Specific interference between a cognitive task and sensory organization for stance balance control in healthy young adults: Visuospatial effects

Chong, Raymond; Mills, Bradley; Dailey, Leanna; Lane, Elizabeth; Smith, Sarah; Lee, Kyoung-Hyun

doi:10.1016/j.neuropsychologia.2010.05.018

Cited by 47 publications

(59 citation statements)

References 93 publications

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“…In both support surface conditions, the speed of subtraction was reliably faster with eye closure compared to eyes open in normal lighting or total darkness. This finding is coherent with what was found previously [6] in that subtracting backwards during eye closure produced the least visuospatial interference with the balance control task.…”

Section: Specific Visuospatial Interference Effects Of Dual-taskingsupporting

confidence: 92%

“…Mental arithmetic computations such as subtracting backwards by seven [11] also activate visuospatial areas of the brain including the bilateral inferior parietal region. Performance costs were found in the first pairing of tasks [6]. The more demanding the visuospatial (balance control) conditions, the more the interference between the two tasks was observed.…”

Section: Introductionmentioning

confidence: 94%

“…It may involve the development of a more effective signal detection (selective attention) strategy [23], more efficient control of attention to plan and anticipate responses [24], and/or switching responses back and forth between the two tasks in which the execution of one task is withheld until the other task is underway [25]. These adaptations may [6,26] or may not [27] include alterations in the frequency characteristics of postural sway.…”

Section: Specific Visuospatial Interference Effects Of Dual-taskingmentioning

confidence: 99%

“…In the analyses of performance interference between two tasks, our interest lies in what is referred to as an internal structural interference [6]. By internal we mean the performance costs that arise when the same area of the brain has to deal with the simultaneous processing of the sub-components of the two tasks.…”

Section: Introductionmentioning

confidence: 99%

“…In a previous study, we paired a stance balance control task with either an arithmetic subtraction task or a word generation task [6]. Balance control is a complex visuospatial task which involves the interaction of dynamic sensorimotor processes that include biomechanical constraints, movement strategies, sensory integration, orientation in space, cognitive processing, experience and practice, and perception of goal and context [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Spatial orientation during eyes closed versus open in the dark: Are they the same?

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Section: Specific Visuospatial Interference Effects Of Dual-taskingsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 94%

Section: Specific Visuospatial Interference Effects Of Dual-taskingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dual-task practice enhances motor learning: a preliminary investigation

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Practicing a motor task under dual-task conditions can be beneficial to motor learning when the secondary task is difficult (Roche et al. in Percept Psychophys 69(4):513-522, 2007) or when it engages similar processes as the primary motor task (Hemond et al. in J Neurosci 30(2):650-654, 2010). The purpose of this pilot study was to determine which factor, difficulty level or engaged processes, of a secondary task is more critical in determining dual-task benefit. Participants practiced a discrete arm task in conjunction with an audio-vocal reaction time (RT) task. We presented two different RT tasks that differed in difficulty, simple versus choice (i.e., more difficult), at two different arm task phases that differed in engaged processes, preparation versus execution, resulting in four dual-task conditions. A simple RT task is thought to predominantly engage motor execution processes, therefore would engage similar processes as the arm movement task when it is presented during the execution phase, while a choice RT task is thought to engage planning processes and therefore would engage similar processes too when it is presented during the preparation phase. Enhanced motor learning was found in those who engaged similar process as the primary task during dual-tasking (i.e., choice RT presented during preparation and simple RT presented during execution). Moreover, those who showed enhanced learning also demonstrated high dual-task cost (poor RT task performance) during practice, indicating that both tasks were taxing the same resource pool possibly due to engaging similar cognitive processes. To further test the relation between dual-task cost and enhanced learning, we delayed the presentation timing of the choice RT task during the preparation phase and the simple RT task during the execution phase in two control experiments. Dual-task cost was reduced in these delayed timing conditions, and the enhanced learning effect was attenuated. Together, our preliminary findings suggest that it is the similarity hypothesis and not the difficulty hypothesis that mediates the enhanced motor learning under dual-task conditions.

show abstract

Specific interference between a cognitive task and sensory organization for stance balance control in healthy young adults: Visuospatial effects

Cited by 47 publications

References 93 publications

Spatial orientation during eyes closed versus open in the dark: Are they the same?

Spatial orientation during eyes closed versus open in the dark: Are they the same?

Vestibular Rehabilitation: A Patient-Centered Approach

Dual-task practice enhances motor learning: a preliminary investigation

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