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Wan S, Sun Y, Ye Q, Gu Y, Sommer W, Cao X. Processing objects of perceptual expertise: Differential interhemispheric transmission efficiency but similar transmission direction advantages. Neuropsychologia 2023; 188:108568. [PMID: 37150438 DOI: 10.1016/j.neuropsychologia.2023.108568] [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: 08/05/2022] [Revised: 12/31/2022] [Accepted: 04/20/2023] [Indexed: 05/09/2023]
Abstract
Faces and Chinese characters are both objects of perceptual expertise. In this study, we investigated the characteristics of interhemispheric transmission times (IHTTs) in both transmission direction and transmission efficiency during the processing of objects of perceptual expertise. A total of 112 participants engaged in a divided visual field paradigm for faces, Chinese characters, and houses in both upright and inverted orientations. The N170 amplitudes elicited by the objects of perceptual expertise (faces and Chinese characters) involved in this study were larger than those elicited by the non-perceptual expertise objects (houses). We used the latencies of the N170 component of the event-related potential (ERP) recorded in the left and right hemispheres to calculate the IHTTs. For all objects, the N170-related IHTTs from the right to the left hemispheres were shorter than those in the opposite direction. Essentially, the N170-related IHTTs for faces were shorter, that is, more efficient than those for Chinese characters and houses. This result indicates that the IHTTs during perceptual expertise and non-perceptual expertise object processing share a common transmission direction advantage, but transmission efficiency is face-specific.
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Affiliation(s)
- Simin Wan
- Department of Psychology, Zhejiang Normal University, Jinhua, China
| | - Yini Sun
- Department of Psychology, Zhejiang Normal University, Jinhua, China
| | - Qing Ye
- Department of Psychology, Zhejiang Normal University, Jinhua, China
| | - Yu Gu
- Department of Psychology, Zhejiang Normal University, Jinhua, China
| | - Werner Sommer
- Department of Psychology, Zhejiang Normal University, Jinhua, China; Institut für Psychologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Xiaohua Cao
- Department of Psychology, Zhejiang Normal University, Jinhua, China; Key Laboratory of Intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua, China.
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Interhemispheric transfer time differs between fast and slow healthy adult readers. Neuropsychologia 2022; 169:108205. [DOI: 10.1016/j.neuropsychologia.2022.108205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 02/02/2022] [Accepted: 03/03/2022] [Indexed: 11/20/2022]
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Abstract
Comparative studies on brain asymmetry date back to the 19th century but then largely disappeared due to the assumption that lateralization is uniquely human. Since the reemergence of this field in the 1970s, we learned that left-right differences of brain and behavior exist throughout the animal kingdom and pay off in terms of sensory, cognitive, and motor efficiency. Ontogenetically, lateralization starts in many species with asymmetrical expression patterns of genes within the Nodal cascade that set up the scene for later complex interactions of genetic, environmental, and epigenetic factors. These take effect during different time points of ontogeny and create asymmetries of neural networks in diverse species. As a result, depending on task demands, left- or right-hemispheric loops of feedforward or feedback projections are then activated and can temporarily dominate a neural process. In addition, asymmetries of commissural transfer can shape lateralized processes in each hemisphere. It is still unclear if interhemispheric interactions depend on an inhibition/excitation dichotomy or instead adjust the contralateral temporal neural structure to delay the other hemisphere or synchronize with it during joint action. As outlined in our review, novel animal models and approaches could be established in the last decades, and they already produced a substantial increase of knowledge. Since there is practically no realm of human perception, cognition, emotion, or action that is not affected by our lateralized neural organization, insights from these comparative studies are crucial to understand the functions and pathologies of our asymmetric brain.
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Affiliation(s)
- Onur Güntürkün
- Department of Biopsychology, Institute of Cognitive Neuroscience, Ruhr University Bochum, Bochum, Germany
| | - Felix Ströckens
- Department of Biopsychology, Institute of Cognitive Neuroscience, Ruhr University Bochum, Bochum, Germany
| | - Sebastian Ocklenburg
- Department of Biopsychology, Institute of Cognitive Neuroscience, Ruhr University Bochum, Bochum, Germany
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Makki MI, Hagmann C. Regional differences in interhemispheric structural fibers in healthy, term infants. J Neurosci Res 2016; 95:876-884. [DOI: 10.1002/jnr.23834] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 06/03/2016] [Accepted: 06/21/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Malek I. Makki
- MRI Research; University Children Hospital Zurich; Zurich Switzerland
| | - Cornelia Hagmann
- Department of Neonatology; University Hospital Zurich; Zurich Switzerland
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Hagmann C, Singer J, Latal B, Knirsch W, Makki M. Regional Microstructural and Volumetric Magnetic Resonance Imaging (MRI) Abnormalities in the Corpus Callosum of Neonates With Congenital Heart Defect Undergoing Cardiac Surgery. J Child Neurol 2016; 31:300-8. [PMID: 26129977 DOI: 10.1177/0883073815591214] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 05/11/2015] [Indexed: 11/17/2022]
Abstract
The purpose of the study is to investigate the structural development of the corpus callosum in term neonates with congenital heart defect before and after surgery using diffusion tensor imaging and 3-dimensional T1-weighted magnetic resonance imaging (MRI). We compared parallel and radial diffusions, apparent diffusion coefficient (ADC), fractional anisotropy, and volume of 5 substructures of the corpus callosum: genu, rostral body, body, isthmus, and splenium. Compared to healthy controls, we found a significantly lower volume of the splenium and total corpus callosum and a higher radial diffusion and lower fractional anisotropy in the splenium of patients presurgery; a lower volume in all substructures in the postsurgery group; higher radial diffusion in the rostral body, body, and splenium; and a higher apparent diffusion coefficient in the splenium of postsurgery patients. Similar fractional anisotropy changes in congenital heart defect patients were reported in preterm infants. Our findings in apparent diffusion coefficient in the splenium of these patients (pre and postsurgery) are comparable to findings in preterm neonates with psychomotor delay. Delayed maturation of the isthmus was also reported in preterm infants.
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Affiliation(s)
- Cornelia Hagmann
- Department of Neonatology, University Hospital, Zurich, Switzerland
| | - Jitka Singer
- Department of Neonatology, University Hospital, Zurich, Switzerland
| | - Beatrice Latal
- Child Development Center, University Children's Hospital, Zurich, Switzerland
| | - Walter Knirsch
- Pediatric Cardiology, University Children's Hospital, Zurich, Switzerland
| | - Malek Makki
- MRI Research Centre, University Children's Hospital, Zurich, Switzerland
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Piponnier JC, Forget R, Gagnon I, McKerral M, Giguère JF, Faubert J. First- and Second-Order Stimuli Reaction Time Measures Are Highly Sensitive to Mild Traumatic Brain Injuries. J Neurotrauma 2015; 33:242-53. [PMID: 25950948 DOI: 10.1089/neu.2014.3832] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Mild traumatic brain injury (mTBI) has subtle effects on several brain functions that can be difficult to assess and follow up. We investigated the impact of mTBI on the perception of sine-wave gratings defined by first- and second-order characteristics. Fifteen adults diagnosed with mTBI were assessed at 15 days, 3 months, and 12 months postinjury. Fifteen matched controls followed the same testing schedule. Reaction times (RTs) for flicker detection and motion direction discrimination were measured. Stimulus contrast of first- and second-order patterns was equated to control for visibility, and correct-response RT means, standard deviations (SDs), medians, and interquartile ranges (IQRs) were calculated. The level of symptoms was also evaluated to compare it to RT data. In general in mTBI, RTs were longer, and SDs as well as IQRs larger, than those of controls. In addition, mTBI participants' RTs to first-order stimuli were shorter than those to second-order stimuli, and SDs as well as IQRs larger for first- than for second-order stimuli in the motion condition. All these observations were made over the three sessions. The level of symptoms observed in mTBI was higher than that of control participants, and this difference did also persist up to 1 year after the brain injury, despite an improvement. The combination of RT measures with particular stimulus properties is a highly sensitive method for measuring mTBI-induced visuomotor anomalies and provides a fine probe of the underlying mechanisms when the brain is exposed to mild trauma.
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Affiliation(s)
- Jean-Claude Piponnier
- 1 Visual Psychophysics and Perception Laboratory, École d'Optométrie, Université de Montréal , Montréal, QC, Canada
| | - Robert Forget
- 2 École de réadaptation, Université de Montréal , and Centre de recherche interdisciplinaire en réadaptation du Montréal métropolitain, Montréal, QC, Canada
| | - Isabelle Gagnon
- 3 Montreal Children's Hospital, McGill University Health Center, and School of Physical and Occupational Therapy, McGill University , Montreal, Montréal, QC, Canada
| | - Michelle McKerral
- 4 Centre de recherche interdisciplinaire en réadaptation-Centre de réadaptation Lucie-Bruneau, and Département de psychologie, Université de Montréal , Montréal, QC, Canada
| | - Jean-François Giguère
- 5 Department of Surgery, Sacré-Coeur Hospital affiliated with Université de Montréal , Montréal, QC, Canada
| | - Jocelyn Faubert
- 1 Visual Psychophysics and Perception Laboratory, École d'Optométrie, Université de Montréal , Montréal, QC, Canada
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Effects of eye dominance (left vs. right) and cannabis use on intermanual coordination and negative symptoms in schizophrenia patients. Eur Arch Psychiatry Clin Neurosci 2014; 264:683-95. [PMID: 24792218 DOI: 10.1007/s00406-014-0503-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 04/13/2014] [Indexed: 10/25/2022]
Abstract
Based on the previous findings, it has been assumed that in schizophrenia patients, eye dominance and cannabis use will affect negative symptoms and intermanual coordination (IMC), an index of interhemispheric communication. But eye dominance, specifically the clinical findings for it, has been neglected in schizophrenia research. We therefore investigated its effects in 52 right-handed (36 right-eyed and 16 left-eyed) and 51 left-handed (35 left-eyed and 16 right-eyed) schizophrenia in-patients without and with drug use. Eye dominance affected IMC in all schizophrenia patients. When comparing right- and left-handers, we found that this result was only significant in the right-handed patients and in the smaller subgroup without drug use. In the right-handers, left eye dominance-like left-handedness-was associated with higher values in IMC and less pronounced manifestation of negative symptoms, right eye dominance was not. Thus, left-eyed right-handers may be more closely related to left-handers than to right-handers. In accordance with the results from the literature, we suggest that these findings are due to better interhemispheric connections and less impairment of white matter structures, especially in right-hemispheric regions. Moreover, cannabis use was related to higher scores in IMC and less pronounced negative symptoms, but only in the right-eyed and not in the left-eyed right-handers or in the left-handers. Hence, differences in eye dominance and handedness may be partially responsible for different results in interhemispheric connections among cannabis users. In conclusion, both eye dominance and use of cannabis should be taken into account when assessing clinical symptoms in schizophrenia patients.
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Prete G, D'Ascenzo S, Laeng B, Fabri M, Foschi N, Tommasi L. Conscious and unconscious processing of facial expressions: evidence from two split-brain patients. J Neuropsychol 2013; 9:45-63. [PMID: 24325712 DOI: 10.1111/jnp.12034] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/15/2013] [Indexed: 02/06/2023]
Abstract
We investigated how the brain's hemispheres process explicit and implicit facial expressions in two 'split-brain' patients (one with a complete and one with a partial anterior resection). Photographs of faces expressing positive, negative or neutral emotions were shown either centrally or bilaterally. The task consisted in judging the friendliness of each person in the photographs. Half of the photograph stimuli were 'hybrid faces', that is an amalgamation of filtered images which contained emotional information only in the low range of spatial frequency, blended to a neutral expression of the same individual in the rest of the spatial frequencies. The other half of the images contained unfiltered faces. With the hybrid faces the patients and a matched control group were more influenced in their social judgements by the emotional expression of the face shown in the left visual field (LVF). When the expressions were shown explicitly, that is without filtering, the control group and the partially callosotomized patient based their judgement on the face shown in the LVF, whereas the complete split-brain patient based his ratings mainly on the face presented in the right visual field. We conclude that the processing of implicit emotions does not require the integrity of callosal fibres and can take place within subcortical routes lateralized in the right hemisphere.
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Affiliation(s)
- Giulia Prete
- Department of Neuroscience and Imaging, 'G. d'Annunzio' University of Chieti-Pescara, Italy
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Proverbio AM, Mazzara R, Riva F, Manfredi M. Sex differences in callosal transfer and hemispheric specialization for face coding. Neuropsychologia 2012; 50:2325-32. [PMID: 22727879 DOI: 10.1016/j.neuropsychologia.2012.05.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Revised: 05/24/2012] [Accepted: 05/31/2012] [Indexed: 12/22/2022]
Abstract
Previous studies have shown a reduced lateralization of brain functions in women compared with men. Similarly, some studies have shown that the inter-hemispheric transfer (IHTT) of information is asymmetric in men, with faster latencies in the RH→LH compared with the LH→RH direction, and symmetric in women. The aim of the present study was to investigate IHTT and hemispheric lateralization during face processing in the two sexes. Event-related potentials (ERPs) were recorded in strictly right-handed people (16 men and 17 women) engaged in a face-sex categorization task. Occipital P1 and occipito/temporal N170 were left lateralized in women and bilateral in men. Overall the data suggest a certain involvement of the LH in face feature analysis (possibly related to sex-coding) in both sexes. N170 to contralateral stimuli was larger over the RH in men and the LH in women. IHTT was approximately 4 ms at the P1 level and approximately 8 ms at the N170 level. It was asymmetric in men, with faster latencies in the left visual field (LVF)/RH→LH (170 ms) direction than in the right-visual field (RVF)/LH→RH (185 ms) direction and symmetric in women. These findings suggest that the asymmetry in callosal transfer times might be due to faster transmission times of face-related information via fibers departing from the more efficient to the less efficient hemisphere. Overall, our findings also support the notion that the transfer time of visual inputs might be more rapid and symmetric in women than in men.
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Affiliation(s)
- Alice Mado Proverbio
- Department of Psychology, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo 1, 20126 Milan, Italy.
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Jo HM, Cho HK, Jang SH, Yeo SS, Lee E, Kim HS, Son SM. A comparison of microstructural maturational changes of the corpus callosum in preterm and full-term children: a diffusion tensor imaging study. Neuroradiology 2012; 54:997-1005. [PMID: 22562691 DOI: 10.1007/s00234-012-1042-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 04/19/2012] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Preterm children with thinning of the corpus callosum (CC) frequently achieve poor neurodevelopmental outcomes despite the absence of a definite brain lesion. Here, the authors compared the microstructural characteristics of the CC in preterm and full-term children using diffusion tensor imaging (DTI). METHODS Twenty-two preterm children with no definite focal lesion but with thinning of the CC by conventional magnetic resonance imaging and 23 age-matched full-term children were investigated by DTI. CCs were subdivided into genu, rostral body, body, isthmus, and splenium, and voxel counts (VC), fractional anisotropies (FA), and apparent diffusion coefficients (ADC) were measured in each subdivision. Eleven preterm and 11 age-matched full-term subjects underwent follow-up scanning and interval changes in these parameters for each subdivision were compared. RESULTS VC and FA were significantly lower in the preterm group than in the full-term group, particularly in the isthmus. Furthermore, incremental changes in VC and FA were significantly smaller in the preterm group. Differences in maturation between the two groups were more pronounced with age in all subdivisions except the splenium. At all ages, noticeable FA differences between the two groups were observed in the isthmus. For white matter tracts, the preterm group displayed lower FA and fiber number, higher ADC values than the term group. CONCLUSIONS The present study shows that thinning of the CC is correlated with lower FA value and that it is more pronounced in preterm children. In addition, the isthmus was found to be the most vulnerable subdivision in preterm children.
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Affiliation(s)
- Hae Min Jo
- Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, University 317-1, Daemyungdong, Namku, Taegu 705-717, Republic of Korea
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Alberto Marzi C. Asymmetry of interhemispheric communication. WILEY INTERDISCIPLINARY REVIEWS. COGNITIVE SCIENCE 2010; 1:433-438. [DOI: 10.1002/wcs.53] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Carlo Alberto Marzi
- Department of Neurological and Visual Sciences, Physiology Section, University of Verona, 8 Strada Le Grazie, 37134, Verona, Italy
- National Institute of Neuroscience, Verona Section, Italy
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Li Y, Bin G, Hong B, Gao X. A coded VEP method to measure interhemispheric transfer time (IHTT). Neurosci Lett 2010; 472:123-7. [PMID: 20138118 DOI: 10.1016/j.neulet.2010.01.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Revised: 01/04/2010] [Accepted: 01/28/2010] [Indexed: 11/29/2022]
Abstract
Interhemispheric transfer time (IHTT) is an important parameter for research on the information conduction time across the corpus callosum between the two hemispheres. There are several traditional methods used to estimate the IHTT, including the reaction time (RT) method, the evoked potential (EP) method and the measure based on the transcranial magnetic stimulation (TMS). The present study proposes a novel coded VEP method to estimate the IHTT based on the specific properties of the m-sequence. These properties include good signal-to-noise ratio (SNR) and high noise tolerance. Additionally, calculation of the circular cross-correlation function is sensitive to the phase difference. The method presented in this paper estimates the IHTT using the m-sequence to encode the visual stimulus and also compares the results with the traditional flash VEP method. Furthermore, with the phase difference of the two responses calculated using the circular cross-correlation technique, the coded VEP method could obtain IHTT results, which does not require the selection of the utilized component.
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Affiliation(s)
- Yun Li
- Biomedical Engineering Department, Tsinghua University, 100084 Beijing, People's Republic of China
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