1
|
Knights E, McIntosh RD, Ford C, Buckingham G, Rossit S. Peripheral and bimanual reaching in a stroke survivor with left visual neglect and extinction. Neuropsychologia 2024; 201:108901. [PMID: 38704116 DOI: 10.1016/j.neuropsychologia.2024.108901] [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: 07/31/2023] [Revised: 04/23/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
Whether attentional deficits are accompanied by visuomotor impairments following posterior parietal lesions has been debated for quite some time. This single-case study investigated reaching in a stroke survivor (E.B.) with left visual neglect and visual extinction following right temporo-parietal-frontal strokes. Unlike most neglect patients, E.B. did not present left hemiparesis, homonymous hemianopia nor show evidence of motor neglect or extinction allowing us to examine, for the first time, if lateralised attentional deficits co-occur with deficits in peripheral and bimanual reaching. First, we found a classic optic ataxia field effect: E.B.'s accuracy was impaired when reaching to peripheral targets in her neglected left visual field (regardless of the hand used). Second, we found a larger bimanual cost for movement time in E.B. than controls when both hands reached to incongruent locations. E.B.'s visuomotor profile is similar to the one of patients with optic ataxia showing that attentional deficits are accompanied by visuomotor deficits in the affected field.
Collapse
Affiliation(s)
- Ethan Knights
- Neuropsychology Laboratory, School of Psychology, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Robert D McIntosh
- Human Cognitive Neuroscience, Department of Psychology, The University of Edinburgh, EH8 9JZ, United Kingdom
| | - Catherine Ford
- Department of Clinical Psychology and Psychological Therapies, Norwich Medical School, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Gavin Buckingham
- Department of Sport and Health Sciences, University of Exeter, Exeter, United Kingdom
| | - Stéphanie Rossit
- Neuropsychology Laboratory, School of Psychology, University of East Anglia, Norwich, NR4 7TJ, United Kingdom.
| |
Collapse
|
2
|
Stone SA, Boser QA, Dawson TR, Vette AH, Hebert JS, Pilarski PM, Chapman CS. Generating accurate 3D gaze vectors using synchronized eye tracking and motion capture. Behav Res Methods 2024; 56:18-31. [PMID: 36085543 DOI: 10.3758/s13428-022-01958-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2022] [Indexed: 11/08/2022]
Abstract
Assessing gaze behavior during real-world tasks is difficult; dynamic bodies moving through dynamic worlds make gaze analysis difficult. Current approaches involve laborious coding of pupil positions. In settings where motion capture and mobile eye tracking are used concurrently in naturalistic tasks, it is critical that data collection be simple, efficient, and systematic. One solution is to combine eye tracking with motion capture to generate 3D gaze vectors. When combined with tracked or known object locations, 3D gaze vector generation can be automated. Here we use combined eye and motion capture and explore how linear regression models generate accurate 3D gaze vectors. We compare spatial accuracy of models derived from four short calibration routines across three pupil data inputs: the efficacy of calibration routines was assessed, a validation task requiring short fixations on task-relevant locations, and a naturalistic object interaction task to bridge the gap between laboratory and "in the wild" studies. Further, we generated and compared models using spherical and Cartesian coordinate systems and monocular (left or right) or binocular data. All calibration routines performed similarly, with the best performance (i.e., sub-centimeter errors) coming from the naturalistic task trials when the participant is looking at an object in front of them. We found that spherical coordinate systems generate the most accurate gaze vectors with no differences in accuracy when using monocular or binocular data. Overall, we recommend 1-min calibration routines using binocular pupil data combined with a spherical world coordinate system to produce the highest-quality gaze vectors.
Collapse
Affiliation(s)
- Scott A Stone
- Department of Psychology, University of Alberta, Edmonton, Alberta, Canada.
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.
| | - Quinn A Boser
- Division of Physical Medicine and Rehabilitation, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - T Riley Dawson
- Division of Physical Medicine and Rehabilitation, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Albert H Vette
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Jacqueline S Hebert
- Division of Physical Medicine and Rehabilitation, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Patrick M Pilarski
- Division of Physical Medicine and Rehabilitation, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Craig S Chapman
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
- Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, Alberta, Canada
| |
Collapse
|
3
|
Learmonth G, Benwell CSY, Märker G, Dascalu D, Checketts M, Santosh C, Barber M, Walters M, Muir KW, Harvey M. Non-invasive brain stimulation in Stroke patients (NIBS): A prospective randomized open blinded end-point (PROBE) feasibility trial using transcranial direct current stimulation (tDCS) in post-stroke hemispatial neglect. Neuropsychol Rehabil 2020; 31:1163-1189. [PMID: 32498606 PMCID: PMC8372288 DOI: 10.1080/09602011.2020.1767161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Up to 80% of people who experience a right-hemisphere stroke suffer from hemispatial neglect. This syndrome is debilitating and impedes rehabilitation. We carried out a clinical feasibility trial of transcranial direct current stimulation (tDCS) and a behavioural rehabilitation programme, alone or in combination, in patients with neglect. Patients >4 weeks post right hemisphere stroke were randomized to 10 sessions of tDCS, 10 sessions of a behavioural intervention, combined intervention, or a control task. Primary outcomes were recruitment and retention rates, with secondary outcomes effect sizes on measures of neglect and quality of life, assessed directly after the interventions, and at 6 months follow up. Of 288 confirmed stroke cases referred (representing 7% of confirmed strokes), we randomized 8% (0.6% of stroke cases overall). The largest number of exclusions (91/288 (34%)) were due to medical comorbidities that prevented patients from undergoing 10 intervention sessions. We recruited 24 patients over 29 months, with 87% completing immediate post-intervention and 67% 6 month evaluations. We established poor feasibility of a clinical trial requiring repeated hospital-based tDCS within a UK hospital healthcare setting, either with or without behavioural training, over a sustained time period. Future trials should consider intensity, duration and location of tDCS neglect interventions.Trial registration: ClinicalTrials.gov identifier: NCT02401724.
Collapse
Affiliation(s)
- Gemma Learmonth
- Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, UK.,School of Psychology, University of Glasgow, Glasgow, UK
| | - Christopher S Y Benwell
- School of Psychology, University of Glasgow, Glasgow, UK.,Division of Psychology, School of Social Sciences, University of Dundee, Dundee, UK
| | - Gesine Märker
- School of Psychology, University of Glasgow, Glasgow, UK
| | - Diana Dascalu
- School of Psychology, University of Glasgow, Glasgow, UK
| | - Matthew Checketts
- School of Psychology, University of Glasgow, Glasgow, UK.,Division of Neuroscience and Experimental Psychology, University of Manchester, Manchester, UK
| | | | - Mark Barber
- University Hospital Monklands, Lanarkshire, UK
| | - Matthew Walters
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Keith W Muir
- Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, UK
| | - Monika Harvey
- School of Psychology, University of Glasgow, Glasgow, UK
| |
Collapse
|
4
|
Balslev D, Odoj B. Distorted gaze direction input to attentional priority map in spatial neglect. Neuropsychologia 2019; 131:119-128. [PMID: 31128129 PMCID: PMC6667735 DOI: 10.1016/j.neuropsychologia.2019.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 05/13/2019] [Accepted: 05/17/2019] [Indexed: 11/30/2022]
Abstract
A contribution of the gaze signals to the attention imbalance in spatial neglect is presumed. Direct evidence however, is still lacking. Theoretical models for spatial attention posit an internal representation of locations that are selected in the competition for neural processing resources – an attentional priority map. Following up on our recent research showing an imbalance in the allocation of attention after an oculoproprioceptive perturbation in healthy volunteers, we investigated here whether the lesion in spatial neglect distorts the gaze direction input to this representation. Information about one's own direction of gaze is critical for the coordinate transformation between retinotopic and hand proprioceptive locations. To assess the gaze direction input to the attentional priority map, patients with left spatial neglect performed a cross-modal attention task in their normal, right hemispace. They discriminated visual targets whose location was cued by the patient's right index finger hidden from view. The locus of attention in response to the cue was defined as the location with the largest decrease in reaction time for visual discrimination in the presence vs. absence of the cue. In two control groups consisting of healthy elderly and patients with a right hemisphere lesion without neglect, the loci of attention were at the exact location of the cues. In contrast, neglect patients allocated attention at 0.5⁰-2⁰ rightward of the finger for all tested locations. A control task using reaching to visual targets in the absence of visual hand feedback ruled out a general error in visual localization. These findings demonstrate that in spatial neglect the gaze direction input to the attentional priority map is distorted. This observation supports the emerging view that attention and gaze are coupled and suggests that interventions that target gaze signals could alleviate spatial neglect. The mechanisms of left inattention in spatial neglect are incompletely understood. Attention loci in visual space are displaced to the right of somatosensory cues. This indicates a distorted gaze direction input to the attentional priority map. Distorted gaze direction input could lead to left-right attention imbalance.
Collapse
Affiliation(s)
- Daniela Balslev
- School of Psychology and Neuroscience, University of St Andrews, St Andrews, KY169JP, UK.
| | - Bartholomäus Odoj
- Center of Neurology, Division of Neuropsychology, Hertie Institute for Clinical Brain Research, University of Tuebingen, Tuebingen, 72076, Germany; Department of Psychology, University of Copenhagen, Copenhagen, DK, 1353, Denmark
| |
Collapse
|
5
|
|
6
|
Prism adaptation speeds reach initiation in the direction of the prism after-effect. Exp Brain Res 2017; 235:3193-3206. [DOI: 10.1007/s00221-017-5038-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 07/17/2017] [Indexed: 10/19/2022]
|
7
|
Gutierrez-Herrera M, Saevarsson S, Huber T, Hermsdörfer J, Stadler W. Repetitive TMS in right sensorimotor areas affects the selection and completion of contralateral movements. Cortex 2017; 90:46-57. [DOI: 10.1016/j.cortex.2017.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 12/21/2016] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
|
8
|
Rossit S, Benwell CSY, Szymanek L, Learmonth G, McKernan-Ward L, Corrigan E, Muir K, Reeves I, Duncan G, Birschel P, Roberts M, Livingstone K, Jackson H, Castle P, Harvey M. Efficacy of home-based visuomotor feedback training in stroke patients with chronic hemispatial neglect. Neuropsychol Rehabil 2017; 29:251-272. [DOI: 10.1080/09602011.2016.1273119] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | | | | | | | - Laura McKernan-Ward
- School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
| | | | - Keith Muir
- Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, UK
| | - Ian Reeves
- Department of Medicine for the Elderly, Southern General Hospital, Glasgow, UK
| | - George Duncan
- Department of Medicine for the Elderly, Southern General Hospital, Glasgow, UK
| | - Philip Birschel
- Department of Medicine for the Elderly, Southern General Hospital, Glasgow, UK
| | - Margaret Roberts
- Department of Medicine for the Elderly, Southern General Hospital, Glasgow, UK
| | - Katrina Livingstone
- Stroke Discharge and Rehabilitation Team, Southern General Hospital, Glasgow, UK
| | - Hazel Jackson
- Stroke Discharge and Rehabilitation Team, Southern General Hospital, Glasgow, UK
| | | | - Monika Harvey
- School of Psychology, University of Glasgow, Glasgow, UK
| |
Collapse
|
9
|
Ogourtsova T, Archambault P, Lamontagne A. Impact of post-stroke unilateral spatial neglect on goal-directed arm movements: systematic literature review. Top Stroke Rehabil 2016; 22:397-428. [DOI: 10.1179/1074935714z.0000000046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
10
|
Leigh S, Danckert J, Eliasmith C. Modelling the differential effects of prisms on perception and action in neglect. Exp Brain Res 2014; 233:751-66. [PMID: 25430546 DOI: 10.1007/s00221-014-4150-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 11/16/2014] [Indexed: 11/30/2022]
Abstract
Damage to the right parietal cortex often leads to a syndrome known as unilateral neglect in which the patient fails to attend or respond to stimuli in left space. Recent work attempting to rehabilitate the disorder has made use of rightward-shifting prisms that displace visual input further rightward. After a brief period of adaptation to prisms, many of the symptoms of neglect show improvements that can last for hours or longer, depending on the adaptation procedure. Recent work has shown, however, that differential effects of prisms can be observed on actions (which are typically improved) and perceptual biases (which often remain unchanged). Here, we present a computational model capable of explaining some basic symptoms of neglect (line bisection behaviour), the effects of prism adaptation in both healthy controls and neglect patients and the observed dissociation between action and perception following prisms. The results of our simulations support recent contentions that prisms primarily influence behaviours normally thought to be controlled by the dorsal stream.
Collapse
Affiliation(s)
- Steven Leigh
- Centre for Theoretical Neuroscience, University of Waterloo, Waterloo, ON, Canada
| | | | | |
Collapse
|
11
|
Saevarsson S, Eger S, Gutierrez-Herrera M. Neglected premotor neglect. Front Hum Neurosci 2014; 8:778. [PMID: 25360095 PMCID: PMC4197652 DOI: 10.3389/fnhum.2014.00778] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 09/13/2014] [Indexed: 11/13/2022] Open
Affiliation(s)
- Styrmir Saevarsson
- Clinical Neuropsychology Research Group (EKN), Department of Neuropsychology, Bogenhausen Academical Hospital Munich, Germany
| | - Simone Eger
- Clinical Neuropsychology Research Group (EKN), Department of Neuropsychology, Bogenhausen Academical Hospital Munich, Germany ; Department of Psychology, University of Innsbruck Innsbruck, Austria
| | - Maria Gutierrez-Herrera
- Clinical Neuropsychology Research Group (EKN), Department of Neuropsychology, Bogenhausen Academical Hospital Munich, Germany ; Department Biology II Neurobiology, Graduate School of Systemic Neurosciences, University of Munich (LMU) Munich, Germany
| |
Collapse
|
12
|
Bartolo A, Carlier M, Hassaini S, Martin Y, Coello Y. The perception of peripersonal space in right and left brain damage hemiplegic patients. Front Hum Neurosci 2014; 8:3. [PMID: 24478670 PMCID: PMC3902828 DOI: 10.3389/fnhum.2014.00003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 01/04/2014] [Indexed: 11/13/2022] Open
Abstract
Peripersonal space, as opposed to extrapersonal space, is the space that contains reachable objects and in which multisensory and sensorimotor integration is enhanced. Thus, the perception of peripersonal space requires combining information on the spatial properties of the environment with information on the current capacity to act. In support of this, recent studies have provided converging evidences that perceiving objects in peripersonal space activates a neural network overlapping with that subtending voluntary motor action and motor imagery. Other studies have also underlined the dominant role of the right hemisphere (RH) in motor planning and of the left hemisphere (LH) in on-line motor guiding, respectively. In the present study, we investigated the effect of a right or left hemiplegia in the perception of peripersonal space. 16 hemiplegic patients with brain damage to the left (LH) or right (RH) hemisphere and eight matched healthy controls performed a color discrimination, a motor imagery and a reachability judgment task. Analyses of response times and accuracy revealed no variation among the three groups in the color discrimination task, suggesting the absence of any specific perceptual or decisional deficits in the patient groups. In contrast, the patient groups revealed longer response times in the motor imagery task when performed in reference to the hemiplegic arm (RH and LH) or to the healthy arm (RH). Moreover, RH group showed longer response times in the reachability judgment task, but only for stimuli located at the boundary of peripersonal space, which was furthermore significantly reduced in size. Considered together, these results confirm the crucial role of the motor system in motor imagery task and the perception of peripersonal space. They also revealed that RH damage has a more detrimental effect on reachability estimates, suggesting that motor planning processes contribute specifically to the perception of peripersonal space.
Collapse
Affiliation(s)
- Angela Bartolo
- Laboratoire Unité de Recherche en Sciences Cognitives et Sciences Affectives, Université Lille Nord de FranceLille, France
| | - Mauraine Carlier
- Laboratoire Unité de Recherche en Sciences Cognitives et Sciences Affectives, Université Lille Nord de FranceLille, France
| | - Sabrina Hassaini
- Service de Neuropsychologie, Centre de rééducation et de réadaptations fonctionnelles spécialisées – Sainte Barbe, Fouquières les LensFrance
| | - Yves Martin
- Service de Neuropsychologie, Centre de rééducation et de réadaptations fonctionnelles spécialisées – L’Espoir, HellemmesFrance
| | - Yann Coello
- Laboratoire Unité de Recherche en Sciences Cognitives et Sciences Affectives, Université Lille Nord de FranceLille, France
| |
Collapse
|
13
|
Saevarsson S. Prism adaptation theory in unilateral neglect: motor and perceptual components. Front Hum Neurosci 2013; 7:728. [PMID: 24204338 PMCID: PMC3817368 DOI: 10.3389/fnhum.2013.00728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 10/12/2013] [Indexed: 11/30/2022] Open
Affiliation(s)
- Styrmir Saevarsson
- Clinical Neuropsychology Research Group (EKN), Bogenhausen University Hospital Munich, Germany
| |
Collapse
|
14
|
Rossit S, McAdam T, Mclean DA, Goodale MA, Culham JC. fMRI reveals a lower visual field preference for hand actions in human superior parieto-occipital cortex (SPOC) and precuneus. Cortex 2013; 49:2525-41. [DOI: 10.1016/j.cortex.2012.12.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 10/12/2012] [Accepted: 12/11/2012] [Indexed: 10/27/2022]
|
15
|
Striemer CL, Danckert J. The influence of prism adaptation on perceptual and motor components of neglect: a reply to saevarsson and kristjansson. Front Hum Neurosci 2013; 7:255. [PMID: 23761754 PMCID: PMC3672775 DOI: 10.3389/fnhum.2013.00255] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 05/21/2013] [Indexed: 11/28/2022] Open
|
16
|
Saevarsson S. Motor Response Deficits of Unilateral Neglect: Assessment, Therapy, and Neuroanatomy. APPLIED NEUROPSYCHOLOGY-ADULT 2013; 20:292-305. [DOI: 10.1080/09084282.2012.710682] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Styrmir Saevarsson
- a Clinical Neuropsychology Research Group (EKN), Bogenhausen University Hospital , Munich , Germany
| |
Collapse
|
17
|
Visuospatial neglect in action. Neuropsychologia 2012; 50:1018-28. [DOI: 10.1016/j.neuropsychologia.2011.09.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 09/09/2011] [Accepted: 09/15/2011] [Indexed: 11/18/2022]
|
18
|
Rossit S, McIntosh RD, Malhotra P, Butler SH, Muir K, Harvey M. Attention in action: Evidence from on-line corrections in left visual neglect. Neuropsychologia 2012; 50:1124-35. [DOI: 10.1016/j.neuropsychologia.2011.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 08/29/2011] [Accepted: 10/06/2011] [Indexed: 11/28/2022]
|
19
|
Aimola L, Schindler I, Simone AM, Venneri A. Near and far space neglect: Task sensitivity and anatomical substrates. Neuropsychologia 2012; 50:1115-23. [DOI: 10.1016/j.neuropsychologia.2012.01.022] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 11/30/2011] [Accepted: 01/18/2012] [Indexed: 10/14/2022]
|
20
|
Rossit S, Fraser JA, Teasell R, Malhotra PA, Goodale MA. Impaired delayed but preserved immediate grasping in a neglect patient with parieto-occipital lesions. Neuropsychologia 2011; 49:2498-504. [DOI: 10.1016/j.neuropsychologia.2011.04.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 04/20/2011] [Accepted: 04/27/2011] [Indexed: 10/18/2022]
|
21
|
Rossit S, Malhotra P, Muir K, Reeves I, Duncan G, Harvey M. The Role of Right Temporal Lobe Structures in Off-line Action: Evidence from Lesion-Behavior Mapping in Stroke Patients. Cereb Cortex 2011; 21:2751-61. [DOI: 10.1093/cercor/bhr073] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
22
|
Vossel S, Eschenbeck P, Weiss PH, Fink GR. The neural basis of perceptual bias and response bias in the Landmark task. Neuropsychologia 2010; 48:3949-54. [DOI: 10.1016/j.neuropsychologia.2010.09.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 08/18/2010] [Accepted: 09/19/2010] [Indexed: 10/19/2022]
|