1
|
Leukel C, Leuders T, Leuders J. Decoding of spatial proportions using somatosensory feedback in sighted and visually impaired children. Trends Neurosci Educ 2023; 32:100207. [PMID: 37689431 DOI: 10.1016/j.tine.2023.100207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 09/11/2023]
Abstract
BACKGROUND AND PURPOSE Humans can naturally operate with ratios of continuous magnitudes (proportions). We asked if sighted children (S) and visually impaired children (VI) can discriminate proportions via somatosensory feedback. PROCEDURES Children formed a proportion by tracing a pair of straight lines with their finger, and compared this proportion with a second proportion resulting from the tracing of another pair of lines. MAIN FINDINGS Performance was 68% in S, thus significantly lower (p < 0.001) compared to VI (75%). Tracing velocity (p < 0.01) and trial-to-trial variability of tracing velocity (p < 0.05) was higher in S compared to VI. CONCLUSIONS Operating with proportions solely from somatosensory feedback is possible, thus tracing lines might support learning in mathematics education. Kinematic variables point to the reason for the difference between S and VI, in that higher trial-to-trial variability in velocity in S leads to biased estimation of absolute line lengths.
Collapse
Affiliation(s)
- Christian Leukel
- University of Education Freiburg, Germany; Bernstein Center Freiburg, University of Freiburg, Germany.
| | | | | |
Collapse
|
2
|
Ottink L, Buimer H, van Raalte B, Doeller CF, van der Geest TM, van Wezel RJA. Cognitive map formation supported by auditory, haptic, and multimodal information in persons with blindness. Neurosci Biobehav Rev 2022; 140:104797. [PMID: 35902045 DOI: 10.1016/j.neubiorev.2022.104797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/23/2022] [Accepted: 07/24/2022] [Indexed: 10/16/2022]
Abstract
For efficient navigation, the brain needs to adequately represent the environment in a cognitive map. In this review, we sought to give an overview of literature about cognitive map formation based on non-visual modalities in persons with blindness (PWBs) and sighted persons. The review is focused on the auditory and haptic modalities, including research that combines multiple modalities and real-world navigation. Furthermore, we addressed implications of route and survey representations. Taking together, PWBs as well as sighted persons can build up cognitive maps based on non-visual modalities, although the accuracy sometime somewhat differs between PWBs and sighted persons. We provide some speculations on how to deploy information from different modalities to support cognitive map formation. Furthermore, PWBs and sighted persons seem to be able to construct route as well as survey representations. PWBs can experience difficulties building up a survey representation, but this is not always the case, and research suggests that they can acquire this ability with sufficient spatial information or training. We discuss possible explanations of these inconsistencies.
Collapse
Affiliation(s)
- Loes Ottink
- Donders Institute, Radboud University, Nijmegen, the Netherlands.
| | - Hendrik Buimer
- Donders Institute, Radboud University, Nijmegen, the Netherlands
| | - Bram van Raalte
- Donders Institute, Radboud University, Nijmegen, the Netherlands
| | - Christian F Doeller
- Psychology Department, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; Kavli Insitute for Systems Neuroscience, NTNU, Trondheim, Norway
| | - Thea M van der Geest
- Lectorate Media Design, HAN University of Applied Sciences, Arnhem, the Netherlands
| | - Richard J A van Wezel
- Donders Institute, Radboud University, Nijmegen, the Netherlands; Techmed Centre, Biomedical Signals and System, University of Twente, Enschede, the Netherlands
| |
Collapse
|
3
|
Aprile G, Cappagli G, Morelli F, Gori M, Signorini S. Standardized and Experimental Tools to Assess Spatial Cognition in Visually Impaired Children: A Mini-Review. Front Neurosci 2020; 14:562589. [PMID: 33041760 PMCID: PMC7525087 DOI: 10.3389/fnins.2020.562589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/25/2020] [Indexed: 11/13/2022] Open
Abstract
The acquisition of spatial cognition is essential for both everyday functioning (e.g., navigation) and more specific goals (e.g., mathematics), therefore being able to assess and monitor spatial cognition from the first years of life would be essential to predict developmental outcomes and timely intervene whenever spatial development is compromised. Several shreds of evidence have indicated that spatial development can be compromised in the case of development with atypical sensory experience such as blindness. Despite the massive importance of spatial abilities for the development of psychomotor competencies across childhood, only a few standardized and experimental methods have been developed to assess them in visually impaired children. In this review, we will give a short overview of current formal (standardized) and informal (experimental) methods to assess spatial cognition in visually impaired children, demonstrating that very few validated tools have been proposed to date. The main contribution of this current work is to highlight the need of ad hoc studies to create and validate clinical measures to assess spatial cognition in visually impaired individuals and address potential future developments in this area of research.
Collapse
Affiliation(s)
- Giorgia Aprile
- Centre of Child Neurophthalmology, IRCCS Mondino Foundation, Pavia, Italy
| | - Giulia Cappagli
- Centre of Child Neurophthalmology, IRCCS Mondino Foundation, Pavia, Italy
| | - Federica Morelli
- Centre of Child Neurophthalmology, IRCCS Mondino Foundation, Pavia, Italy
| | - Monica Gori
- Unit for Visually Impaired People, Istituto Italiano di Tecnologia, Genova, Italy
| | - Sabrina Signorini
- Centre of Child Neurophthalmology, IRCCS Mondino Foundation, Pavia, Italy
| |
Collapse
|
4
|
Morelli F, Aprile G, Cappagli G, Luparia A, Decortes F, Gori M, Signorini S. A Multidimensional, Multisensory and Comprehensive Rehabilitation Intervention to Improve Spatial Functioning in the Visually Impaired Child: A Community Case Study. Front Neurosci 2020; 14:768. [PMID: 32792904 PMCID: PMC7393219 DOI: 10.3389/fnins.2020.00768] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022] Open
Abstract
Congenital visual impairment may have a negative impact on spatial abilities and result in severe delays in perceptual, social, motor, and cognitive skills across life span. Despite several evidences have highlighted the need for an early introduction of re-habilitation interventions, such interventions are rarely adapted to children’s visual capabilities and very few studies have been conducted to assess their long-term efficacy. In this work, we present a case study of a visually impaired child enrolled in a newly developed re-habilitation intervention aimed at improving the overall development through the diversification of re-habilitation activities based on visual potential and developmental profile, with a focus on spatial functioning. We argue that intervention for visually impaired children should be (a) adapted to their visual capabilities, in order to increase re-habilitation outcomes, (b) multi-interdisciplinary and multidimensional, to improve adaptive abilities across development, (c) multisensory, to promote the integration of different perceptual information coming from the environment.
Collapse
Affiliation(s)
- Federica Morelli
- Center of Child Neuro-Ophthalmology, IRCCS, Mondino Foundation, Pavia, Italy
| | - Giorgia Aprile
- Center of Child Neuro-Ophthalmology, IRCCS, Mondino Foundation, Pavia, Italy
| | - Giulia Cappagli
- Center of Child Neuro-Ophthalmology, IRCCS, Mondino Foundation, Pavia, Italy
| | - Antonella Luparia
- Center of Child Neuro-Ophthalmology, IRCCS, Mondino Foundation, Pavia, Italy
| | - Francesco Decortes
- Center of Child Neuro-Ophthalmology, IRCCS, Mondino Foundation, Pavia, Italy
| | - Monica Gori
- Unit for Visually Impaired People, Istituto Italiano di Tecnologia, Genova, Italy
| | - Sabrina Signorini
- Center of Child Neuro-Ophthalmology, IRCCS, Mondino Foundation, Pavia, Italy
| |
Collapse
|
5
|
Brayda L, Leo F, Baccelliere C, Ferrari E, Vigini C. Updated Tactile Feedback with a Pin Array Matrix Helps Blind People to Reduce Self-Location Errors. MICROMACHINES 2018; 9:E351. [PMID: 30424284 PMCID: PMC6082250 DOI: 10.3390/mi9070351] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 06/28/2018] [Accepted: 07/09/2018] [Indexed: 11/16/2022]
Abstract
Autonomous navigation in novel environments still represents a challenge for people with visual impairment (VI). Pin array matrices (PAM) are an effective way to display spatial information to VI people in educative/rehabilitative contexts, as they provide high flexibility and versatility. Here, we tested the effectiveness of a PAM in VI participants in an orientation and mobility task. They haptically explored a map showing a scaled representation of a real room on the PAM. The map further included a symbol indicating a virtual target position. Then, participants entered the room and attempted to reach the target three times. While a control group only reviewed the same, unchanged map on the PAM between trials, an experimental group also received an updated map representing, in addition, the position they previously reached in the room. The experimental group significantly improved across trials by having both reduced self-location errors and reduced completion time, unlike the control group. We found that learning spatial layouts through updated tactile feedback on programmable displays outperforms conventional procedures on static tactile maps. This could represent a powerful tool for navigation, both in rehabilitation and everyday life contexts, improving spatial abilities and promoting independent living for VI people.
Collapse
Affiliation(s)
- Luca Brayda
- Research Unit of Robotics, Brain and Cognitive Sciences, Fondazione Istituto Italiano di Tecnologia, Genoa 16153, Italy.
| | - Fabrizio Leo
- Research Unit of Robotics, Brain and Cognitive Sciences, Fondazione Istituto Italiano di Tecnologia, Genoa 16153, Italy.
| | - Caterina Baccelliere
- Research Unit of Robotics, Brain and Cognitive Sciences, Fondazione Istituto Italiano di Tecnologia, Genoa 16153, Italy.
| | - Elisabetta Ferrari
- Research Unit of Robotics, Brain and Cognitive Sciences, Fondazione Istituto Italiano di Tecnologia, Genoa 16153, Italy.
| | | |
Collapse
|
6
|
Casartelli L, Federici A, Biffi E, Molteni M, Ronconi L. Are We "Motorically" Wired to Others? High-Level Motor Computations and Their Role in Autism. Neuroscientist 2017; 24:568-581. [PMID: 29271293 DOI: 10.1177/1073858417750466] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
High-level motor computations reflect abstract components far apart from the mere motor performance. Neural correlates of these computations have been explored both in nonhuman and human primates, supporting the idea that our brain recruits complex nodes for motor representations. Of note, these computations have exciting implications for social cognition, and they also entail important challenges in the context of autism. Here, we focus on these challenges benefiting from recent studies addressing motor interference, motor resonance, and high-level motor planning. In addition, we suggest new ideas about how one maps and shares the (motor) space with others. Taken together, these issues inspire intriguing and fascinating questions about the social tendency of our high-level motor computations, and this tendency may indicate that we are "motorically" wired to others. Thus, after furnishing preliminary insights on putative neural nodes involved in these computations, we focus on how the hypothesized social nature of high-level motor computations may be anomalous or limited in autism, and why this represents a critical challenge for the future.
Collapse
Affiliation(s)
- Luca Casartelli
- 1 Child Psychopathology Unit, Scientific Institute IRCCS E. Medea, Bosisio Parini, Lecco, Italy
| | - Alessandra Federici
- 1 Child Psychopathology Unit, Scientific Institute IRCCS E. Medea, Bosisio Parini, Lecco, Italy
| | - Emilia Biffi
- 2 Bioengeenering Laboratory, Scientific Institute IRCCS E. Medea, Bosisio Parini, Lecco, Italy
| | - Massimo Molteni
- 1 Child Psychopathology Unit, Scientific Institute IRCCS E. Medea, Bosisio Parini, Lecco, Italy
| | - Luca Ronconi
- 1 Child Psychopathology Unit, Scientific Institute IRCCS E. Medea, Bosisio Parini, Lecco, Italy.,3 Center for Mind/Brain Sciences (CIMeC), University of Trento, Rovereto, Trento, Italy
| |
Collapse
|
7
|
Chiesa S, Schmidt S, Tinti C, Cornoldi C. Allocentric and contra-aligned spatial representations of a town environment in blind people. Acta Psychol (Amst) 2017; 180:8-15. [PMID: 28806576 DOI: 10.1016/j.actpsy.2017.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/27/2017] [Accepted: 08/04/2017] [Indexed: 11/29/2022] Open
Abstract
Evidence concerning the representation of space by blind individuals is still unclear, as sometimes blind people behave like sighted people do, while other times they present difficulties. A better understanding of blind people's difficulties, especially with reference to the strategies used to form the representation of the environment, may help to enhance knowledge of the consequences of the absence of vision. The present study examined the representation of the locations of landmarks of a real town by using pointing tasks that entailed either allocentric points of reference with mental rotations of different degrees, or contra-aligned representations. Results showed that, in general, people met difficulties when they had to point from a different perspective to aligned landmarks or from the original perspective to contra-aligned landmarks, but this difficulty was particularly evident for the blind. The examination of the strategies adopted to perform the tasks showed that only a small group of blind participants used a survey strategy and that this group had a better performance with respect to people who adopted route or verbal strategies. Implications for the comprehension of the consequences on spatial cognition of the absence of visual experience are discussed, focusing in particular on conceivable interventions.
Collapse
Affiliation(s)
- Silvia Chiesa
- University of Turin, via Verdi 10, 10124 Turin, Italy.
| | | | - Carla Tinti
- University of Turin, via Verdi 10, 10124 Turin, Italy.
| | | |
Collapse
|
8
|
Ittyerah M. Emerging Trends in the Multimodal Nature of Cognition: Touch and Handedness. Front Psychol 2017; 8:844. [PMID: 28603509 PMCID: PMC5445134 DOI: 10.3389/fpsyg.2017.00844] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 05/09/2017] [Indexed: 01/24/2023] Open
Abstract
Advances in tactile cognition and haptics have increased our understanding of the multimodal nature of touch. Haptic data is mostly confined to human performance arising from the flexibility and dexterity of the fingers used to discriminate shapes and objects. Studies with infants indicate that recognition of objects either seen or held in the hand is possible during early periods of infancy. Evidence indicates performance differences between the hands decrease over periods of development, reflecting maturation of the cortical brain system supporting motor skills. Thus ability is not confined to the preferred hand. Tactile process and haptic cognition reflect hand ability. Studies examining manual performance must consider the relevance of haptics in research. Knowing about the evolution of the hands controlled by the cerebral hemispheres is of interest because it is a major contribution to the repertoire of human hand actions. The emergence of RDBM (role differentiated bimanual manipulation) is an important shift in the development of infant manual skills. Between 4 and 7 months of age, infants begin to manipulate objects using RDBM where one hand stabilized an object while the other hand manipulated the object. Understanding the affordance of a tool is an important cognitive milestone in early sensorimotor period that develops during the second year in full-term infants. This ability has also been demonstrated in preterm infants indicating the emergence of handedness during prenatal periods. Thus a multimodal approach that incorporates studies of tactile processes and hand actions may reveal their interactions with task demands and haptic ability.
Collapse
Affiliation(s)
- Miriam Ittyerah
- Department of Psychology, University of DelhiNew Delhi, India
| |
Collapse
|
9
|
Cavallo A, Ansuini C, Gori M, Tinti C, Tonelli A, Becchio C. Anticipatory action planning in blind and sighted individuals. Sci Rep 2017; 7:44617. [PMID: 28304373 PMCID: PMC5356336 DOI: 10.1038/srep44617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 02/10/2017] [Indexed: 11/09/2022] Open
Abstract
Several studies on visually guided reach-to-grasp movements have documented that how objects are grasped differs depending on the actions one intends to perform subsequently. However, no previous study has examined whether this differential grasping may also occur without visual input. In this study, we used motion capture technology to investigate the influence of visual feedback and prior visual experience on the modulation of kinematics by intention in sighted (in both full-vision and no-vision conditions), early-blind and late-blind participants. Results provide evidence of modulation of kinematics by intention to a similar degree under both full-vision and no-vision conditions. Moreover, they demonstrate that prior visual experience has little impact on the tailoring of grasping movements to intention. This suggests that sequential action planning does not depend on visual input, and may instead be ascribed to the function of multisensory-motor cortical network that operates and develops not only in light, but also in darkness.
Collapse
Affiliation(s)
| | - Caterina Ansuini
- Cognition, Motion and Neuroscience Unit, Fondazione Istituto Italiano di Tecnologia, Genova, Italy
| | - Monica Gori
- Unit for Visually Impaired People, Fondazione Istituto Italiano di Tecnologia, Genova, Italy
| | - Carla Tinti
- Department of Psychology, University of Turin, Italy
| | - Alessia Tonelli
- Unit for Visually Impaired People, Fondazione Istituto Italiano di Tecnologia, Genova, Italy
| | - Cristina Becchio
- Department of Psychology, University of Turin, Italy.,Cognition, Motion and Neuroscience Unit, Fondazione Istituto Italiano di Tecnologia, Genova, Italy
| |
Collapse
|
10
|
Cappagli G, Cocchi E, Gori M. Auditory and proprioceptive spatial impairments in blind children and adults. Dev Sci 2015; 20. [PMID: 26613827 DOI: 10.1111/desc.12374] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 09/04/2015] [Indexed: 11/30/2022]
Abstract
It is not clear what role visual information plays in the development of space perception. It has previously been shown that in absence of vision, both the ability to judge orientation in the haptic modality and bisect intervals in the auditory modality are severely compromised (Gori, Sandini, Martinoli & Burr, 2010; Gori, Sandini, Martinoli & Burr, 2014). Here we report for the first time also a strong deficit in proprioceptive reproduction and audio distance evaluation in early blind children and adults. Interestingly, the deficit is not present in a small group of adults with acquired visual disability. Our results support the idea that in absence of vision the audio and proprioceptive spatial representations may be delayed or drastically weakened due to the lack of visual calibration over the auditory and haptic modalities during the critical period of development.
Collapse
Affiliation(s)
- Giulia Cappagli
- Robotics, Brain and Cognitive Sciences Department, Fondazione Istituto Italiano di Tecnologia, Genoa, Italy
| | | | - Monica Gori
- Robotics, Brain and Cognitive Sciences Department, Fondazione Istituto Italiano di Tecnologia, Genoa, Italy
| |
Collapse
|
11
|
Eardley AF, Edwards G, Malouin F, Kennedy JM. Allocentric Spatial Performance Higher in Early-Blind and Sighted Adults Than in Retinopathy-of-Prematurity Adults. Perception 2015; 45:281-99. [PMID: 26562868 DOI: 10.1177/0301006615607157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The question as to whether people totally blind since infancy process allocentric or external spatial information like the sighted has caused considerable debate within the literature. Due to the extreme rarity of the population, researchers have often included individuals with retinopathy of prematurity (RoP--over oxygenation at birth) within the sample. However, RoP is inextricably confounded with prematurity per se. Prematurity, without visual disability, has been associated with spatial processing difficulties. In this experiment, blindfolded sighted participants and two groups of functionally totally blind participants heard text descriptions from a survey (allocentric) or route (egocentric) perspective. One blind group lost their sight due to RoP and a second group before 24 months of age. The accuracy of participants' mental representations derived from the text descriptions was assessed via questions and maps. The RoP participants had lower scores than the sighted and early blind, who performed similarly. In other words, it was not visual impairment alone that resulted in impaired allocentric spatial performance in this task but visual impairment together with RoP. This finding may help explain the contradictions within the existing literature on the role of vision in allocentric spatial processing.
Collapse
Affiliation(s)
| | - Geoffrey Edwards
- Centre de Recherche en Géomatique, Université Laval, Quèbec, CanadaCentre for Interdisciplinary Research in Rehabilitation & Social Integration (CIRRIS), Laval University, Quèbec, Canada
| | - Francine Malouin
- Centre for Interdisciplinary Research in Rehabilitation & Social Integration (CIRRIS), Laval University, Quèbec, Canada
| | - John M Kennedy
- Department of Psychology, University of Toronto at Scarborough, ON, Canada
| |
Collapse
|
12
|
Knoop E. Review: Hand Preference and Hand Ability: Evidence from Studies in Haptic Cognition. Perception 2014. [DOI: 10.1068/p441rev] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Espen Knoop
- Engineering Mathematics, University of Bristol
| |
Collapse
|
13
|
Interactions between gaze-centered and allocentric representations of reach target location in the presence of spatial updating. Vision Res 2010; 50:2661-70. [PMID: 20816887 DOI: 10.1016/j.visres.2010.08.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Revised: 08/16/2010] [Accepted: 08/31/2010] [Indexed: 11/22/2022]
Abstract
Numerous studies have investigated the phenomenon of egocentric spatial updating in gaze-centered coordinates, and some have studied the use of allocentric cues in visually-guided movement, but it is not known how these two mechanisms interact. Here, we tested whether gaze-centered and allocentric information combine at the time of viewing the target, or if the brain waits until the last possible moment. To do this, we took advantage of the well-known fact that pointing and reaching movements show gaze-centered 'retinal magnification' errors (RME) that update across saccades. During gaze fixation, we found that visual landmarks, and hence allocentric information, reduces RME for targets in the left visual hemifield but not in the right. When a saccade was made between viewing and reaching, this landmark-induced reduction in RME only depended on gaze at reach, not at encoding. Based on this finding, we argue that egocentric-allocentric combination occurs after the intervening saccade. This is consistent with previous findings in healthy and brain damaged subjects suggesting that the brain updates early spatial representations during eye movement and combines them at the time of action.
Collapse
|
14
|
The role of vision in egocentric and allocentric spatial frames of reference. Cogn Process 2009; 10 Suppl 2:S283-5. [DOI: 10.1007/s10339-009-0320-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
15
|
Effet de l’expérience visuelle sur l’inférence haptique d’une localisation spatiale. ANNEE PSYCHOLOGIQUE 2009. [DOI: 10.4074/s0003503309002024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
16
|
Fiehler K, Reuschel J, Rösler F. Early non-visual experience influences proprioceptive-spatial discrimination acuity in adulthood. Neuropsychologia 2009; 47:897-906. [DOI: 10.1016/j.neuropsychologia.2008.12.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2008] [Revised: 12/14/2008] [Accepted: 12/19/2008] [Indexed: 11/16/2022]
|
17
|
Kazandjian S, Dupierrix E, Gaash E, Love IY, Zivotofsky AZ, De Agostini M, Chokron S. Egocentric reference in bidirectional readers as measured by the straight-ahead pointing task. Brain Res 2008; 1247:133-41. [PMID: 18973747 DOI: 10.1016/j.brainres.2008.09.098] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Revised: 09/25/2008] [Accepted: 09/26/2008] [Indexed: 10/21/2022]
Abstract
The present study aimed to show that bidirectional reading and language exposure influence the position of egocentric reference (ER), the perceived direction of the body's sagittal axis proposed to act as an anchor for movements in extracorporeal space. Directional factors (e.g., visual scanning bias and reading habits) have been proposed to influence visuospatial performance, such as in line bisection and figure drawing. In past studies, bidirectional readers have been less consistent in demonstrating a bias compared to unidirectional readers. Using a straight-ahead pointing task to assess egocentric reference, we compared 14 unidirectional left-to-right readers (Uni-LR) to three bidirectional reading groups that differed in the reading direction of their native language and/or the level of their second language literacy: 16 low-English literate, native right-to-left, bidirectional readers (Lo-Bi-RL), 13 high-English literate, native right-to-left, bidirectional readers (Hi-Bi-RL), and 15 native left-to-right, bidirectional readers (Bi-LR). Participants were asked to point straight-ahead while blindfolded using either a left-to-right or a right-to-left scanning direction to approach the subjective sagittal midline. Uni-LRs showed left-side spatial bias when scanning left-to-right and right-side bias during right-to-left scanning, Bi-LRs and Lo-Bi-RLs (i.e., intermediate level or less in their second language) demonstrated the opposite pattern, and Hi-Bi-RLs showed left-side spatial bias regardless of scanning direction. Results are discussed in terms of accuracy and spatial bias regarding the interaction between reading direction and spatial cognition based on the level of bidirectional literacy and language exposure.
Collapse
Affiliation(s)
- Seta Kazandjian
- ERT TREAT Vision, Laboratoire de Psychologie et NeuroCognition, UMR 5105 CNRS-Université Pierre Mendès France, 1251, avenue Centrale, 38040 Grenoble, France.
| | | | | | | | | | | | | |
Collapse
|