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Ibrahim S, Mangoud O. The differences between cerebral dominance patterns in the speed and accuracy of information processing among university students. EUROPEAN REVIEW OF APPLIED PSYCHOLOGY 2023. [DOI: 10.1016/j.erap.2022.100835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Reciprocal facilitation between mental and visuomotor rotations. Sci Rep 2023; 13:825. [PMID: 36646722 PMCID: PMC9842739 DOI: 10.1038/s41598-022-26397-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 12/14/2022] [Indexed: 01/18/2023] Open
Abstract
Humans exhibit remarkably complex cognitive abilities and adaptive behavior in daily life. Cognitive operation in the "mental workspace," such as mentally rotating a piece of luggage to fit into fixed trunk space, helps us maintain and manipulate information on a moment-to-moment basis. Skill acquisition in the "sensorimotor workspace," such as learning a new mapping between the magnitude of new vehicle movement and wheel turn, allows us to adjust our behavior to changing environmental or internal demands to maintain appropriate motor performance. While this cognitive and sensorimotor synergy is at the root of adaptive behavior in the real world, their interplay has been understudied due to a divide-and-conquer approach. We evaluated whether a separate domain-specific or common domain-general operation drives mental and sensorimotor rotational transformations. We observed that participants improved the efficiency of mental rotation speed after the visuomotor rotation training, and their learning rate for visuomotor adaptation also improved after their mental rotation training. Such bidirectional transfer between two widely different tasks highlights the remarkable reciprocal plasticity and demonstrates a common transformation mechanism between two intertwined workspaces. Our findings urge the necessity of an explicitly integrated approach to enhance our understanding of the dynamic interdependence between cognitive and sensorimotor mechanisms.
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Hao X, Chen Z, Huang T, Song Y, Kong X, Liu J. Dissociation of categorical and coordinate spatial relations on dynamic network organization states. Front Hum Neurosci 2022; 16:972375. [DOI: 10.3389/fnhum.2022.972375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
Abstract
Humans can flexibly represent both categorical and coordinate spatial relations. Previous research has mainly focused on hemisphere lateralization in representing these two types of spatial relations, but little is known about how distinct network organization states support representations of the two. Here we used dynamic resting-state functional connectivity (FC) to explore this question. To do this, we separated a meta-identified navigation network into a ventral and two other subnetworks. We revealed a Weak State and a Strong State within the ventral subnetwork and a Negative State and a Positive State between the ventral and other subnetworks. Further, we found the Weak State (i.e., weak but positive FC) within the ventral subnetwork was related to the ability of categorical relation recognition, suggesting that the representation of categorical spatial relations was related to weak integration among focal regions in the navigation network. In contrast, the Negative State (i.e., negative FC) between the ventral and other subnetworks was associated with the ability of coordinate relation processing, suggesting that the representation of coordinate spatial relations may require competitive interactions among widely distributed regions. In sum, our study provides the first empirical evidence revealing different focal and distributed organizations of the navigation network in representing different types of spatial information.
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Kim HJ, Lee JH, Cheong EN, Chung SE, Jo S, Shim WH, Hong YJ. Elucidating the Risk Factors for Progression from Amyloid-Negative Amnestic Mild Cognitive Impairment to Dementia. Curr Alzheimer Res 2021; 17:893-903. [PMID: 33256581 DOI: 10.2174/1567205017666201130094259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 10/07/2020] [Accepted: 11/24/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Amyloid PET allows for the assessment of amyloid β status in the brain, distinguishing true Alzheimer's disease from Alzheimer's disease-mimicking conditions. Around 15-20% of patients with clinically probable Alzheimer's disease have been found to have no significant Alzheimer's pathology on amyloid PET. However, a limited number of studies had been conducted on this subpopulation in terms of clinical progression. OBJECTIVE We investigated the risk factors that could affect the progression to dementia in patients with amyloid-negative amnestic mild cognitive impairment (MCI). METHODS This study was a single-institutional, retrospective cohort study of patients over the age of 50 with amyloid-negative amnestic MCI who visited the memory clinic of Asan Medical Center with a follow-up period of more than 36 months. All participants underwent brain magnetic resonance imaging (MRI), detailed neuropsychological testing, and fluorine-18[F18]-florbetaben amyloid PET. RESULTS During the follow-up period, 39 of 107 patients progressed to dementia from amnestic MCI. In comparison with the stationary group, the progressed group had a more severe impairment in verbal and visual episodic memory function and hippocampal atrophy, which showed an Alzheimer's diseaselike pattern despite the lack of evidence for significant Alzheimer's disease pathology. Voxel-based morphometric MRI analysis revealed that the progressed group had a reduced gray matter volume in the bilateral cerebellar cortices, right temporal cortex, and bilateral insular cortices. CONCLUSION Considering the lack of evidence of amyloid pathology, clinical progression of these subpopulation may be caused by other neuropathologies such as TDP-43, abnormal tau or alpha synuclein that lead to neurodegeneration independent of amyloid-driven pathway. Further prospective studies incorporating biomarkers of Alzheimer's disease-mimicking dementia are warranted.
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Affiliation(s)
- Hyung-Ji Kim
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jae-Hong Lee
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - E-Nae Cheong
- Health Innovation Big Data Center, Asan Institute for Life Sciences, Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Sung-Eun Chung
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Sungyang Jo
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Woo-Hyun Shim
- Health Innovation Big Data Center, Asan Institute for Life Sciences, Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Yun J Hong
- Department of Neurology, The Catholic University of Korea, Uijeongbu St. Mary's Hospital, Uijeongbu, Korea
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Lopez A, Caffò AO, Bosco A. The impact of age and familiarity with the environment on categorical and coordinate spatial relation representations. Scand J Psychol 2021; 62:125-133. [PMID: 33404117 DOI: 10.1111/sjop.12703] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/21/2020] [Accepted: 11/10/2020] [Indexed: 12/18/2022]
Abstract
Retrieving spatial information is a crucial everyday ability that is affected by age-related changes. Previous research has shown that this change is mediated by familiarity with an environment. The present research uses a series of landmark location tasks to extend and deepen our understanding of the role of aging in spatial mental representations of more or less familiar environments, also disentangling the contribution of coordinate and categorical spatial relations. The study tested the following hypotheses: (1) younger adults only have an advantage over the elderly in less familiar environments; (2) the advantage for categorical over coordinate spatial relations is mainly found for less familiar environments; and finally; (3) interactions between age, familiarity, and spatial relations might reveal that the effects of age and familiarity take different trajectories for coordinate and categorical spatial relations. Results confirmed that: (1) young people outperform the elderly only in less familiar environments; (2) there is a reduction in the difference between coordinate and categorical accuracy with increasing familiarity with the environment; while (3) the interaction between age and level of familiarity did not significantly differentiate coordinate from categorical spatial relations. In conclusion, the present study provides new evidence for the role of familiarity with geographical areas and its impact on the representation of categorical and coordinate relations, with practical implications for the assessment of topographical disorientation in aging.
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Affiliation(s)
- Antonella Lopez
- Department of Educational Sciences, Psychology, Communication, University of Study Bari, Via Crisanzio 42, Bari, 70122, Italy
| | - Alessandro O Caffò
- Department of Educational Sciences, Psychology, Communication, University of Study Bari, Via Crisanzio 42, Bari, 70122, Italy
| | - Andrea Bosco
- Department of Educational Sciences, Psychology, Communication, University of Study Bari, Via Crisanzio 42, Bari, 70122, Italy
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Lopez A, Caffò AO, Postma A, Bosco A. How to separate coordinate and categorical spatial relation components in integrated spatial representations: A new methodology for analysing sketch maps. Scand J Psychol 2020; 61:607-615. [DOI: 10.1111/sjop.12633] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 02/10/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Antonella Lopez
- Department of Educational Sciences, Psychology, Communication University of Study Bari Bari Italy
| | - Alessandro O. Caffò
- Department of Educational Sciences, Psychology, Communication University of Study Bari Bari Italy
| | - Albert Postma
- Experimental Psychology Helmholtz Institute Utrecht University Utrecht The Netherlands
| | - Andrea Bosco
- Department of Educational Sciences, Psychology, Communication University of Study Bari Bari Italy
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Andersson P, Ragni F, Lingnau A. Visual imagery during real-time fMRI neurofeedback from occipital and superior parietal cortex. Neuroimage 2019; 200:332-343. [DOI: 10.1016/j.neuroimage.2019.06.057] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 06/11/2019] [Accepted: 06/24/2019] [Indexed: 01/15/2023] Open
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Cona G, Scarpazza C. Where is the "where" in the brain? A meta-analysis of neuroimaging studies on spatial cognition. Hum Brain Mapp 2019; 40:1867-1886. [PMID: 30600568 PMCID: PMC6865398 DOI: 10.1002/hbm.24496] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 11/06/2018] [Accepted: 11/29/2018] [Indexed: 01/12/2023] Open
Abstract
Spatial representations are processed in the service of several different cognitive functions. The present study capitalizes on the Activation Likelihood Estimation (ALE) method of meta-analysis to identify: (a) the shared neural activations among spatial functions to reveal the "core" network of spatial processing; (b) the specific neural activations associated with each of these functions. Following PRISMA guidelines, a total of 133 fMRI and PET studies were included in the meta-analysis. The overall analysis showed that the core network of spatial processing comprises regions that are symmetrically distributed on both hemispheres and that include dorsal frontoparietal regions, presupplementary motor area, anterior insula, and frontal operculum. The specific analyses revealed the brain regions that are selectively recruited for each spatial function, such as the right temporoparietal junction for shift of spatial attention, the right parahippocampal gyrus, and the retrosplenial cortex for navigation and spatial long-term memory. The findings are integrated within a systematic review of the neuroimaging literature and a new neurocognitive model of spatial cognition is proposed.
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Affiliation(s)
- Giorgia Cona
- Department of General PsychologyUniversity of PaduaPaduaItaly
- Padova Neuroscience CenterUniversity of PaduaPaduaItaly
| | - Cristina Scarpazza
- Department of General PsychologyUniversity of PaduaPaduaItaly
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & NeuroscienceKing's College Health Partners, King's College LondonLondonUnited Kingdom
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Propper RE, Wolfarth A, Carlei C, Brunye TT, Christman SD. Superior categorical and coordinate spatial task performance in inconsistent-handers relative to consistent-right-handers. Laterality 2018; 24:274-288. [PMID: 30040010 DOI: 10.1080/1357650x.2018.1503287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Categorical versus coordinate spatial tasks rely differentially on the left versus right hemisphere. Given the neuroanatomical and neurophysiological differences between inconsistent- versus consistent-right-handers (ICH versus CRH, respectively), such that the former demonstrates increased access to right hemisphere processes relative to the latter, it was hypothesized that ICH would outperform CRH on a test of coordinate spatial knowledge. Previous work demonstrating reliance on the right hemisphere for both categorical and coordinate information in non-right-handers using lateralized stimuli of brief duration suggested ICH might also outperform CRH on a categorical task as well. Participants navigated a virtual environment, landmark-to-landmark, within a 3-dimensional first-person point of view with high ecological validity, and then were tested on either their categorical or coordinate spatial knowledge. ICH were superior relative to the CRH on both types of spatial knowledge. Additionally, ICH navigated the environment during learning more quickly, and reported being more confident in their knowledge of the location of landmarks within the environment, compared with CRH. Results are discussed in terms of potential handedness differences in spatial ability generally.
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Affiliation(s)
- Ruth E Propper
- a Psychology Department , Montclair State University , Montclair , NJ , USA
| | - Andrew Wolfarth
- a Psychology Department , Montclair State University , Montclair , NJ , USA
| | - Christophe Carlei
- b Psychology Department , University of Geneva , Geneva , Switzerland
| | - Tad T Brunye
- c Department of Psychology , Tufts University , Medford , MA , USA.,d Cognitive Science Team, U.S. Army Natick Soldier Research, Development, and Engineering Center , Natick , MA , USA
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Functional neural correlates of figure copy and recall task performances in cognitively impaired individuals: an 18F-FDG-PET study. Neuroreport 2016; 26:1077-82. [PMID: 26509549 DOI: 10.1097/wnr.0000000000000476] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Figure copy and recall tasks from the Benton Visual Retention Test (BVRT) and the Consortium to Establish a Registry of Alzheimer's Disease (CERAD) neuropsychological battery are used widely to assess visuospatial function in cognitively impaired (CI) individuals. We aimed to identify functional neural correlates of figure copy and recall task performances as measured by the BVRT and the CERAD constructional praxis (CP) and CP recall (CR) in CI individuals. Both tasks were administered to 64 CI individuals with early or prodromal stage Alzheimer's disease and 36 cognitively normal individuals. Voxel-wise correlations between test scores and regional cerebral glucose metabolism (rCMglc) measured by fluorine-18 fluorodeoxyglucose PET in CI participants were analyzed. BVRT figure copy task performance was associated with rCMglc of the bilateral posterior brain regions including the parieto-temporo-occipital regions, whereas the BVRT figure recall task performance was predominantly correlated with rCMglc of the left parietal and temporo-occipital regions. Meanwhile, CERAD CP performance was associated mainly with rCMglc of the left prefrontal and temporo-occipital areas as well as in the bilateral parietal regions, whereas CERAD CR performance was correlated with rCMglc of the right prefrontal, parietal, and temporal regions. In conclusion, the functional neural correlates of the two tasks were markedly different, suggesting that these tasks might measure different visuospatial functions. Our findings contribute toward understanding the functional neuroanatomical aspects of these tasks, which is useful for both interpreting the task results as well as for more sophisticated utilization of these tasks for probing specific neuroanatomical functions.
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Noordzij ML, Zuidhoek S, Postma A. The Influence of Visual Experience on Visual and Spatial Imagery. Perception 2016; 36:101-12. [PMID: 17357708 DOI: 10.1068/p5390] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Differences are reported between blind and sighted participants on a visual-imagery and a spatial-imagery task, but not on an auditory-imagery task. For the visual-imagery task, participants had to compare object forms on the basis of a (verbally presented) object name. In the spatial-imagery task, they had to compare angular differences on the basis of the position of clock hands on two clock faces, again only on the basis of verbally presented clock times. Interestingly, there was a difference between early-blind and late-blind participants on the visual-imagery and the spatial-imagery tasks: late-blind participants made more errors than sighted people on the visual-imagery task, while early-blind participants made more errors than sighted people on the spatial-imagery task. This difference suggests that, for visual (form) imagery, people use the channel currently available (haptic for the blind; visual for the sighted). For the spatial-imagery task in this study reliance on haptic processing did not seem to suffice, and people benefited from visual experience and ability. However, the difference on the spatial-imagery task between early-blind and sighted people in this study might also be caused by differences in experience with the analogue clock faces that formed the basis for the spatial judgments.
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Affiliation(s)
- Matthijs L Noordzij
- Psychological Laboratory, Helmholtz Institute, Utrecht University, Heidelberglaan 2, NL 3584 CS Utrecht, The Netherlands.
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Han J, Cao B, Cao Y, Gao H, Li F. The role of right frontal brain regions in integration of spatial relation. Neuropsychologia 2016; 86:29-37. [DOI: 10.1016/j.neuropsychologia.2016.04.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 04/07/2016] [Accepted: 04/08/2016] [Indexed: 12/28/2022]
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13
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England HB, Fyock C, Meredith Gillis M, Hampstead BM. Transcranial direct current stimulation modulates spatial memory in cognitively intact adults. Behav Brain Res 2015; 283:191-5. [DOI: 10.1016/j.bbr.2015.01.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 01/22/2015] [Accepted: 01/26/2015] [Indexed: 10/24/2022]
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Falasca NW, D'Ascenzo S, Di Domenico A, Onofrj M, Tommasi L, Laeng B, Franciotti R. Hemispheric lateralization in top-down attention during spatial relation processing: a Granger causal model approach. Eur J Neurosci 2015; 41:914-24. [PMID: 25704649 DOI: 10.1111/ejn.12846] [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] [Received: 09/23/2014] [Revised: 12/16/2014] [Accepted: 12/31/2014] [Indexed: 11/29/2022]
Abstract
Magnetoencephalography was recorded during a matching-to-sample plus cueing paradigm, in which participants judged the occurrence of changes in either categorical (CAT) or coordinate (COO) spatial relations. Previously, parietal and frontal lobes were identified as key areas in processing spatial relations and it was shown that each hemisphere was differently involved and modulated by the scope of the attention window (e.g. a large and small cue). In this study, Granger analysis highlighted the patterns of causality among involved brain areas--the direction of information transfer ran from the frontal to the visual cortex in the right hemisphere, whereas it ran in the opposite direction in the left side. Thus, the right frontal area seems to exert top-down influence, supporting the idea that, in this task, top-down signals are selectively related to the right side. Additionally, for CAT change preceded by a small cue, the right frontal gyrus was not involved in the information transfer, indicating a selective specialization of the left hemisphere for this condition. The present findings strengthen the conclusion of the presence of a remarkable hemispheric specialization for spatial relation processing and illustrate the complex interactions between the lateralized parts of the neural network. Moreover, they illustrate how focusing attention over large or small regions of the visual field engages these lateralized networks differently, particularly in the frontal regions of each hemisphere, consistent with the theory that spatial relation judgements require a fronto-parietal network in the left hemisphere for categorical relations and on the right hemisphere for coordinate spatial processing.
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Affiliation(s)
- N W Falasca
- BIND - Behavioral Imaging and Neural Dynamics Center, University of Chieti-Pescara, Chieti, Italy
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15
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Bonino D, Ricciardi E, Bernardi G, Sani L, Gentili C, Vecchi T, Pietrini P. Spatial imagery relies on a sensory independent, though sensory sensitive, functional organization within the parietal cortex: a fMRI study of angle discrimination in sighted and congenitally blind individuals. Neuropsychologia 2015; 68:59-70. [PMID: 25575449 DOI: 10.1016/j.neuropsychologia.2015.01.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 12/31/2014] [Accepted: 01/05/2015] [Indexed: 10/24/2022]
Abstract
Although vision offers distinctive information to space representation, individuals who lack vision since birth often show perceptual and representational skills comparable to those found in sighted individuals. However, congenitally blind individuals may result in impaired spatial analysis, when engaging in 'visual' spatial features (e.g., perspective or angle representation) or complex spatial mental abilities. In the present study, we measured behavioral and brain responses using functional magnetic resonance imaging in sighted and congenitally blind individuals during spatial imagery based on a modified version of the mental clock task (e.g., angle discrimination) and a simple recognition control condition, as conveyed across distinct sensory modalities: visual (sighted individuals only), tactile and auditory. Blind individuals were significantly less accurate during the auditory task, but comparable-to-sighted during the tactile task. As expected, both groups showed common neural activations in intraparietal and superior parietal regions across visual and non-visual spatial perception and imagery conditions, indicating the more abstract, sensory independent functional organization of these cortical areas, a property that we named supramodality. At the same time, however, comparisons in brain responses and functional connectivity patterns across experimental conditions demonstrated also a functional lateralization, in a way that correlated with the distinct behavioral performance in blind and sighted individuals. Specifically, blind individuals relied more on right parietal regions, mainly in the tactile and less in the auditory spatial processing. In sighted, spatial representation across modalities relied more on left parietal regions. In conclusions, intraparietal and superior parietal regions subserve supramodal spatial representations in sighted and congenitally blind individuals. Differences in their recruitment across non-visual spatial processing in sighted and blind individuals may be related to distinctive behavioral performance and/or mental strategies adopted when they deal with the same spatial representation as conveyed through different sensory modalities.
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Affiliation(s)
- Daniela Bonino
- Laboratory of Clinical Biochemistry and Molecular Biology, Department of Surgery, Medical, Molecular Pathology, and Critical Care, University of Pisa, Pisa, Italy
| | - Emiliano Ricciardi
- Laboratory of Clinical Biochemistry and Molecular Biology, Department of Surgery, Medical, Molecular Pathology, and Critical Care, University of Pisa, Pisa, Italy; MRI Lab, Fondazione "G. Monasterio" Regione Toscana/C.N.R., Pisa, Italy.
| | - Giulio Bernardi
- Laboratory of Clinical Biochemistry and Molecular Biology, Department of Surgery, Medical, Molecular Pathology, and Critical Care, University of Pisa, Pisa, Italy
| | - Lorenzo Sani
- Laboratory of Clinical Biochemistry and Molecular Biology, Department of Surgery, Medical, Molecular Pathology, and Critical Care, University of Pisa, Pisa, Italy
| | - Claudio Gentili
- Clinical Psychology Branch, Department of Surgery, Medical, Molecular Pathology, and Critical Care, University of Pisa, Pisa, Italy
| | - Tomaso Vecchi
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy; Brain Connectivity Center, National Neurological Institute C. Mondino, Pavia, Italy
| | - Pietro Pietrini
- Laboratory of Clinical Biochemistry and Molecular Biology, Department of Surgery, Medical, Molecular Pathology, and Critical Care, University of Pisa, Pisa, Italy; Clinical Psychology Branch, Department of Surgery, Medical, Molecular Pathology, and Critical Care, University of Pisa, Pisa, Italy
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One's own country and familiar places in the mind's eye: Different topological representations for navigational and non-navigational contents. Neurosci Lett 2014; 579:52-7. [DOI: 10.1016/j.neulet.2014.07.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 06/30/2014] [Accepted: 07/09/2014] [Indexed: 11/21/2022]
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van der Ham IJ, Postma A, Laeng B. Lateralized perception: The role of attention in spatial relation processing. Neurosci Biobehav Rev 2014; 45:142-8. [DOI: 10.1016/j.neubiorev.2014.05.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 05/08/2014] [Accepted: 05/13/2014] [Indexed: 10/25/2022]
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18
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Dissecting hemisphere-specific contributions to visual spatial imagery using parametric brain mapping. Neuroimage 2014; 94:231-238. [DOI: 10.1016/j.neuroimage.2014.03.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 03/02/2014] [Accepted: 03/08/2014] [Indexed: 11/19/2022] Open
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Roth HL, Bauer RM, Crucian GP, Heilman KM. Frontal-executive constructional apraxia: when delayed recall is better than copying. Neurocase 2014; 20:283-95. [PMID: 23581561 DOI: 10.1080/13554794.2013.770879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
UNLABELLED In assessments of visuospatial function and memory, patients are often required to copy a figure and later to reproduce that figure from memory. Whereas most people perform better on a copying task than when drawing from memory, in this study we describe an unusual pattern of performance in which patients are better at drawing from memory than copying. Consecutive patients in a neurocognitive disorders clinic were given a battery of clinical cognitive tests that included copying a figure of intersecting pentagons and then drawing the figure from memory. Patterns of drawing performance at the two time points were compared to the profile of other cognitive deficits. RESULTS A subgroup of four patients with frontal dysfunction showed marked improvement in drawings at a delay compared to copying. Prior studies have indicated that most patients have declines in drawing performance at a delay. The unusual pattern of better performance at a delay compared to an initial copy occurred in patients with frontal dysfunction. These patients' visuoconstructive deficit and subsequent improvement could be related to either a failure to disengage when a model is present, to memory consolidation with increased reliance on top-down processing in the delay condition, or to relative preservation of global versus local aspects of a stimulus in memory. The addition of a task to assess drawing after a delay to a standard clinical screening battery such as the Mini-Mental Status Examination (MMSE) provides the opportunity to evaluate this phenomenon that may be indicative of frontal-executive dysfunction.
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Affiliation(s)
- Heidi L Roth
- a Department of Neurology , University of North Carolina , Chapel Hill , NC , USA
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Meadmore KL, Liversedge SP, Wenger MJ, Donnelly N. Exploring the relationship between response time, sensitivity and bias in categorical and coordinate visuospatial processes: Evidence for hemispheric specialisation. JOURNAL OF COGNITIVE PSYCHOLOGY 2014. [DOI: 10.1080/20445911.2014.903255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Holden MP, Duff-Canning SJ, Hampson E. Sex differences in the weighting of metric and categorical information in spatial location memory. PSYCHOLOGICAL RESEARCH 2014; 79:1-18. [PMID: 24435543 DOI: 10.1007/s00426-013-0539-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 12/30/2013] [Indexed: 11/30/2022]
Abstract
According to the Category Adjustment model, remembering a spatial location involves the Bayesian combination of fine-grained and categorical information about that location, with each cue weighted by its relative certainty. However, individuals may differ in terms of their certainty about each cue, resulting in estimates that rely more or less on metric or categorical representations. To date, though, very little research has examined individual differences in the relative weighting of these cues in spatial location memory. Here, we address this gap in the literature. Participants were asked to recall point locations in uniform geometric shapes and in photographs of complex, natural scenes. Error patterns were analyzed for evidence of a sex difference in the relative use of metric and categorical information. As predicted, women placed relatively more emphasis on categorical cues, while men relied more heavily on metric information. Location reproduction tasks showed a similar effect, implying that the sex difference arises early in spatial processing, possibly during encoding.
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Affiliation(s)
- Mark P Holden
- Department of Psychology, University of Western Ontario, London, ON, N6A 5C2, Canada,
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22
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Franciotti R, D’Ascenzo S, Di Domenico A, Onofrj M, Tommasi L, Laeng B. Focusing narrowly or broadly attention when judging categorical and coordinate spatial relations: a MEG study. PLoS One 2013; 8:e83434. [PMID: 24386197 PMCID: PMC3873295 DOI: 10.1371/journal.pone.0083434] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 11/05/2013] [Indexed: 12/02/2022] Open
Abstract
We measured activity in the dorsal system of the human cortex with magnetoencephalography (MEG) during a matching-to-sample plus cueing paradigm, where participants judged the occurrence of changes in either categorical or coordinate spatial relations (e.g., exchanges of left versus right positions or changes in the relative distances) between images of pairs of animals. The attention window was primed in each trial to be either small or large by using cues that immediately preceded the matching image. In this manner, we could assess the modulatory effects of the scope of attention on the activity of the dorsal system of the human cortex during spatial relations processing. The MEG measurements revealed that large spatial cues yielded greater activations and longer peak latencies in the right inferior parietal lobe for coordinate trials, whereas small cues yielded greater activations and longer peak latencies in the left inferior parietal lobe for categorical trials. The activity in the superior parietal lobe, middle frontal gyrus, and visual cortex, was also modulated by the size of the spatial cues and by the type of spatial relation change. The present results support the theory that the lateralization of each kind of spatial processing hinges on differences in the sizes of regions of space attended to by the two hemispheres. In addition, the present findings are inconsistent with the idea of a right-hemispheric dominance for all kinds of challenging spatial tasks, since response times and accuracy rates showed that the categorical spatial relation task was more difficult than the coordinate task and the cortical activations were overall greater in the left hemisphere than in the right hemisphere.
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Affiliation(s)
- Raffaella Franciotti
- Department of Neuroscience and Imaging, G. d’Annunzio University, Chieti, Italy
- ITAB, “G. d’Annunzio” University Foundation, Chieti, Italy
- * E-mail:
| | - Stefania D’Ascenzo
- Department of Neuroscience and Imaging, G. d’Annunzio University, Chieti, Italy
| | - Alberto Di Domenico
- Department of Neuroscience and Imaging, G. d’Annunzio University, Chieti, Italy
| | - Marco Onofrj
- Department of Neuroscience and Imaging, G. d’Annunzio University, Chieti, Italy
| | - Luca Tommasi
- Department of Psychology, Humanities and Territory, G. d’Annunzio University, Chieti, Italy
| | - Bruno Laeng
- Department of Psychology, University of Oslo, Oslo, Norway
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23
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Parente A, Manfredi V, Villani F, Franceschetti S, Giovagnoli AR. Investigating higher-order cognitive functions in temporal lobe epilepsy: cognitive estimation. Epilepsy Behav 2013; 29:330-6. [PMID: 24012509 DOI: 10.1016/j.yebeh.2013.07.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 07/19/2013] [Accepted: 07/31/2013] [Indexed: 10/26/2022]
Abstract
Cognitive estimation, an ability to attribute measurements to concrete things, is relevant to adaptive behavior. This study evaluated cognitive estimation in patients with temporal lobe epilepsy (TLE) with the goal of verifying its relationship to temporal lobe damage and age of seizure onset. One hundred and eight patients with drug-resistant TLE and 51 healthy controls were evaluated using the Cognitive Estimation Task (CET), which requires simple and complex estimations providing the Total and Bizarreness scores. Different tests assessed reasoning, attention, executive, visuospatial, and lexical-semantic abilities. Patients with right TLE had earlier age of seizure onset than patients with left TLE and lower education than controls. Compared with controls, both patient groups obtained worse CET Total and Bizarreness scores, but only patients with right TLE were significantly impaired. Patients with seizure onset before age 12 showed worse scores than patients with later seizure onset irrespective of the side of TLE. The CET Total and Bizarreness scores were predicted by age of seizure onset and semantic fluency; the Bizarreness score also related to education, chronological age, and visual attention. Results highlight the complexity of the cognitive pattern associated with TLE. Cognitive estimation deficit primarily reflects early age of seizure onset and semantic difficulties. An involvement of visual mental operations mediated by the right hemisphere may accentuate the deficit, while cognitive reserve may play a protective role.
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Affiliation(s)
- Annalisa Parente
- Department of Diagnostics and Applied Technology, Fondazione IRCCS Istituto Neurologico C. Besta, Milano, Italy
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24
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Suegami T, Laeng B. A left cerebral hemisphere’s superiority in processing spatial-categorical information in a non-verbal semantic format. Brain Cogn 2013; 81:294-302. [DOI: 10.1016/j.bandc.2012.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 10/11/2012] [Accepted: 10/22/2012] [Indexed: 10/27/2022]
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25
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The roles of categorical and coordinate spatial relations in recognizing buildings. Atten Percept Psychophys 2012; 74:1732-41. [DOI: 10.3758/s13414-012-0353-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Sack AT, Schuhmann T. Hemispheric Differences within the Fronto-Parietal Network Dynamics Underlying Spatial Imagery. Front Psychol 2012; 3:214. [PMID: 22754546 PMCID: PMC3385155 DOI: 10.3389/fpsyg.2012.00214] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 06/08/2012] [Indexed: 11/19/2022] Open
Abstract
Spatial imagery refers to the inspection and evaluation of spatial features (e.g., distance, relative position, configuration) and/or the spatial manipulation (e.g., rotation, shifting, reorienting) of mentally generated visual images. In the past few decades, psychophysical as well as functional brain imaging studies have indicated that any such processing of spatially coded information and/or manipulation based on mental images (i) is subject to similar behavioral demands and limitations as in the case of spatial processing based on real visual images, and (ii) consistently activates several nodes of widely distributed cortical networks in the brain. These nodes include areas within both, the dorsal fronto-parietal as well as ventral occipito-temporal visual processing pathway, representing the “what” versus “where” aspects of spatial imagery. We here describe evidence from functional brain imaging and brain interference studies indicating systematic hemispheric differences within the dorsal fronto-parietal networks during the execution of spatial imagery. Importantly, such hemispheric differences and functional lateralization principles are also found in the effective brain network connectivity within and across these networks, with a direction of information flow from anterior frontal/premotor regions to posterior parietal cortices. In an attempt to integrate these findings of hemispheric lateralization and fronto-to-parietal interactions, we argue that spatial imagery constitutes a multifaceted cognitive construct that can be segregated in several distinct mental sub processes, each associated with activity within specific lateralized fronto-parietal (sub) networks, forming the basis of the here proposed dynamic network model of spatial imagery.
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Affiliation(s)
- Alexander T Sack
- Faculty of Psychology and Neuroscience, Maastricht University Maastricht, Netherlands
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27
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van der Ham IJ, van Wezel RJ, Oleksiak A, van Zandvoort MJ, Frijns CJ, Jaap Kappelle L, Postma A. The effect of stimulus features on working memory of categorical and coordinate spatial relations in patients with unilateral brain damage. Cortex 2012; 48:737-45. [DOI: 10.1016/j.cortex.2011.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Revised: 10/06/2010] [Accepted: 02/08/2011] [Indexed: 10/18/2022]
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28
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Distinct neural networks underlie encoding of categorical versus coordinate spatial relations during active navigation. Neuroimage 2012; 60:1630-7. [DOI: 10.1016/j.neuroimage.2012.01.089] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 01/14/2012] [Accepted: 01/17/2012] [Indexed: 11/20/2022] Open
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29
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Integration of “what” and “where” in frontal cortex during visual imagery of scenes. Neuroimage 2012; 60:47-58. [DOI: 10.1016/j.neuroimage.2011.12.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 12/01/2011] [Accepted: 12/02/2011] [Indexed: 11/21/2022] Open
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Quadflieg S, Etzel JA, Gazzola V, Keysers C, Schubert TW, Waiter GD, Macrae CN. Puddles, parties, and professors: linking word categorization to neural patterns of visuospatial coding. J Cogn Neurosci 2011; 23:2636-49. [PMID: 21268671 DOI: 10.1162/jocn.2011.21628] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Behavioral evidence suggests that during word processing people spontaneously map object, valence, and power information to locations in vertical space. Specifically, whereas "overhead" (e.g., attic), positive (e.g., party), and powerful nouns (e.g., professor) are associated with "up," "underfoot" (e.g., carpet), negative (e.g., accident), and powerless nouns (e.g., assistant) are associated with "down." What has yet to be elucidated, however, is the precise nature of these effects. To explore this issue, an fMRI experiment was undertaken, during which participants were required to categorize the position in which geometrical shapes appeared on a computer screen (i.e., upper or lower part of the display). In addition, they also judged a series of words with regard to location (i.e., up vs. down), valence (i.e., good vs. bad), and power (i.e., powerful vs. powerless). Using multivoxel pattern analysis, it was found that classifiers that successfully distinguished between the positions of shapes in subregions of the inferior parietal lobe also provided discriminatory information to separate location and valence, but not power word judgments. Correlational analyses further revealed that, for location words, pattern transfer was more successful the stronger was participants' propensity to use visual imagery. These findings indicate that visual coding and conceptual processing can elicit common representations of verticality but that divergent mechanisms may support the reported effects.
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Ruotolo F, van der Ham IJM, Iachini T, Postma A. The relationship between allocentric and egocentric frames of reference and categorical and coordinate spatial information processing. Q J Exp Psychol (Hove) 2011; 64:1138-56. [PMID: 21271464 DOI: 10.1080/17470218.2010.539700] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We report two experiments on the relationship between allocentric/egocentric frames of reference and categorical/coordinate spatial relations. Jager and Postma (2003) suggest two theoretical possibilities about their relationship: categorical judgements are better when combined with an allocentric reference frame and coordinate judgements with an egocentric reference frame (interaction hypothesis); allocentric/egocentric and categorical/coordinate form independent dimensions (independence hypothesis). Participants saw stimuli comprising two vertical bars (targets), one above and the other below a horizontal bar. They had to judge whether the targets appeared on the same side (categorical) or at the same distance (coordinate) with respect either to their body-midline (egocentric) or to the centre of the horizontal bar (allocentric). The results from Experiment 1 showed a facilitation in the allocentric and categorical conditions. In line with the independence hypothesis, no interaction effect emerged. To see whether the results were affected by the visual salience of the stimuli, in Experiment 2 the luminance of the horizontal bar was reduced. As a consequence, a significant interaction effect emerged indicating that categorical judgements were more accurate than coordinate ones, and especially so in the allocentric condition. Furthermore, egocentric judgements were as accurate as allocentric ones with a specific improvement when combined with coordinate spatial relations. The data from Experiment 2 showed that the visual salience of stimuli affected the relationship between allocentric/egocentric and categorical/coordinate dimensions. This suggests that the emergence of a selective interaction between the two dimensions may be modulated by the characteristics of the task.
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Affiliation(s)
- Francesco Ruotolo
- Department of Psychology, Second University of Naples, Naples, Italy.
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32
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Cheng K, Spetch ML, Hoan A. Categories and range effects in human spatial memory. Front Psychol 2010; 1:231. [PMID: 21833286 PMCID: PMC3153836 DOI: 10.3389/fpsyg.2010.00231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 12/07/2010] [Indexed: 11/13/2022] Open
Abstract
After learning a particular target stimulus, such as a location, humans' judgments of whether a particular stimulus is the target or not is affected by the range of stimuli presented on tests. In such frequently found range effects, the peak of "yes" responses shifts toward the middle of the range of tested stimuli. Humans also code both the metric value and categorical information regarding a target stimulus, and use both forms of codes, such that responses are biased toward the category middle (category adjustment model, Duffy et al., 2010). Categorical codes should also affect range effects, with a test range crossing category boundaries producing less range effect than a test range within a category. We examined a set of past results presented in a review of range effects in humans (Thomas, 1993) for functional explanations in light of categorical coding, and found that all results could be reasonably explained. Additional experiments comparing range effects across vs. within a category found limited supporting evidence, perhaps because the range effects were weak. The adaptive functions of using (in part) categorical coding accounts for many seemingly peculiar biases in human cognition.
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Affiliation(s)
- Ken Cheng
- Department of Biological Sciences, Macquarie UniversitySydney, NSW, Australia
| | - Marcia L. Spetch
- Department of Psychology, University of AlbertaEdmonton, AB, Canada
| | - Andros Hoan
- Department of Brain, Behaviour and Evolution, Macquarie UniversitySydney, NSW, Australia
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33
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de Graaf TA, Roebroeck A, Goebel R, Sack AT. Brain Network Dynamics Underlying Visuospatial Judgment: An fMRI Connectivity Study. J Cogn Neurosci 2010; 22:2012-26. [DOI: 10.1162/jocn.2009.21345] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Abstract
Previous functional imaging research has consistently indicated involvement of bilateral fronto-parietal networks during the execution of visuospatial tasks. Studies with TMS have suggested that the right hemispheric network, but not the left, is functionally relevant for visuospatial judgments. However, very little is still known about the interactions within these fronto-parietal networks underlying visuospatial processing. In the current study, we investigated task modulation of functional connectivity (instantaneous correlations of regional time courses), and task-specific effective connectivity (direction of influences), within the right fronto-parietal network activated during visuospatial judgments. Ten healthy volunteers performed a behaviorally controlled visuospatial judgment task (ANGLE) or a control task (COLOR) in an fMRI experiment. Visuospatial task-specific activations were found in posterior parietal cortex (PPC) and middle/inferior frontal gyrus (MFG). Functional connectivity within this network was task-modulated, with significantly higher connectivity between PPC and MFG during ANGLE than during COLOR. Effective connectivity analysis for directed influence revealed that visuospatial task-specific projections within this network were predominantly in a frontal-to-parietal direction. Moreover, ANGLE-specific influences from thalamic nuclei to PPC were identified. Exploratory effective connectivity analysis revealed that closely neighboring clusters, within visuospatial regions, were differentially involved in the network. These neighboring clusters had opposite effective connectivity patterns to other nodes of the fronto-parietal network. Our data thus reveal that visuospatial judgments are supported by massive fronto-parietal backprojections, thalamo-parietal influence, and multiple stages, or loops, of information flow within the visuospatial network. We speculate on possible functional contributions of the various network nodes and informational loops in a neurocognitive model.
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Affiliation(s)
- Tom A. de Graaf
- 1Maastricht University, The Netherlands
- 2Maastricht Brain Imaging Center, Maastricht, The Netherlands
| | - Alard Roebroeck
- 1Maastricht University, The Netherlands
- 2Maastricht Brain Imaging Center, Maastricht, The Netherlands
| | - Rainer Goebel
- 1Maastricht University, The Netherlands
- 2Maastricht Brain Imaging Center, Maastricht, The Netherlands
| | - Alexander T. Sack
- 1Maastricht University, The Netherlands
- 2Maastricht Brain Imaging Center, Maastricht, The Netherlands
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34
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Palermo L, Piccardi L, Nori R, Giusberti F, Guariglia C. Does hemineglect affect visual mental imagery? Imagery deficits in representational and perceptual neglect. Cogn Neuropsychol 2010; 27:115-33. [PMID: 20721762 DOI: 10.1080/02643294.2010.503478] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
To give new insight about the relationship between imagery processes and different types of hemispatial neglect, we assessed different mental imagery abilities in a sample of right- and left-brain-damaged patients. Furthermore, because of reports of a mental representation disorder for environments in patients affected by representational neglect we also tested their navigational imagery ability. We found that patients with no signs of perceptual or representational neglect performed flawlessly on our imagery tasks regardless of whether they had left- or right-sided lesions. By contrast, patients affected by neglect failed most of the tests; in particular, representational neglect patients failed one test of mental transformation and tests requiring the manipulation of cognitive maps. These results suggest there is a specific relationship between hemispatial neglect and deficits in visual mental imagery and demonstrate that the right hemisphere plays a specific role in visual mental imagery.
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Affiliation(s)
- Liana Palermo
- Dipartimento di Psicologia 39, Sapienza Universita di Roma, Via dei Marsi 78, Rome, Italy
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35
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Perneczky R, Drzezga A, Boecker H, Ceballos-Baumann AO, Valet M, Feurer R, Förstl H, Kurz A, Häussermann P. Metabolic alterations associated with impaired clock drawing in Lewy body dementia. Psychiatry Res 2010; 181:85-9. [PMID: 20074912 DOI: 10.1016/j.pscychresns.2009.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Revised: 08/03/2009] [Accepted: 08/03/2009] [Indexed: 11/29/2022]
Abstract
The clock drawing test (CDT) is a widely used dementia screening instrument that assesses executive and visuospatial abilities; studies in patients with Alzheimer's disease (AD) suggest frontoposterior networks to be involved in clock drawing. Clock drawing errors are also often observed in dementia with Lewy bodies (DLB), but the functional neuroanatomical substrate of impaired clock drawing has not been firmly established in this disorder. The present study was designed to provide initial evidence for brain metabolic alterations associated with CDT performance in DLB. Twenty-one patients with DLB were enrolled. CDT ratings were correlated with the regional cerebral metabolic rate of glucose (rCMRglc) measured by (18)F-fluoro-2-deoxy-glucose positron emission tomography ((18)F-FDG PET) in the statistical parametric mapping software package SPM5, controlling for overall cognitive impairment as measured by the Mini-Mental-State Examination (MMSE) score. There was a significant negative association between test scores and rCMRglc in a left-hemispheric posterofrontal network including the temporoparietal and dorsal pre-motor cortices and the precuneus. The present study provides evidence for a direct association between frontoparietal dysfunction and impaired CDT performance in DLB. These findings also suggest that the CDT is an appropriate screening instrument for this disorder and that metabolic dysfunction, and therefore disease severity, is mirrored by performance on the test.
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Affiliation(s)
- Robert Perneczky
- Department of Psychiatry and Psychotherapy, Technische Ismaninger Str. 22, 81675 München, Germany.
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36
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van der Ham IJ, Raemaekers M, van Wezel RJ, Oleksiak A, Postma A. Categorical and coordinate spatial relations in working memory: An fMRI study. Brain Res 2009; 1297:70-9. [DOI: 10.1016/j.brainres.2009.07.088] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Revised: 07/14/2009] [Accepted: 07/25/2009] [Indexed: 11/28/2022]
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37
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Struiksma ME, Noordzij ML, Postma A. What is the link between language and spatial images? Behavioral and neural findings in blind and sighted individuals. Acta Psychol (Amst) 2009; 132:145-56. [PMID: 19457462 DOI: 10.1016/j.actpsy.2009.04.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2008] [Revised: 04/02/2009] [Accepted: 04/17/2009] [Indexed: 10/20/2022] Open
Abstract
In order to find objects or places in the world, multiple sources of information, such as visual input, auditory input and asking for directions, can help you. These different sources of information can be converged into a spatial image, which represents configurational characteristics of the world. This paper discusses the findings on the nature of spatial images and the role of spatial language in generating these spatial images in both blind and sighted individuals. Congenitally blind individuals have never experienced visual input, yet they are able to perform several tasks traditionally associated with spatial imagery, such as mental scanning, mental pathway completions and mental clock time comparison, though perhaps not always in a similar manner as sighted. Therefore, they offer invaluable insights into the exact nature of spatial images. We will argue that spatial imagery exceeds the input from different input modalities to form an abstract mental representation while maintaining connections with the input modalities. This suggests that the nature of spatial images is supramodal, which can explain functional equivalent results from verbal and perceptual inputs for spatial situations and subtle to moderate behavioral differences between the blind and sighted.
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38
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Lateralization of egocentric and allocentric spatial processing after parietal brain lesions. Brain Cogn 2009; 69:514-20. [DOI: 10.1016/j.bandc.2008.11.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 10/23/2008] [Accepted: 11/10/2008] [Indexed: 11/19/2022]
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39
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Harrington GS, Farias D, Davis CH. The neural basis for simulated drawing and the semantic implications. Cortex 2009; 45:386-93. [DOI: 10.1016/j.cortex.2007.10.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2007] [Revised: 09/07/2007] [Accepted: 10/03/2007] [Indexed: 11/26/2022]
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40
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Emotional state and local versus global spatial memory. Acta Psychol (Amst) 2009; 130:138-46. [PMID: 19100525 DOI: 10.1016/j.actpsy.2008.11.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2008] [Revised: 11/11/2008] [Accepted: 11/13/2008] [Indexed: 11/22/2022] Open
Abstract
The present work investigated the effects of participant emotional state on global versus local memory for map-based information. Participants were placed into one of four emotion induction groups, crossing high and low arousal with positive and negative valence, or a control group. They then studied a university campus map and completed two memory tests, free recall and spatial statement verification. Converging evidence from these two tasks demonstrated that arousal amplifies symbolic distance effects and leads to a globally-focused spatial mental representation, partially at the expense of local knowledge. These results were found for both positively- and negatively-valenced affective states. The present study is the first investigation of emotional effects on spatial memory, and has implications for theories of emotion and spatial cognition.
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Abstract
The neurobiological processes underlying mental imagery are a matter of debate and controversy among neuroscientists, cognitive psychologists, philosophers, and biologists. Recent neuroimaging studies demonstrated that the execution of mental imagery activates large frontoparietal and occipitotemporal networks in the human brain. These previous imaging studies, however, neglected the crucial interplay within and across the widely distributed cortical networks of activated brain regions. Here, we combined time-resolved event-related functional magnetic resonance imaging with analyses of interactions between brain regions (functional and effective brain connectivity) to unravel the premotor-parietal dynamics underlying spatial imagery. Participants had to sequentially construct and spatially transform a mental visual object based on either verbal or visual instructions. By concurrently accounting for the full spatiotemporal pattern of brain activity and network connectivity, we functionally segregated an early from a late premotor-parietal imagery network. Moreover, we revealed that the modality-specific information upcoming from sensory brain regions is first sent to the premotor cortex and then to the medial-dorsal parietal cortex, i.e., top-down from the motor to the perceptual pole during spatial imagery. Importantly, we demonstrate that the premotor cortex serves as the central relay station, projecting to parietal cortex at two functionally distinct stages during spatial imagery. Our approach enabled us to disentangle the multicomponential cognitive construct of mental imagery into its different cognitive subelements. We discuss and explicitly assign these mental subprocesses to each of the revealed effective brain connectivity networks and present an integrative neurobiological model of spatial imagery.
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43
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Palermo L, Bureca I, Matano A, Guariglia C. Hemispheric contribution to categorical and coordinate representational processes: A study on brain-damaged patients. Neuropsychologia 2008; 46:2802-7. [DOI: 10.1016/j.neuropsychologia.2008.05.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2007] [Revised: 05/13/2008] [Accepted: 05/14/2008] [Indexed: 10/22/2022]
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44
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45
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Denis M. Assessing the symbolic distance effect in mental images constructed from verbal descriptions: a study of individual differences in the mental comparison of distances. Acta Psychol (Amst) 2008; 127:197-210. [PMID: 17658445 DOI: 10.1016/j.actpsy.2007.05.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2006] [Revised: 04/16/2007] [Accepted: 05/07/2007] [Indexed: 11/21/2022] Open
Abstract
In two experiments, undergraduates processed a verbal description of a spatial configuration on the periphery of which six landmarks were located. The participants were then invited to generate visual images of the configuration, and to visualize the distances between pairs of landmarks. Their task consisted of deciding which of the two specified distances was longer. The results showed that as the magnitude of the differences in distance increased, the frequency of correct responses was higher, and response times were shorter. This pattern of results is characteristic of the symbolic distance effect, which is especially interesting in the present experiment where the images generated by the participants were constructed after processing a verbal description (rather than reconstructed from previous perceptual experience). In order to assess the role of visual imagery in the comparison of distances, the performance of participants with the highest scores on a visuo-spatial test (the Minnesota Paper Form Board) was compared to that of those with the lowest scores. High visuo-spatial imagers had higher frequencies of correct responses and shorter response times than the low imagers in the distance-comparison task. They outperformed their counterparts even more clearly on the items where the distance differences were the smallest, suggesting that visual imagery is especially important for items requiring the most attentive examination of a visual image. These data are interpreted as reflecting the fact that visual imagery mediates the process of mentally comparing distances, even when learning has been essentially based on verbal input. These findings support the view that a representation constructed from a verbal description may incorporate metric information about distances, and they offer evidence suggesting that visual images constructed from descriptive texts have genuine analog properties.
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Affiliation(s)
- Michel Denis
- Groupe Cognition Humaine, LIMSI-CNRS, Université de Paris-Sud, BP 133, 91403 Orsay, France.
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46
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Chapter 19 Visuospatial and visuoconstructive deficits. HANDBOOK OF CLINICAL NEUROLOGY 2008; 88:373-91. [DOI: 10.1016/s0072-9752(07)88019-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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The two sides of the mental clock: the Imaginal HemiSpatial Effect in the healthy brain. Brain Cogn 2007; 66:298-305. [PMID: 18006132 DOI: 10.1016/j.bandc.2007.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2006] [Revised: 09/05/2007] [Accepted: 10/08/2007] [Indexed: 11/21/2022]
Abstract
When subjects are asked to compare the mental images of two analog clocks telling different times (the mental clock test), they are faster to process angles formed by hands located in the right than in the left half of the dial. In the present paper, we demonstrate that this Imaginal HemiSpatial Effect (IHSE) can be also observed in two modified versions of the mental clock test: in Experiment 1 subjects had to imagine the position occupied by two numbers within a clock face and to judge if the subtended angle was smaller or greater than 90 degrees , while in Experiment 2 subjects were asked to match two imagined positions on a clock face with two visually presented locations. The finding of the IHSE in these tasks suggested that it is a genuine phenomenon related to spatial imagery tasks, and is consistent with recent neuroimaging evidence that the left parietal lobe is mainly involved in the generation of spatial mental images.
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48
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Is there continuity between categorical and coordinate spatial relations coding? Evidence from a grid/no-grid working memory paradigm. Neuropsychologia 2007; 46:576-94. [PMID: 18037455 DOI: 10.1016/j.neuropsychologia.2007.10.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2007] [Revised: 10/04/2007] [Accepted: 10/05/2007] [Indexed: 11/22/2022]
Abstract
We ask the question whether the coding of categorical versus coordinate spatial relations depends on different neural networks showing hemispheric specialization or whether there is continuity between these two coding types. The 'continuous spatial coding' hypothesis would mean that the two coding types rely essentially on the same neural network consisting of more general-purpose processes, such as visuo-spatial attention, but with a different weighting of these general processes depending on exact task requirements. With event-related fMRI, we have studied right-handed male subjects performing a grid/no-grid visuo-spatial working memory task inducing categorical and coordinate spatial relations coding. Our data support the 'continuous spatial coding' hypothesis, indicating that, while based on the same fronto-parieto-occipital neural network than categorical spatial relations coding, the coding of coordinate spatial relations relies more heavily on attentional and executive processes, which could induce hemispheric differences similar to those described in the literature. The results also show that visuo-spatial working memory consists of a short-term posterior store with a capacity of up to three elements in the parietal and extrastriate cortices. This store depends on the presence of a visible space categorization and thus can be used for the coding of categorical spatial relations. When no visible space categorization is given or when more than three elements have to be coded, additional attentional and executive processes are recruited, mainly located in the dorso-lateral prefrontal cortex.
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Harrington GS, Farias D, Davis CH, Buonocore MH. Comparison of the neural basis for imagined writing and drawing. Hum Brain Mapp 2007; 28:450-9. [PMID: 16944477 PMCID: PMC6871467 DOI: 10.1002/hbm.20286] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Drawing and writing are complex processes that require the synchronization of cognition, language, and perceptual-motor skills. Drawing and writing have both been utilized in the treatment of aphasia to improve communication. Recent research suggests that the act of drawing an object facilitated naming, whereas writing the word diminished accurate naming in individuals with aphasia. However, the relationship between object drawing and subsequent phonological output is unclear. Although the right hemisphere is characteristically mute, there is evidence from split-brain research that the right hemisphere can integrate pictures and words, likely via a semantic network. We hypothesized that drawing activates right hemispheric and left perilesional regions that are spared in aphasic individuals and may contribute to semantic activation that supports naming. Eleven right-handed subjects participated in a functional MRI (fMRI) experiment involving imagined drawing and writing and 6 of the 11 subjects participated in a second fMRI experiment involving actual writing and drawing. Drawing and writing produced very similar group activation maps including activation bilaterally in the premotor, inferior frontal, posterior inferior temporal, and parietal areas. The comparison of drawing vs. writing revealed significant differences between the conditions in areas of the brain known for language processing. The direct comparison between drawing and writing revealed greater right hemisphere activation for drawing in language areas such as Brodmann area (BA) 46 and BA 37.
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Affiliation(s)
- Greg S Harrington
- Department of Radiology, University of California at Davis, Sacramento, California, USA
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50
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Sack AT, Kohler A, Bestmann S, Linden DEJ, Dechent P, Goebel R, Baudewig J. Imaging the brain activity changes underlying impaired visuospatial judgments: simultaneous FMRI, TMS, and behavioral studies. ACTA ACUST UNITED AC 2007; 17:2841-52. [PMID: 17337745 DOI: 10.1093/cercor/bhm013] [Citation(s) in RCA: 147] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Damage to parietal cortex impairs visuospatial judgments. However, it is currently unknown how this damage may affect or indeed be caused by functional changes in remote but interconnected brain regions. Here, we applied transcranial magnetic stimulation (TMS) to the parietal cortices during functional magnetic resonance imaging (fMRI) while participants were solving visuospatial tasks. This allowed us to observe both the behavioral and the neural effects of transient parietal activity disruption in the active healthy human brain. Our results show that right, but not left, parietal TMS impairs visuospatial judgment, induces neural activity changes in a specific right-hemispheric network of frontoparietal regions, and shows significant correlations between the induced behavioral impairment and neural activity changes in both the directly stimulated parietal and remote ipsilateral frontal brain regions. The revealed right-hemispheric neural network effect of parietal TMS represents the same brain areas that are functionally connected during the execution of visuospatial judgments. This corroborates the notion that visuospatial deficits following parietal damage are brought about by a perturbation of activity across a specific frontoparietal network, rather than the lesioned parietal site alone. Our experiments furthermore show how concurrent fMRI and magnetic brain stimulation during active task execution hold the potential to identify and visualize networks of brain areas that are functionally related to specific cognitive processes.
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Affiliation(s)
- Alexander T Sack
- Department of Cognitive Neuroscience, Faculty of Psychology, Maastricht University, 6200 MD Maastricht, The Netherlands.
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