental communicative disorder, have not been elucidated to date. Neuroimaging studies suggest that atypical cerebral laterality could be one of such causal factors. Moreover, handedness, a behavioural index for cerebral laterality, has been linked to stuttering and recovery from it. However, findings are conflicting, possibly due to sample selection procedures, which typically rely on self-reported stuttering, and to the fact that handedness is typically assessed with regards to its direction rather than degree. We investigated the possible relationship between handedness and stuttering. This is the first study where children who stutter (CWS) were selected using clinical criteria as well as speech samples and where a non-Western population was studied. Findings from 83 CWS aged 3-9 years (mean = 6.43, SD = 1.84) and 90 age- and sex-matched children who do not stutter (mean = 6.45, SD = 1.71) revealed no differences in their hand preference scores as evaluated by parent-completed Edinburgh Handedness Inventory, for both direction and degree. The severity of stuttering was not found to correlate with the degree of handedness. We suggest that parents and professionals not treat left- or mixed-hand preference as a reason for concern with regards to stuttering.
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Affiliation(s)
- Hiwa Mohammadi
- Department of Neurology & Sleep Disorders Research Center, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Marietta Papadatou-Pastou
- School of Education, Faculty of Primary Education, National and Kapodistrian University of Athens, Athens, Greece
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22
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Kumar S, Saini R, Jain R. Hand preference and intolerance of uncertainty: Atypical cerebral lateralization advantages lower intolerance of uncertainty. Laterality 2019; 25:22-42. [DOI: 10.1080/1357650x.2019.1611843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Sanjay Kumar
- Department of Psychology, D.A.V. College, Muzaffarnagar, UP, India
| | - Reena Saini
- Department of Psychology, D.A.V. College, Muzaffarnagar, UP, India
| | - Ranjeeta Jain
- Department of Psychology, D.A.V. College, Muzaffarnagar, UP, India
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23
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McCann SJH. Handedness predicts Conservative-Republican preference and eliminates relations of Big Five personality to political orientation using the 48 contiguous American states as analytical units. Laterality 2018; 24:289-319. [PMID: 30080438 DOI: 10.1080/1357650x.2018.1508214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The two present nomothetic studies focused on the period from 1996 to 2012 to determine relations between handedness and political orientation using the 48 contiguous American states as analytical units. The estimated percentage of left-handers in each state operationally defined handedness. A composite measure of Conservative-Republican preference was created from CBS/New York Times/Gallup polls of state resident conservatism and the percent in each state voting Republican in each presidential election from 1996 to 2012. Study 1 showed that state levels of left-handedness correlated to an extremely high degree with Conservative-Republican preference (r = -.80). As well, with common demographic differences between states reflected in socioeconomic status, White population percent, and urban population percent controlled through multiple regression, handedness still accounted for an additional 37.2% of the variance in Conservative-Republican preference. Study 2 found that each of the Big Five personality variables correlated significantly with handedness and with Conservative-Republican preference, but in the opposite direction. Furthermore, Study 2 demonstrated quite surprisingly that all Big Five personality relations to Conservative-Republican preference were eliminated when handedness was controlled in multiple regression equations. For all regression equations, the global Moran's I test specifically developed for detecting residual spatial autocorrelation indicated no significant spatial autocorrelation.
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24
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Castañer M, Andueza J, Hileno R, Puigarnau S, Prat Q, Camerino O. Profiles of Motor Laterality in Young Athletes' Performance of Complex Movements: Merging the MOTORLAT and PATHoops Tools. Front Psychol 2018; 9:916. [PMID: 29930527 PMCID: PMC5999755 DOI: 10.3389/fpsyg.2018.00916] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/18/2018] [Indexed: 11/28/2022] Open
Abstract
Laterality is a key aspect of the analysis of basic and specific motor skills. It is relevant to sports because it involves motor laterality profiles beyond left-right preference and spatial orientation of the body. The aim of this study was to obtain the laterality profiles of young athletes, taking into account the synergies between the support and precision functions of limbs and body parts in the performance of complex motor skills. We applied two instruments: (a) MOTORLAT, a motor laterality inventory comprising 30 items of basic, specific, and combined motor skills, and (b) the Precision and Agility Tapping over Hoops (PATHoops) task, in which participants had to perform a path by stepping in each of 14 hoops arranged on the floor, allowing the observation of their feet, left-right preference and spatial orientation. A total of 96 young athletes performed the PATHoops task and the 30 MOTORLAT items, allowing us to obtain data about limb dominance and spatial orientation of the body in the performance of complex motor skills. Laterality profiles were obtained by means of a cluster analysis and a correlational analysis and a contingency analysis were applied between the motor skills and spatial orientation actions performed. The results obtained using MOTORLAT show that the combined motor skills criterion (for example, turning while jumping) differentiates athletes' uses of laterality, showing a clear tendency toward mixed laterality profiles in the performance of complex movements. In the PATHoops task, the best spatial orientation strategy was “same way” (same foot and spatial wing) followed by “opposite way” (opposite foot and spatial wing), in keeping with the research assumption that actions unfolding in a horizontal direction in front of an observer's eyes are common in a variety of sports.
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Affiliation(s)
- Marta Castañer
- National Institute of Physical Education of Catalonia (INEFC), University of Lleida, Lleida, Spain.,Lleida Institute for Biomedical Research Dr. Pifarré Foundation (IRBLLEIDA), University of Lleida, Lleida, Spain
| | - Juan Andueza
- National Institute of Physical Education of Catalonia (INEFC), University of Lleida, Lleida, Spain
| | - Raúl Hileno
- National Institute of Physical Education of Catalonia (INEFC), University of Lleida, Lleida, Spain
| | - Silvia Puigarnau
- National Institute of Physical Education of Catalonia (INEFC), University of Lleida, Lleida, Spain
| | - Queralt Prat
- National Institute of Physical Education of Catalonia (INEFC), University of Lleida, Lleida, Spain
| | - Oleguer Camerino
- National Institute of Physical Education of Catalonia (INEFC), University of Lleida, Lleida, Spain.,Lleida Institute for Biomedical Research Dr. Pifarré Foundation (IRBLLEIDA), University of Lleida, Lleida, Spain
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25
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Prichard EC. The association between inconsistent handedness and psychopathy does not extend to the domain of moral reasoning. Laterality 2018; 24:113-124. [PMID: 29848158 DOI: 10.1080/1357650x.2018.1481865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
A recent study [Shobe, E., & Desimone, K. (2016). Inconsistent handers show higher psychopathy than consistent handers. Laterality: Asymmetries of Body, Brain and Cognition, 21(2), 143-160. doi:10.1080/1357650X.2015.1089879] found an association between inconsistent handedness (the use of one's non-dominant hand for some tasks) and psychopathy. Because this provides evidence for an association between an individual difference and a trait that is perceived negatively, the present study set out to (1) attempt to replicate the finding and (2) determine whether inconsistent handedness and psychopathy predict similar patterns of moral reasoning. An Mturk sample of 344 adults took the Edinburgh Handedness Inventory, the Short Dark Triad Questionnaire, and the Moral Foundations Questionnaire. The finding of a modest association between handedness and psychopathy was replicated. However, handedness and psychopathy predicted totally different response patterns on the Moral Foundations Questionnaire, with psychopathy predicting less concern for others and fairness and inconsistent handedness predicting less respect for authority and less in group loyalty.
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Affiliation(s)
- Eric C Prichard
- a School of Social and Behavioral Sciences , The University of Arkansas at Monticello , Monticello , AR , USA
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26
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Degree of handedness: A unique individual differences factor for predicting and understanding hindsight bias. PERSONALITY AND INDIVIDUAL DIFFERENCES 2018. [DOI: 10.1016/j.paid.2017.12.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Zickert N, Geuze RH, van der Feen FE, Groothuis TG. Fitness costs and benefits associated with hand preference in humans: A large internet study in a Dutch sample. EVOL HUM BEHAV 2018. [DOI: 10.1016/j.evolhumbehav.2018.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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28
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Rogers LJ. Manual bias, behavior, and cognition in common marmosets and other primates. PROGRESS IN BRAIN RESEARCH 2018; 238:91-113. [DOI: 10.1016/bs.pbr.2018.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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29
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Goursot C, Düpjan S, Tuchscherer A, Puppe B, Leliveld LMC. Behavioural lateralization in domestic pigs (Sus scrofa)-variations between motor functions and individuals. Laterality 2017; 23:576-598. [PMID: 29191074 DOI: 10.1080/1357650x.2017.1410555] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Motor lateralization is hypothesized to depend on the complexity of the motor function, but it might at the same time reflect hemispheric dominance within an individual across motor functions. We investigated possible motor lateralization patterns in four motor functions of different complexity (snout use in a manipulative task, foot use in two-stepping tasks and tail curling) in the domestic pig, a tetrapod species relevant as farm animal but also as a model in human neuroscience. A significant majority of our sample showed individual biases for manipulation with their snout and for curling their tail. Interestingly, the tail curling was lateralized towards the right at the population level and showed stronger lateralization patterns than the snout. Using a cluster analysis with combined tail and snout laterality, we identified groups of individuals with different lateralization patterns across motor functions that potentially reflect the individuals' hemispheric dominance. To conclude, our results suggest that pigs show lateralization patterns that depend on the motor function and on the individual. Such individual lateralization patterns might have broader implications for animal personality and welfare. Our study lays the methodological groundwork for future research on laterality in pigs.
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Affiliation(s)
- Charlotte Goursot
- a Institute of Behavioural Physiology , Leibniz Institute for Farm Animal Biology (FBN) , Dummerstorf , Germany
| | - Sandra Düpjan
- a Institute of Behavioural Physiology , Leibniz Institute for Farm Animal Biology (FBN) , Dummerstorf , Germany
| | - Armin Tuchscherer
- b Institute of Genetics and Biometry , Leibniz Institute for Farm Animal Biology (FBN) , Dummerstorf , Germany
| | - Birger Puppe
- a Institute of Behavioural Physiology , Leibniz Institute for Farm Animal Biology (FBN) , Dummerstorf , Germany.,c Behavioural Sciences, Faculty of Agricultural and Environmental Sciences , University of Rostock , Rostock , Germany
| | - Lisette M C Leliveld
- a Institute of Behavioural Physiology , Leibniz Institute for Farm Animal Biology (FBN) , Dummerstorf , Germany
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30
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Capizzi M, Ambrosini E, Vallesi A. Individual Differences in Verbal and Spatial Stroop Tasks: Interactive Role of Handedness and Domain. Front Hum Neurosci 2017; 11:545. [PMID: 29176946 PMCID: PMC5686059 DOI: 10.3389/fnhum.2017.00545] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 10/25/2017] [Indexed: 11/13/2022] Open
Abstract
A longstanding debate in psychology concerns the relation between handedness and cognitive functioning. The present study aimed to contribute to this debate by comparing performance of right- and non-right-handers on verbal and spatial Stroop tasks. Previous studies have shown that non-right-handers have better inter-hemispheric interaction and greater access to right hemisphere processes. On this ground, we expected performance of right- and non-right-handers to differ on verbal and spatial Stroop tasks. Specifically, relative to right-handers, non-right-handers should have greater Stroop effect in the color-word Stroop task, for which inter-hemispheric interaction does not seem to be advantageous to performance. By contrast, non-right-handers should be better able to overcome interference in the spatial Stroop task. This is for their preferential access to the right hemisphere dealing with spatial material and their greater inter-hemispheric interaction with the left hemisphere hosting Stroop task processes. Our results confirmed these predictions, showing that handedness and the underlying brain asymmetries may be a useful variable to partly explain individual differences in executive functions.
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Affiliation(s)
| | | | - Antonino Vallesi
- Department of Neuroscience, University of Padova, Padova, Italy.,San Camillo Hospital IRCCS, Venice, Italy
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31
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Espírito-Santo H, Pires CF, Garcia IQ, Daniel F, Silva AGD, Fazio RL. Preliminary validation of the Portuguese Edinburgh Handedness Inventory in an adult sample. APPLIED NEUROPSYCHOLOGY-ADULT 2017; 24:275-287. [PMID: 28362169 DOI: 10.1080/23279095.2017.1290636] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The Edinburgh Handedness Inventory (EHI) is persistently the most used inventory to evaluate handedness, being neuropsychological investigation and clinical practice. Despite this, there is no information on how this instrument functions in a Portuguese population. The objective of this study was therefore to examine the sociodemographic influences on handedness and establish psychometric properties of the EHI in a Portuguese sample. The sample consisted of 342 adults (157 men and 185 women), assessed with a battery of neuropsychological tests. The mean EHI Laterality Quotient was 63.52 (SD = 38.00). A much high percentage of ambiguous-handedness compared to left-handedness was detected. An inconsistency was found between the preference for formal education activities (writing-drawing-using scissors) and the remaining EHI activities. From sociodemographic variables, only age, area, and regions of residence showed significant influence on EHI scores. The reliability and temporal reliability of EHI were adequate. Confirmatory factor analysis indicated a one-factor model (χ2/df = 2.141; TLI = 0.972; CFI = 0.979; RMSEA = 0.058). The inconsistency between formal education and nonformal activities could be an indicator of social pressure. The present data give support for the notion that handedness measured by EHI is potentially sensitive to sociodemographic and cultural influences.
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Affiliation(s)
| | | | | | - Fernanda Daniel
- a Instituto Superior Miguel Torga , Coimbra , Portugal.,b Centro de Estudos e Investigação em Saúde da Universidade de Coimbra , Coimbra , Portugal
| | - Alexandre Gomes da Silva
- b Centro de Estudos e Investigação em Saúde da Universidade de Coimbra , Coimbra , Portugal.,c Instituto Politécnico de Coimbra , Coimbra , Portugal
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32
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Smit M, Kooistra DI, van der Ham IJM, Dijkerman HC. Laterality and body ownership: Effect of handedness on experience of the rubber hand illusion. Laterality 2017; 22:703-724. [DOI: 10.1080/1357650x.2016.1273940] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Smit
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, The Netherlands
| | - D. I. Kooistra
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, The Netherlands
| | - I. J. M. van der Ham
- Department of Health, Medical, and Neuropsychology, Leiden University, Leiden, The Netherlands
| | - H. C. Dijkerman
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, The Netherlands
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33
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Schmidt SL, Carvaho ALN, Simoes EN. Effect of handedness on auditory attentional performance in ADHD students. Neuropsychiatr Dis Treat 2017; 13:2921-2924. [PMID: 29238197 PMCID: PMC5716334 DOI: 10.2147/ndt.s149454] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The relationship between handedness and attentional performance is poorly understood. Continuous performance tests (CPTs) using visual stimuli are commonly used to assess subjects suffering from attention deficit hyperactivity disorder (ADHD). However, auditory CPTs are considered more useful than visual ones to evaluate classroom attentional problems. A previous study reported that there was a significant effect of handedness on students' performance on a visual CPT. Here, we examined whether handedness would also affect CPT performance using only auditory stimuli. From an initial sample of 337 students, 11 matched pairs were selected. Repeated ANOVAs showed a significant effect of handedness on attentional performance that was exhibited even in the control group. Left-handers made more commission errors than right-handers. The results were interpreted considering that the association between ADHD and handedness reflects that consistent left-handers are less lateralized and have decreased interhemispheric connections. Auditory attentional data suggest that left-handers have problems in the impulsive/hyperactivity domain. In ADHD, clinical therapeutics and rehabilitation must take handedness into account because consistent sinistrals are more impulsive than dextrals.
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Affiliation(s)
- Sergio L Schmidt
- Department of Neurophysiology, State University of Rio de Janeiro, Rio de Janeiro.,Neurology Department, Federal University of the State of Rio de Janeiro, Rio de Janeiro
| | | | - Eunice N Simoes
- Neurology Department, Federal University of the State of Rio de Janeiro, Rio de Janeiro
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34
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Sartarelli M. Handedness, Earnings, Ability and Personality. Evidence from the Lab. PLoS One 2016; 11:e0164412. [PMID: 27788156 PMCID: PMC5082911 DOI: 10.1371/journal.pone.0164412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 09/23/2016] [Indexed: 01/09/2023] Open
Abstract
Evidence showing that on average left-handed (L), who are 10% in a population, tend to earn less than others is solely based on survey data. This paper is the first to test the relationship between handedness and earnings experimentally and also to assess whether the mechanism underlying it is predominantly cognitive or psychological. Data on 432 undergraduate students show that L do not obtain significantly different payoffs, a proxy for earnings, in a stylised labour market with multiple principals and agents. Similarly, scores in the Cognitive Reflection Test are not significantly different. Data on personality, measured using the Big Five test, show, instead, that L are significantly more agreeable and L females more extroverted. In addition, earnings significantly vary with personality only for L, increasing with extraversion and decreasing with neuroticism. Overall, our results fail to reject the null hypothesis that earnings do not differ by handedness and suggest differences in personality as a novel mechanism to rationalise L’s behaviour.
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Affiliation(s)
- Marcello Sartarelli
- Universidad de Alicante, Departamento de Fundamentos del Análisis Económico, Alicante, Spain
- * E-mail:
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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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Westmoreland P. A philosophical approach to the concept of handedness: The phenomenology of lived experience in left- and right-handers. Laterality 2016; 22:233-255. [PMID: 27026143 DOI: 10.1080/1357650x.2016.1164181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This paper provides a philosophical evaluation of the concept of handedness prevalent but largely unspoken in the scientific literature. This literature defines handedness as the preference or ability to use one hand rather than the other across a range of common activities. Using the philosophical discipline of phenomenology, I articulate and critique this conceptualization of handedness. Phenomenology shows defining a concept of handedness by focusing on hand use leads to a right hand biased concept. I argue further that a phenomenological model based in spatial orientation rather than hand use provides a more inclusive concept of handedness.
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Affiliation(s)
- Peter Westmoreland
- a Philosophy Department , The University of Florida , Gainesville , FL , USA
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Half Oaks, Half Willows: Degree, Not Direction, of Handedness Underlies Both Stable Prevalence in the Human Population and Species-Beneficial Variations in Cognitive Flexibility. EVOLUTIONARY PSYCHOLOGICAL SCIENCE 2016. [DOI: 10.1007/s40806-016-0047-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Prichard EC, Christman SD. Need for cognition moderates paranormal beliefs and magical ideation in inconsistent-handers. Laterality 2016; 21:228-42. [DOI: 10.1080/1357650x.2015.1125914] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Life on the Left. Laterality 2016. [DOI: 10.1016/b978-0-12-801239-0.00010-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Alteration and recovery of arm usage in daily activities after rotator cuff surgery. J Shoulder Elbow Surg 2015; 24:1346-52. [PMID: 25825140 DOI: 10.1016/j.jse.2015.01.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 01/30/2015] [Accepted: 01/31/2015] [Indexed: 02/01/2023]
Abstract
BACKGROUND The objective measurement of dominant/nondominant arm use proportion in daily life may provide relevant information on healthy and pathologic arm behavior. This prospective case-control study explored the potential of such measurements as indicators of upper limb functional recovery after rotator cuff surgery. METHODS Data on dominant/nondominant arm usage were acquired with body-worn sensors for 7 hours. The postsurgical arm usage of 21 patients was collected at 3, 6, and 12 months after rotator cuff surgery in the sitting, walking, and standing postures and compared with a reference established with 41 healthy subjects. The results were calculated for the dominant and nondominant surgical side subgroups at all stages. The correlations with clinical scores were calculated. RESULTS Healthy right-handed and left-handed dominant arm usage was 60.2% (±6.3%) and 53.4% (±6.6%), respectively. Differences in use of the dominant side were significant between the right- and left-handed subgroups for sitting (P = .014) and standing (P = .009) but not for walking (P = .328). The patient group showed a significant underuse of 10.7% (±8.9%) at 3 months after surgery (P < .001). The patients recovered normal arm usage within 12 months, regardless of surgical side. The arm underuse measurement was weakly related to function and pain scores. CONCLUSION This study provided new information on arm recovery after rotator cuff surgery using an innovative measurement method. It highlighted that objective arm underuse measurement is a valuable indicator of upper limb postsurgical outcome that captures a complementary feature to clinical scores.
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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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Beaton AA, Kaack IH, Corr PJ. Handedness and behavioural inhibition system/behavioural activation system (BIS/BAS) scores: A replication and extension of Wright, Hardie, and Wilson (2009). Laterality 2015; 20:585-603. [DOI: 10.1080/1357650x.2015.1016530] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Wright L, Hardie SM. Left-handers look before they leap: handedness influences reactivity to novel Tower of Hanoi tasks. Front Psychol 2015; 6:58. [PMID: 25691878 PMCID: PMC4315011 DOI: 10.3389/fpsyg.2015.00058] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/12/2015] [Indexed: 11/17/2022] Open
Abstract
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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Affiliation(s)
- Lynn Wright
- Evolutionary and Biological Approaches to Behaviour Research Group, Division of Psychology, Abertay UniversityDundee, UK
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Ocklenburg S, Hirnstein M, Beste C, Güntürkün O. Lateralization and cognitive systems. Front Psychol 2014; 5:1143. [PMID: 25339936 PMCID: PMC4189433 DOI: 10.3389/fpsyg.2014.01143] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 09/19/2014] [Indexed: 12/13/2022] Open
Affiliation(s)
- Sebastian Ocklenburg
- Biopsychology, Institute of Cognitive Neuroscience, Ruhr-University Bochum Bochum, Germany
| | - Marco Hirnstein
- Bergen fMRI Group, Department of Biological and Medical Psychology, University of Bergen Bergen, Norway
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the Technische Universität Dresden Dresden, Germany
| | - Onur Güntürkün
- Biopsychology, Institute of Cognitive Neuroscience, Ruhr-University Bochum Bochum, Germany
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