Proactive space &amp;#x2014; A novel post stroke mobility rehabilitation tool

Linnavuo, Matti; Ковалев, О. Б.; Sepponen, Raimo

doi:10.1109/casme.2010.5706671

Cited by 4 publications

(8 citation statements)

References 16 publications

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“…S. Villarreal et al (Linnavuo, Kovalev, & Sepponen, 2010;Rimminen, Lindström, Linnavuo, & Sepponen, 2010). The Active Space includes several means of generating visual stimuli and measuring reaction times.…”

mentioning

confidence: 99%

Dual-Task in Large Perceptual Space Reveals Subclinical Hemispatial Neglect

Villarreal

Linnavuo

Sepponen

et al. 2020

J Int Neuropsychol Soc

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Objective: Both clinically observable and subclinical hemispatial neglect are related to functional disability. The aim of the present study was to examine whether increasing task complexity improves sensitivity in assessment and whether it enables the identification of subclinical neglect. Method: We developed and compared two computerized dual-tasks, a simpler and a more complex one, and presented them on a large, 173 × 277 cm screen. Participants in the study included 40 patients with unilateral stroke in either the left hemisphere (LH patient group, n = 20) or the right hemisphere (RH patient group, n = 20) and 20 healthy controls. In addition to the large-screen tasks, all participants underwent a comprehensive neuropsychological assessment. The Bells Test was used as a traditional paper-and-pencil cancellation test to assess neglect. Results: RH patients made significantly more left hemifield omission errors than controls in both large-screen tasks. LH patients’ omissions did not differ significantly from those of the controls in either large-screen task. No significant group differences were observed in the Bells Test. All groups’ reaction times were significantly slower in the more complex large-screen task compared to the simpler one. The more complex large-screen task also produced significantly slower reactions to stimuli in the left than in the right hemifield in all groups. Conclusions: The present results suggest that dual-tasks presented on a large screen sensitively reveal subclinical neglect in stroke. New, sensitive, and ecologically valid methods are needed to evaluate subclinical neglect.

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mentioning

confidence: 99%

Dual-Task in Large Perceptual Space Reveals Subclinical Hemispatial Neglect

Villarreal

Linnavuo

Sepponen

et al. 2020

J Int Neuropsychol Soc

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“…Linnavuo et al [23,24] designed a proactive space for stroke and neurological disease rehabilitation. Previous research results show that enhanced therapy for stroke recovery is associated with improvements in a patient's gait.…”

Section: Proactive Spacesmentioning

confidence: 99%

“…To motivate a recovering patient, the programs used for rehabilitation are game-like and are automatized to be used without trained personnel. The games, the user interface and the collection of data are realized in LabView-code and run on a PC with the Windows operating system [24]. Feasibility of the pilot stage of the proactive space for rehabilitation purposes will be evaluated by professionals in neuropsychology.…”

Section: Spotlightmentioning

confidence: 99%

“…Preliminary tests with healthy subjects show that the space can be used even for slow paced gaming and especially the directional speakers are found to be useful in multi-person applications. In another realization of the proactive space similar features are exploited in simulating selected smart house functions [24].…”

Section: Spotlightmentioning

confidence: 99%

“…Some of the spatial conditions-ceiling lighting and a directional speaker above the couch-are controlled automatically based on user location. The user is detected using a similar capacitive ELSI monitoring system as Linnavuo et al used [23,24]. The space occupants can use a touch screen table to adjust the illumination, the thermal IR lamps and the cooling fans above and next to the table.…”

Section: Spotlightmentioning

confidence: 99%

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Local Control of Audio Environment: A Review of Methods and Applications

2014

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The concept of a local audio environment is to have sound playback locally restricted such that, ideally, adjacent regions of an indoor or outdoor space could exhibit their own individual audio content without interfering with each other. This would enable people to listen to their content of choice without disturbing others next to them, yet, without any headphones to block conversation. In practice, perfect sound containment in free air cannot be attained, but a local audio environment can still be satisfactorily approximated using directional speakers. Directional speakers may be based on regular audible frequencies or they may employ modulated ultrasound. Planar, parabolic, and array form factors are commonly used. The directivity of a speaker improves as its surface area and sound frequency increases, making these the main design factors for directional audio systems. Even directional speakers radiate some sound outside the main beam, and sound can also reflect from objects. Therefore, directional speaker systems perform best when there is enough ambient noise to mask the leaking sound. Possible areas of application for local audio include information and advertisement audio feed in commercial facilities, guiding and narration in museums and exhibitions, office space personalization, control room messaging, rehabilitation environments, and entertainment audio systems.

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Unilateral Stroke: Computer-based Assessment Uncovers Non-Lateralized and Contralesional Visuoattentive Deficits

Villarreal

Linnavuo

Sepponen

et al. 2021

J Int Neuropsychol Soc

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Objective: Patients with unilateral stroke commonly show hemispatial neglect or milder contralesional visuoattentive deficits, but spatially non-lateralized visuoattentive deficits have also been reported. The aim of the present study was to compare spatially lateralized (i.e., contralesional) and non-lateralized (i.e., general) visuoattentive deficits in left and right hemisphere stroke patients. Method: Participants included 40 patients with chronic unilateral stroke in either the left hemisphere (LH group, n = 20) or the right hemisphere (RH group, n = 20) and 20 healthy controls. To assess the contralesional deficits, we used a traditional paper-and-pencil cancellation task (the Bells Test) and a Lateralized Targets Computer Task. To assess the non-lateralized deficits, we developed a novel large-screen (173 × 277 cm) computer method, the Ball Rain task, with moving visual stimuli and fast-paced requirements for selective attention. Results: There were no contralesional visuoattentive deficits according to the cancellation task. However, in the Lateralized Targets Computer Task, RH patients missed significantly more left-sided than right-sided targets in bilateral trials. This omission distribution differed significantly from those of the controls and LH patients. In the assessment of non-lateralized attention, RH and LH patients missed significantly more Ball Rain targets than controls in both the left and right hemifields. Conclusions: Computer-based assessment sensitively reveals various aspects of visuoattentive deficits in unilateral stroke. Patients with either right or left hemisphere stroke demonstrate non-lateralized visual inattention. In right hemisphere stroke, these symptoms can be accompanied by subtle contralesional visuoattentive deficits that have remained unnoticed in cancellation task.

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Proactive space — A novel post stroke mobility rehabilitation tool

Cited by 4 publications

References 16 publications

Dual-Task in Large Perceptual Space Reveals Subclinical Hemispatial Neglect

Dual-Task in Large Perceptual Space Reveals Subclinical Hemispatial Neglect

Local Control of Audio Environment: A Review of Methods and Applications

Unilateral Stroke: Computer-based Assessment Uncovers Non-Lateralized and Contralesional Visuoattentive Deficits

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