The Control of Sequential Aiming Movements: The Influence of Practice and Manual Asymmetries On the One-Target Advantage

Lavrysen, Ann; Helsen, Werner; Tremblay, Luc; Elliott, Digby; Adam, Jos J.; Feys, Peter; Buekers, Mart

doi:10.1016/s0010-9452(08)70111-4

Cited by 37 publications

(34 citation statements)

References 41 publications

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“…Consistent with past research conducted on TD adults (Adam et al, 2000;Helsen et al, 2001;Khan et al, 2010;Lavrysen et al, 2003), we found that increasing the number of response segments in a manual aiming movement produced an increase in the time taken to execute the first segment in a sequence. This finding was observed regardless of whether the participants were intellectually challenged (DS and UID) or non-intellectually challenged (TD).…”

Section: Discussionsupporting

confidence: 91%

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Sequential aiming movements and the one-target advantage in individuals with Down syndrome

Lawrence

Reilly

Mottram

et al. 2013

Research in Developmental Disabilities

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Research has revealed that individuals with Down syndrome (DS) have elevated reaction times, longer movement times, and greater movement errors during single-target single-limb actions compared to their typically developing (TD) peers. These perceptualmotor impairments have been attributed to both central processes and the physical phenotype associated with DS. The purpose of the present study was to directly investigate these possible central and peripheral deficits by examining how individuals with DS plan and execute more complex movements. Three groups (DS, TD, and individuals with an undifferentiated intellectual disability; UID) of 8 participants completed a single target movement, a two-target movement performed by a single arm, and a two-target movement where the first movement was performed with one arm and the second movement performed with the other arm. For all groups and all conditions, movement times revealed a one-target advantage (OTA). Specifically, times to the first target were longer in the two-target responses compared to the single-target response. In general, the OTA finding reveals that persons with DS utilise planning strategies similar to their TD peers when performing sequential actions involving two targets and two arms. Furthermore, because the OTA was observed in both the single-and two-arm two-target responses the interference in movement one associated with having to make a subsequent movement is not due to peripheral processes associated with single limb constraints. Rather, individuals with DS treat movements within a sequence as functionally dependent. Thus, the central processes associated with the timing of the implementation of the second element of the movement appear to be responsible for the interference that leads to the OTA. MOVEMENT INTEGRATION IN PERSONS WITH DOWN SYNDROME3

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Section: Discussionsupporting

confidence: 91%

“…Furthermore, research has shown the OTA to be a robust phenomenon since it occurs under both left and right hand responses (Helsen et al, 2001;Lavrysen et al, 2003), with and without vision (Lavrysen, Helsen, Elliott, & Adam, 2002), and is resistant to practice (Lavrysen et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Sequential aiming movements and the one-target advantage in individuals with Down syndrome

Lawrence

Reilly

Mottram

et al. 2013

Research in Developmental Disabilities

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“…Understanding the factors that influence the nature of the interdependency between segments has been of considerable interest to researchers (Adam et al, 2000;Cullen et al, 2001;Khan, Mottram, Adam, & Buckolz, 2010;Khan, Sarteep, Mottram, Lawrence, & Adam, 2011;Lavrysen, Helsen, Elliott, & Adam, 2002;Lavrysen et al, 2003;Lawrence, Reilly, Khan, Mottram, & Elliott, 2013;Mottram, Khan, Lawrence, Adam, & Buckolz, 2014). The aim of the present study was to differentiate between the processes underlying the integration between movement segments at central cognitive and peripheral neuromuscular levels by examining the interactive effects of switching hands and movement direction at the first target.…”

mentioning

confidence: 95%

The integration of sequential aiming movements: Switching hand and direction at the first target

et al. 2016

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“…Habilidades de apontamento com diferente número de componentes são importantes para testar essa questão, pois apresentam natureza semelhante e podem ter complexidade distinta. Um tema relacionado à complexidade da tarefa é o efeito do one-target advantage (OTA) (1,11) . O OTA é observado através da comparação do tempo de movimento de uma tarefa com apenas um componente, tarefa simples, e o primeiro componente de uma tarefa de dois ou mais componente, tarefa complexa, tendo ambos os componentes a mesma distância.…”

Section: Introductionunclassified

“…Neste caso, o último estágio do processamento, estágio da programação motora, demanda maior tempo para organizar um maior número de comandos motores. Lavrysen, Helsen, Tremblay, Elliott, Adam, Feys e Buekers (11) combinaram duas variáveis, assimetria lateral e OTA, e encontraram o efeito do OTA em movimentos de apontamento realizados em abdução, partindo da região medial do corpo para a extremidade ipsilateral. A meta da tarefa foi realizar os movimentos em direcção a uma chave (1º alvo) com maior velocidade e precisão possível.…”

Section: Introductionunclassified

Assimetrias manuais e complexidade da tarefa em habilidades de apontamento

Lage

Gallo

Miranda

et al. 2008

RPCD

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RESUMO O presente estudo investigou as assimetrias manuais em duas tarefas com níveis de complexidade distintos. Para tal, foram utilizadas duas tarefas de apontamento com diferentes núme-ros de componentes, definidas como tarefa de menor complexidade e tarefa de maior complexidade. Dez participantes destros executaram blocos de 5 tentativas de ambas as tarefas com a mão direita e a mão esquerda. Os movimentos foram filmados a uma taxa de 400 quadros/segundo. Os resultados indicaram um efeito para a complexidade da tarefa nas medidas de tempo de reacção, tempo de contacto para o 1º alvo (tempo de movimento), pico de velocidade para o 1º alvo e tempo proporcional para se atingir o pico de velocidade para o 1º alvo. Foram encontradas assimetrias manuais em ambas as tarefas para as medidas de tempo de respostas e número de correcções após o pico de velocidade para o 1º alvo. Dessa forma, não foi encontrado o efeito da complexidade sobre as assimetrias manuais em tarefas de apontamento. Os resultados são discutidos em relação à limitada generalização de prévios resultados de pesquisas comportamentais e neurofisiológicas. Palavras-chave: assimetrias manuais, complexidade da tarefa, habilidades de apontamento ABSTRACT Manual asymmetries and task complexity in aiming skillsThis study investigated the manual asymmetries in two tasks with different levels of complexity. Two aiming tasks with different number of components were used. The first one was defined as discrete task (simple task)

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The Control of Sequential Aiming Movements: The Influence of Practice and Manual Asymmetries On the One-Target Advantage

Cited by 37 publications

References 41 publications

Sequential aiming movements and the one-target advantage in individuals with Down syndrome

Sequential aiming movements and the one-target advantage in individuals with Down syndrome

The integration of sequential aiming movements: Switching hand and direction at the first target

Assimetrias manuais e complexidade da tarefa em habilidades de apontamento

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