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Lemmetyinen S, Hokkanen L, Vehviläinen V, Klippi A. Recovery of gestures for persons with severe non-fluent aphasia and limb apraxia: A long-term follow-up study. APPLIED NEUROPSYCHOLOGY. ADULT 2024:1-12. [PMID: 38801404 DOI: 10.1080/23279095.2024.2355668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Persons with severe non-fluent aphasia would benefit from using gestures to substitute for their absent powers of speech. The use of gestures, however, is challenging for persons with aphasia and concomitant limb apraxia. Research on the long-term recovery of gestures is scant, and it is unclear whether gesture performance can show recovery over time. This study evaluated the recovery of emblems and tool use pantomimes of persons with severe non-fluent aphasia and limb apraxia after a left hemisphere stroke. The Florida Apraxia Screening Test-Revised (FAST-R) was used for measurements. The test includes 30 gestures to be performed (i) after an oral request, (ii) with the aid of a pictorial cue, or (iii) as an imitation. The gestures were rated on their degree of comprehensibility. The comprehensibility of gestures after an oral request improved significantly in five out of seven participants between the first (1-3 months after the stroke) and the last (3 years after) examination. Improvement continued for all five in the period between six months and three years. The imitation model did improve the comprehensibility of gestures for all participants, whereas the pictorial cue did so just slightly. The skill of producing gestures can improve even in the late phase post-stroke. Because of this potential, we suggest that gesture training should be systematically included in the rehabilitation of communication for persons with severe non-fluent aphasia.
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Affiliation(s)
- Sanna Lemmetyinen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
- Services of Speech and Language Therapy, Wellbeing Services County of North Karelia, Joensuu, Finland
| | - Laura Hokkanen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Viivi Vehviläinen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Anu Klippi
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
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2
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Stoll SEM, Bauer I, Hopfer K, Lamberty J, Lunz V, Guzmán Bausch F, Höflacher C, Kroliczak G, Kalénine S, Randerath J. Diagnosing homo digitalis: towards a standardized assessment for digital tool competencies. Front Psychol 2024; 14:1270437. [PMID: 38239458 PMCID: PMC10794727 DOI: 10.3389/fpsyg.2023.1270437] [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: 07/31/2023] [Accepted: 11/28/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction In the 21st century, digital devices have become integral to our daily lives. Still, practical assessments designed to evaluate an individual's digital tool competencies are absent. The present study introduces the "Digital Tools Test" ("DIGI"), specifically designed for the evaluation of one's proficiency in handling common applications and functions of smartphones and tablets. The DIGI assessment has been primarily tailored for prospective use among older adults and neurological patients with the latter frequently suffering from so-called apraxia, which potentially also affects the handling of digital tools. Similar to traditional tool use tests that assess tool-selection and tool-action processes, the DIGI assessment evaluates an individual's ability to select an appropriate application for a given task (e.g., creating a new contact), their capacity to navigate within the chosen application and their competence in executing precise and accurate movements, such as swiping. Methods We tested the implementation of the DIGI in a group of 16 healthy adults aged 18 to 28 years and 16 healthy adults aged 60 to 74 years. All participants were able to withstand the assessment and reported good acceptance. Results The results revealed a significant performance disparity, with older adults displaying notably lower proficiency in the DIGI. The DIGI performance of older adults exhibited a correlation with their ability to employ a set of novel mechanical tools, but not with their ability to handle a set of familiar common tools. There was no such correlation for the younger group. Conclusion In conclusion, this study introduces an innovative assessment tool aimed at evaluating common digital tool competencies. Our preliminary results demonstrate good acceptance and reveal expected group differences. For current cohorts of older adults, the results seem to indicate that the ability to use novel tools may aid digital tool use. In the next step, the psychometric properties of the DIGI assessment should be evaluated in larger and more diverse samples. The advancement of digital tool competency assessments and rehabilitation strategies is essential when we aim at facilitating societal inclusion and participation for individuals in affected populations.
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Affiliation(s)
- Sarah E. M. Stoll
- Department of Psychology, University of Konstanz, Konstanz, Germany
- Lurija Institute for Rehabilitation Science and Health Research, Kliniken Schmieder, Allensbach, Germany
- Department of Developmental and Educational Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Isabel Bauer
- Department of Psychology, University of Konstanz, Konstanz, Germany
- Lurija Institute for Rehabilitation Science and Health Research, Kliniken Schmieder, Allensbach, Germany
| | - Karen Hopfer
- Department of Psychology, University of Konstanz, Konstanz, Germany
| | - Judith Lamberty
- Department of Psychology, University of Konstanz, Konstanz, Germany
| | - Verena Lunz
- Department of Psychology, University of Konstanz, Konstanz, Germany
| | | | - Cosima Höflacher
- Department of Psychology, University of Konstanz, Konstanz, Germany
| | - Gregory Kroliczak
- Cognitive Neuroscience Center, Action and Cognition Laboratory, Faculty of Psychology and Cognitive Science, Adam Mickiewicz University, Poznan, Poland
- Department of Clinical Neuropsychology, Nicolaus Copernicus University in Toruń Collegium Medicum, Bydgoszcz, Poland
| | - Solène Kalénine
- Sciences Cognitives Et Sciences Affectives, University of Lille, Lille, France
| | - Jennifer Randerath
- Department of Psychology, University of Konstanz, Konstanz, Germany
- Lurija Institute for Rehabilitation Science and Health Research, Kliniken Schmieder, Allensbach, Germany
- Outpatient Unit for Research, Teaching, and Practice, Faculty of Psychology, University of Vienna, Vienna, Austria
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3
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Benke T. Letter to the Editor. Epilepsy Behav Rep 2021; 16:100453. [PMID: 34095803 PMCID: PMC8165397 DOI: 10.1016/j.ebr.2021.100453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 12/02/2022] Open
Affiliation(s)
- Thomas Benke
- Clinic of Neurology, Medical University Innsbruck, Austria
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Rounis E, Halai A, Pizzamiglio G, Lambon Ralph MA. Characterising factors underlying praxis deficits in chronic left hemisphere stroke patients. Cortex 2021; 142:154-168. [PMID: 34271260 DOI: 10.1016/j.cortex.2021.04.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 03/02/2021] [Accepted: 04/29/2021] [Indexed: 11/17/2022]
Abstract
Limb apraxia, a disorder of skilled action not consequent on primary motor or sensory deficits, has traditionally been defined according to errors patients make on neuropsychological tasks. Previous models of the disorder have failed to provide a unified account of patients' deficits, due to heterogeneity in the patients and tasks used. In this study we hypothesised that we may be able to map apraxic deficits onto principal components, some of which may be specific, whilst others may align with other cognitive disorders. We implemented principal component analysis (PCA) to elucidate core factors of the disorder in a preliminary cohort of 41 unselected left hemisphere chronic stroke patients who were tested on a comprehensive and validated apraxia screen. Three principal components were identified: posture selection, semantic control and multi-demand sequencing. These were submitted to a lesion symptom mapping (VBCM) analysis in a subset of 24 patients, controlled for lesion volume, age and time post-stroke. The first component revealed no significant structural correlates. The second component was related to regions in inferior frontal gyrus, primary motor area, and adjacent parietal opercular (including inferior parietal and supramarginal gyrus) areas. The third component was associated with lesions within the white matter underlying the left sensorimotor cortex, likely involving the 2nd branch of the left superior longitudinal fasciculus as well as the posterior orbitofrontal cortex (pOFC). These results highlight a significant role of common cognitive functions in apraxia, which include action selection, and sequencing, whilst more specific deficits may relate to semantic control. Moreover, they suggest that previously described 'ideomotor' and 'ideational' deficits may have a common neural basis within semantic control. Further research using this technique would help elucidate the cognitive processes underlying limb apraxia, its neural correlates and their relationship with other cognitive disorders.
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Affiliation(s)
- Elisabeth Rounis
- Chelsea and Westminster NHS Foundation Trust, West Middlesex University Hospital, Isleworth, UK; Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.
| | - Ajay Halai
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK
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5
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Kroliczak G, Buchwald M, Kleka P, Klichowski M, Potok W, Nowik AM, Randerath J, Piper BJ. Manual praxis and language-production networks, and their links to handedness. Cortex 2021; 140:110-127. [PMID: 33975084 DOI: 10.1016/j.cortex.2021.03.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/05/2021] [Accepted: 03/19/2021] [Indexed: 10/21/2022]
Abstract
While Liepmann was one of the first researchers to consider a relationship between skilled manual actions (praxis) and language for tasks performed "freely from memory", his primary focus was on the relations between the organization of praxis and left-hemisphere dominance. Subsequent attempts to apply his apraxia model to all cases he studied - including his first patient, a "non-pure right-hander" treated as an exception - left the praxis-handedness issue unresolved. Modern neuropsychological and recent neuroimaging evidence either showed closer associations of praxis and language, than between handedness and any of these two functions, or focused on their dissociations. Yet, present-day developments in neuroimaging and statistics allow us to overcome the limitations of the earlier work on praxis-language-handedness links, and to better quantify their interrelationships. Using functional magnetic resonance imaging (fMRI), we studied tool use pantomimes and subvocal word generation in 125 participants, including righthanders (NRH = 52), ambidextrous individuals (mixedhanders; NMH = 31), and lefthanders (NLH = 42). Laterality indices were calculated both in two critical cytoarchitectonic maps, and 180 multi-modal parcellations of the human cerebral cortex, using voxel count and signal intensity, and the most relevant regions of interest and their networks were further analyzed. We found that atypical organization of praxis was present in all handedness groups (RH = 25.0%, MH = 22.6%; LH = 45.2%), and was about two and a half times as common as atypical organization of language (RH = 3.8%; MH = 6.5%; LH = 26.2%), contingent on ROI selection/LI-calculation method. Despite strong associations of praxis and language, regardless of handedness and typicality, dissociations of atypically represented praxis from typical left-lateralized language were common (~20% of cases), whereas the inverse dissociations of atypically represented language from typical left-lateralized praxis were very rare (in ~2.5% of all cases). The consequences of the existence of such different phenotypes for theoretical accounts of manual praxis, and its links to language and handedness are modeled and discussed.
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Affiliation(s)
- Gregory Kroliczak
- Action and Cognition Laboratory, Adam Mickiewicz University, Poznan, Poland; Faculty of Psychology and Cognitive Science, Adam Mickiewicz University, Poznan, Poland.
| | - Mikolaj Buchwald
- Action and Cognition Laboratory, Adam Mickiewicz University, Poznan, Poland
| | - Pawel Kleka
- Faculty of Psychology and Cognitive Science, Adam Mickiewicz University, Poznan, Poland
| | - Michal Klichowski
- Action and Cognition Laboratory, Adam Mickiewicz University, Poznan, Poland; Faculty of Educational Studies, Adam Mickiewicz University, Poznan, Poland
| | - Weronika Potok
- Neural Control of Movement Laboratory, Department of Health Sciences and Technology, Swiss Federal Institute of Technology, Zurich, Switzerland
| | - Agnieszka M Nowik
- Action and Cognition Laboratory, Adam Mickiewicz University, Poznan, Poland; Faculty of Psychology and Cognitive Science, Adam Mickiewicz University, Poznan, Poland
| | - Jennifer Randerath
- University of Konstanz, Konstanz, Germany; Lurija Institute for Rehabilitation Sciences and Health Research at the University of Konstanz, Konstanz, Germany
| | - Brian J Piper
- Department of Medical Education, Geisinger Commonwealth School of Medicine, Scranton, PA, USA
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6
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Vanbellingen T, Pastore-Wapp M, Kübel S, Nyffeler T, Schüpfer AC, Kiefer C, Zizlsperger L, Lutz K, Luft AR, Walther S, Bohlhalter S. Interhemispheric facilitation of gesturing: A combined theta burst stimulation and diffusion tensor imaging study. Brain Stimul 2020; 13:457-463. [DOI: 10.1016/j.brs.2019.12.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 11/29/2019] [Accepted: 12/14/2019] [Indexed: 12/12/2022] Open
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7
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Finkel L, Schmidt K, Scheib JPP, Randerath J. Does it still fit? - Adapting affordance judgments to altered body properties in young and older adults. PLoS One 2019; 14:e0226729. [PMID: 31887155 PMCID: PMC6936784 DOI: 10.1371/journal.pone.0226729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 12/04/2019] [Indexed: 11/18/2022] Open
Abstract
Actor-related affordance judgments are decisions about potential actions that arise from environmental as well as bodily and cognitive conditions. The system can be challenged by sudden changes to otherwise rather stable actor references e.g. due to accidental bodily injuries or due to brain damage and resulting motor and cognitive constraints. The current study investigated adaptation to suddenly artificially altered body properties and its reversibility in healthy young versus older adults. Participants were asked to judge whether they would be able to fit their hand through a given horizontal opening (Aperture Task). Body alterations were induced by equipping participants with one hand splint for 24 hours that enlarged the hand in width and height. Participants were tested before and directly after putting the splint on as well as after a habituation period of 24 hours. To assess reversibility, participants were tested again directly after removing the splint and one day later. Judgment accuracy values and detection theory measures were reported. Both, young and older adults judged more conservatively when body properties were altered compared to initial judgments for normal body properties. Especially older adults showed major difficulties in such quick adaptation. Older adults' judgment accuracy as well as perceptual sensitivity were significantly lowered when body properties were suddenly altered. Importantly, lowered judgment performance occurred for both, the splinted as well as the non-splinted hand in older adults. Only after 24 hours of habituation, older adults tended to regain initial performance levels showing adaptive behavior to the altered condition. Removing the hand splint for one day was sufficient to reverse these adaptive effects. Our study results suggest that aging slows down adaptation to sudden bodily alterations affecting actor-related affordance judgments. We propose that these altered processes may go along with uncertainty and a heightened concern about potential consequences of misjudgments. Clearly, future studies are needed to further elucidate the underlying processes of adaptation in affordance judgments. These may reveal major implications for the aging society and its associated problems with an increased risk of falling or stroke related bodily constraints.
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Affiliation(s)
- Lisa Finkel
- Department of Psychology, University of Konstanz, Konstanz, Germany
- Lurija Institute for Rehabilitation Science and Health Research, Kliniken Schmieder, Allensbach, Germany
| | | | - Jean Patrick Philippe Scheib
- Department of Psychology, University of Konstanz, Konstanz, Germany
- Lurija Institute for Rehabilitation Science and Health Research, Kliniken Schmieder, Allensbach, Germany
| | - Jennifer Randerath
- Department of Psychology, University of Konstanz, Konstanz, Germany
- Lurija Institute for Rehabilitation Science and Health Research, Kliniken Schmieder, Allensbach, Germany
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8
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Pizzamiglio G, Zhang Z, Kolasinski J, Riddoch JM, Passingham RE, Mantini D, Rounis E. A Role for the Action Observation Network in Apraxia After Stroke. Front Hum Neurosci 2019; 13:422. [PMID: 31920586 PMCID: PMC6933001 DOI: 10.3389/fnhum.2019.00422] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/14/2019] [Indexed: 12/17/2022] Open
Abstract
Limb apraxia is a syndrome often observed after stroke that affects the ability to perform skilled actions despite intact elementary motor and sensory systems. In a large cohort of unselected stroke patients with lesions to the left, right, and bilateral hemispheres, we used voxel-based lesion-symptom mapping (VLSM) on clinical CT head images to identify the neuroanatomical correlates of the impairment of performance in three tasks investigating praxis skills in patient populations. These included a meaningless gesture imitation task, a gesture production task involving pantomiming transitive and intransitive gestures, and a gesture recognition task involving recognition of these same categories of gestures. Neocortical lesions associated with poor performance in these tasks were all in the left hemisphere. They involved the pre-striate and medial temporal cortices, the superior temporal sulcus, inferior parietal area PGi, the superior longitudinal fasciculus underlying the primary motor cortex, and the uncinate fasciculus, subserving connections between temporal and frontal regions. No significant lesions were identified when language deficits, as indicated via a picture naming task, were controlled for. The implication of the superior temporal sulcus and the anatomically connected prestriate and inferior parietal regions challenges traditional models of the disorder. The network identified has been implicated in studies of action observation, which might share cognitive functions sub-serving praxis and language skills.
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Affiliation(s)
- Gloria Pizzamiglio
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.,Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London, London, United Kingdom
| | - Zuo Zhang
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - James Kolasinski
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.,Cardiff University Brain Research Imaging Centre, Cardiff University, Cardiff, United Kingdom
| | - Jane M Riddoch
- Department of Experimental Psychology, University of Oxford, Oxford, United Kingdom
| | - Richard E Passingham
- Department of Experimental Psychology, University of Oxford, Oxford, United Kingdom
| | - Dante Mantini
- Research Centre for Motor Control and Neuroplasticity, KU Leuven, Leuven, Belgium.,Brain Imaging and Neural Dynamics Research Group, IRCCS San Camillo Hospital, Venice, Italy
| | - Elisabeth Rounis
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
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9
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The – weak – role of memory in tool use: Evidence from neurodegenerative diseases. Neuropsychologia 2019; 129:117-132. [DOI: 10.1016/j.neuropsychologia.2019.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 03/01/2019] [Accepted: 03/12/2019] [Indexed: 11/18/2022]
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10
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Potok W, Maskiewicz A, Króliczak G, Marangon M. The temporal involvement of the left supramarginal gyrus in planning functional grasps: A neuronavigated TMS study. Cortex 2019; 111:16-34. [DOI: 10.1016/j.cortex.2018.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 09/04/2018] [Accepted: 10/02/2018] [Indexed: 01/01/2023]
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11
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Park JE. Apraxia: Review and Update. J Clin Neurol 2017; 13:317-324. [PMID: 29057628 PMCID: PMC5653618 DOI: 10.3988/jcn.2017.13.4.317] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 06/14/2017] [Accepted: 06/19/2017] [Indexed: 12/19/2022] Open
Abstract
Praxis, the ability to perform skilled or learned movements is essential for daily living. Inability to perform such praxis movements is defined as apraxia. Apraxia can be further classified into subtypes such as ideomotor, ideational and limb-kinetic apraxia. Relevant brain regions have been found to include the motor, premotor, temporal and parietal cortices. Apraxia is found in a variety of highly prevalent neurological disorders including dementia, stroke and Parkinsonism. Furthermore, apraxia has been shown to negatively affect quality of life. Therefore, recognition and treatment of this disorder is critical. This article provides an overview of apraxia and highlights studies dealing with the neurophysiology of this disorder, opening up novel perspectives for the use of motor training and noninvasive brain stimulation as treatment.
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Affiliation(s)
- Jung E Park
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea.
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12
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Ansuini C, Cavallo A, Campus C, Quarona D, Koul A, Becchio C. Are We Real When We Fake? Attunement to Object Weight in Natural and Pantomimed Grasping Movements. Front Hum Neurosci 2016; 10:471. [PMID: 27713695 PMCID: PMC5031600 DOI: 10.3389/fnhum.2016.00471] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 09/06/2016] [Indexed: 11/13/2022] Open
Abstract
Behavioral and neuropsychological studies suggest that real actions and pantomimed actions tap, at least in part, different neural systems. Inspired by studies showing weight-attunement in real grasps, here we asked whether (and to what extent) kinematics of pantomimed reach-to-grasp movement can reveal the weight of the pretended target. To address this question, we instructed participants (n = 15) either to grasp or pretend to grasp toward two differently weighted objects, i.e., a light object and heavy object. Using linear discriminant analysis, we then proceeded to classify the weight of the target - either real or pretended - on the basis of the recorded movement patterns. Classification analysis revealed that pantomimed reach-to-grasp movements retained information about object weight, although to a lesser extent than real grasp movements. These results are discussed in relation to the mechanisms underlying the control of real and pantomimed grasping movements.
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Affiliation(s)
- Caterina Ansuini
- C'MON Unit, Fondazione Istituto Italiano di Tecnologia Genova, Italy
| | - Andrea Cavallo
- Department of Psychology, University of Turin Torino, Italy
| | - Claudio Campus
- U-VIP Unit, Fondazione Istituto Italiano di Tecnologia Genova, Italy
| | - Davide Quarona
- C'MON Unit, Fondazione Istituto Italiano di Tecnologia Genova, Italy
| | - Atesh Koul
- C'MON Unit, Fondazione Istituto Italiano di Tecnologia Genova, Italy
| | - Cristina Becchio
- C'MON Unit, Fondazione Istituto Italiano di TecnologiaGenova, Italy; Department of Psychology, University of TurinTorino, Italy
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13
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Philip BA, Frey SH. Increased functional connectivity between cortical hand areas and praxis network associated with training-related improvements in non-dominant hand precision drawing. Neuropsychologia 2016; 87:157-168. [PMID: 27212059 PMCID: PMC4903896 DOI: 10.1016/j.neuropsychologia.2016.05.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/05/2016] [Accepted: 05/16/2016] [Indexed: 02/07/2023]
Abstract
Chronic forced use of the non-dominant left hand yields substantial improvements in the precision and quality of writing and drawing. These changes may arise from increased access by the non-dominant (right) hemisphere to dominant (left) hemisphere mechanisms specialized for end-point precision control. To evaluate this prediction, 22 healthy right-handed adults underwent resting state functional connectivity (FC) MRI scans before and after 10 days of training on a left hand precision drawing task. 89% of participants significantly improved left hand speed, accuracy, and smoothness. Smoothness gains were specific to the trained left hand and persistent: 6 months after training, 71% of participants exhibited above-baseline movement smoothness. Contrary to expectations, we found no evidence of increased FC between right and left hemisphere hand areas. Instead, training-related improvements in left hand movement smoothness were associated with increased FC between both sensorimotor hand areas and a left-lateralized parieto-prefrontal network implicated in manual praxis. By contrast, skill retention at 6 months was predicted by changes including decreased FC between the representation of the trained left hand and bilateral sensorimotor, parietal, and premotor cortices, possibly reflecting consolidation and a disengagement of early learning processes. These data indicate that modest amounts of training (< 200 min total) can induce substantial, persistent improvements the precision and quality of non-dominant hand control in healthy adults, supported by strengthened connectivity between bilateral sensorimotor hand areas and a left-lateralized parieto-prefrontal praxis network.
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Affiliation(s)
- Benjamin A Philip
- Department of Psychology, University of Missouri, Columbia, MO 65211, USA.
| | - Scott H Frey
- Department of Psychology, University of Missouri, Columbia, MO 65211, USA
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14
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Costello MC, Bloesch EK, Davoli CC, Panting ND, Abrams RA, Brockmole JR. Spatial representations in older adults are not modified by action: Evidence from tool use. Psychol Aging 2015; 30:656-68. [PMID: 26052886 DOI: 10.1037/pag0000029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Theories of embodied perception hold that the visual system is calibrated by both the body schema and the action system, allowing for adaptive action-perception responses. One example of embodied perception involves the effects of tool use on distance perception, in which wielding a tool with the intention to act upon a target appears to bring that object closer. This tool-based spatial compression (i.e., tool-use effect) has been studied exclusively with younger adults, but it is unknown whether the phenomenon exists with older adults. In this study, we examined the effects of tool use on distance perception in younger and older adults in 2 experiments. In Experiment 1, younger and older adults estimated the distances of targets just beyond peripersonal space while either wielding a tool or pointing with the hand. Younger adults, but not older adults, estimated targets to be closer after reaching with a tool. In Experiment 2, younger and older adults estimated the distance to remote targets while using either a baton or a laser pointer. Younger adults displayed spatial compression with the laser pointer compared to the baton, although older adults did not. Taken together, these findings indicate a generalized absence of the tool-use effect in older adults during distance estimation, suggesting that the visuomotor system of older adults does not remap from peripersonal to extrapersonal spatial representations during tool use.
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Bolognini N, Convento S, Banco E, Mattioli F, Tesio L, Vallar G. Improving ideomotor limb apraxia by electrical stimulation of the left posterior parietal cortex. Brain 2014; 138:428-39. [DOI: 10.1093/brain/awu343] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Rüther NN, Tettamanti M, Cappa SF, Bellebaum C. Observed manipulation enhances left fronto-parietal activations in the processing of unfamiliar tools. PLoS One 2014; 9:e99401. [PMID: 24911053 PMCID: PMC4049811 DOI: 10.1371/journal.pone.0099401] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 05/13/2014] [Indexed: 01/31/2023] Open
Abstract
Tools represent a special class of objects, as functional details of tools can afford certain actions. In addition, information gained via prior experience with tools can be accessed on a semantic level, providing a basis for meaningful object interactions. Conceptual representations of tools also encompass knowledge about tool manipulation which can be acquired via direct (active manipulation) or indirect (observation of others manipulating objects) motor experience. The present study aimed to explore the impact of observation of manipulation on the neural processing of previously unfamiliar, manipulable objects. Brain activity was assessed by means of functional magnetic resonance imaging while participants accomplished a visual matching task involving pictures of the novel objects before and after they received object-related training. Three training session in which subjects observed an experimenter manipulating one set of objects and visually explored another set of objects were used to make subjects familiar with the tools and to allow the formation of new tool representations. A control object set was not part of the training. Training-related brain activation increases were found for observed manipulation objects compared to not trained objects in a left-hemispheric network consisting of inferior frontal gyrus (iFG) pars opercularis and triangularis and supramarginal/angular gyrus. This illustrates that direct manipulation experience is not required to elicit tool-associated activation changes in the action system. While the iFG activation might indicate a close relationship between the areas involved in tool representation and those involved in observational knowledge acquisition, the parietal activation is discussed in terms of non-semantic effects of object affordances and hand-tool spatial relationships.
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Affiliation(s)
- Norma Naima Rüther
- Institute of Cognitive Neuroscience, Dept. of Neuropsychology, Ruhr University Bochum, Bochum, Germany
- International Graduate School of Neuroscience, Ruhr University Bochum, Bochum, Germany
- * E-mail:
| | - Marco Tettamanti
- Division Neuroscience, San Raffaele Scientific Institute, Milano, Italy
- Department of Nuclear Medicine, San Raffaele Scientific Institute, Milano, Italy
| | - Stefano F. Cappa
- Department of Nuclear Medicine, San Raffaele Scientific Institute, Milano, Italy
- Faculty of Psychology, Vita-Salute San Raffaele University, Milano, Italy
| | - Christian Bellebaum
- Institute of Experimental Psychology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
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Helon H, Króliczak G. The effects of visual half-field priming on the categorization of familiar intransitive gestures, tool use pantomimes, and meaningless hand movements. Front Psychol 2014; 5:454. [PMID: 24904470 PMCID: PMC4034417 DOI: 10.3389/fpsyg.2014.00454] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 04/28/2014] [Indexed: 11/21/2022] Open
Abstract
Although the control of meaningful gestures is one of the most left-lateralized functions, the relative contribution of the two hemispheres to their processing is still debated. We tested the effects of primes appearing in the left or right visual field in the form of pictures (Experiment 1), and words (Experiment 2) on categorization of movies showing intransitive (“communicative”) gestures, tool use (transitive) pantomimes, and meaningless movements. Fifteen participants (eight women) watched 36 movies (12 from each category) primed for 150 ms with either a congruent or incongruent stimulus followed by a 50-ms mask. On congruent trials, a picture or word was directly related to the presented gesture, including nonsense pictures or non-words for meaningless actions. On incongruent trials, a picture or word belonged to a different category. In Experiment 1, intransitive gestures were categorized significantly faster than the other two types of hand movements. Moreover, whereas the categorization of transitive gestures was significantly facilitated by congruent pictures on the right, the effect was weaker for intransitive, and reversed for meaningless movements. In Experiment 2, intransitive gestures were again categorized significantly faster, but transitive significantly slower than the other two gesture categories. Yet, there was now a significant facilitation of intransitive, and inhibition of transitive gesture categorization following congruent prime words in the right visual field, and significantly faster categorization of intransitive gestures following incongruent words in the left visual field. These outcomes lend support to the complexity account of differences in left-hemisphere representations of meaningful gestures reported in the neuropsychological, behavioral, and neuroimaging literature. Nevertheless, they also indicate that the representations of intransitive gestures show some differential, and sometimes counterintuitive sensitivity to right hemisphere processing.
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Affiliation(s)
- Honorata Helon
- Action and Cognition Laboratory, Department of Social Sciences, Institute of Psychology, Adam Mickiewicz University in Poznań Poznań, Poland
| | - Gregory Króliczak
- Action and Cognition Laboratory, Department of Social Sciences, Institute of Psychology, Adam Mickiewicz University in Poznań Poznań, Poland
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Goldenberg G. Apraxia and the parietal lobes. Neuropsychologia 2009; 47:1449-59. [DOI: 10.1016/j.neuropsychologia.2008.07.014] [Citation(s) in RCA: 250] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Revised: 06/28/2008] [Accepted: 07/13/2008] [Indexed: 11/25/2022]
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