Influence of Prior Use of the Same or Different Effectors in a Reaching Action

Gálvez‐García, Germán; Gabaude, Catherine; Rosa, Francisco David de la; Gómez, E.

doi:10.2466/26.22.pms.118k11w9

Cited by 7 publications

(4 citation statements)

References 39 publications

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“…This is also reflected by an increased response time when alternating between different hands in bimanual serial reaction time tasks (Bhakuni and Mutha, 2015;Trapp et al, 2012). Using different limbs within one sequence adds complexity, requiring more coordination and attention to execute the movement sequence according to the movement plan (Gálvez-García et al, 2014). The increased difficulty might inhibit the linking of bimanual sequences (Kennedy et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Prior Movement of One Arm Facilitates Motor Adaptation in the Other

et al. 2023

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Many movements in daily life are embedded in motion sequences that involve more than one limb, demanding the motor system to monitor and control different body parts in quick succession. During such movements, systematic changes in the environment or the body might require motor adaptation of specific segments. However, previous motor adaptation research has focused primarily on motion sequences produced by a single limb, or on simultaneous movements of several limbs. For example, adaptation to opposing force fields is possible in unimanual reaching tasks when the direction of a prior or subsequent movement is predictive of force field direction. It is unclear, however, whether multi-limb sequences can support motor adaptation processes in a similar way. In the present study (38 females, 38 males), we investigated whether reaches can be adapted to different force fields in a bimanual motor sequence when the information about the perturbation is associated with the prior movement direction of the other arm. In addition, we examined whether prior perceptual (visual or proprioceptive) feedback of the opposite arm contributes to force field-specific motor adaptation. Our key finding is that only active participation in the bimanual sequential task supports pronounced adaptation. This result suggests that active segments in bimanual motion sequences are linked across limbs. If there is a consistent association between movement kinematics of the linked and goal movement, the learning process of the goal movement can be facilitated. More generally, if motion sequences are repeated often, prior segments can evoke specific adjustments of subsequent movements.Significance statementMovements in a limb’s motion sequence can be adjusted based on linked movements. A prerequisite is that kinematics of the linked movements correctly predict which adjustments are needed. We show that use of kinematic information to improve performance is even possible when a prior linked movement is performed with a different limb. For example, a skilled juggler might have learned how to correctly adjust his catching movement of the left hand when the right hand performed a throwing action in a specific way. Linkage is possibly a key mechanism of the human motor system for learning complex bimanual skills. Our study emphasizes that learning of specific movements should not be studied in isolation but within their motor sequence context.

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Section: Discussionmentioning

confidence: 99%

Prior Movement of One Arm Facilitates Motor Adaptation in the Other

et al. 2023

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“…Fournier et al (2014) showed that when there are several action plans at once, these action plans can interfere with each other to the extent that they share common elements. It is possible that there might be less interference if the tasks did not both involve the index finger of the dominant hand (e.g., see Gálvez-García et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…This might be expected if part of the first touch latency included an initial cost the first time any item is touched during a tracking trial (cf. Gálvez-García et al, 2014).…”

Section: Methodsmentioning

confidence: 99%

Multiple-object tracking and visually guided touch

Terry

Trick

2021

Atten Percept Psychophys

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Multiple-object tracking (MOT) involves keeping track of the positions of multiple independent target items as they move among distractors. According to Pylyshyn (Cognition, 80, 127-158, 2001), the item individuation mechanism used in MOT is also used in visually guided touch. To test this, we compared single-task MOT (MOT alone) with dual-task MOT (MOT while touching items that changed colour), looking for interference: cases where single-task performance was worse than dual-task. Touching items that changed colour interfered with MOT, but effects varied depending on whether the item touched was a target or distractor in MOT. Touching distractors always reduced MOT performance more than touching targets. Touching targets during MOT did not interfere when there was only a single target to track but interfered more once there were two or more targets. We also measured interference based on latencies to touch items that changed colour, comparing single and dual-task conditions (touch alone, touch + track). MOT interfered with touch, increasing RT to touch items that changed colour, with latencies significantly higher when those items were distractors rather than targets. Overall, there was general interference (differences between single and dual-task performance), as might be expected if coordinating the two tasks required a common limited resource such as general attention or working memory. However, there was also differential interference that varied based on whether the touched item was a target or distractor in MOT. This differential interference suggests the specific mechanisms used in MOT may also play a role in visually guided touch.

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“…But long intervals near the hands were reproduced for as long as those far from the hands. Attentional switch costs between two responding hands increase as the interval decreases (Gálvez-García, Gabaude, De la Rosa, & Gomez, 2014;Gálvez-García, Peña, Albayay, & Cohen, 2018;Garner, Tombu, & Dux, 2014), thus attentional switch between two responding hands influences temporal reproduction for a short interval more than for a long interval. In addition, previous studies showed differences between one-hand and two-hand configurations (Bush & Vecera, 2014).…”

Section: Methodsmentioning

confidence: 99%

Prolonged subjective duration near the hands: Effects of hand proximity on temporal reproduction

Wang

et al. 2019

Psychon Bull Rev

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It has been reported that human visual perception and attention are altered when the hands are nearby. Previous studies indicate that placing hands near stimuli enhances a subject's temporal sensitivity. However, few researchers have investigated the effect of hand proximity on reproducing temporal duration. Moreover, the delayed attentional disengagement and enhanced magnocellular visual processing theories provide two distinct predictions of the hand proximity effect on reproduced duration. Delayed attentional disengagement near hands will cause prolonged reproductions, whereas enhanced magnocellular visual processing predicts more accurate reproduction in the peri-hand space. The current study is the first to show that a short temporal duration is reproduced for a longer period near hands than far from hands in the dual-responding-hand condition, and this handproximity effect is attenuated in the single-responding-hand condition. These findings together with two further studies suggest that reproducing a temporal duration is modulated by hand proximity through prolonged attentional switch.

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Influence of Prior Use of the Same or Different Effectors in a Reaching Action

Cited by 7 publications

References 39 publications

Prior Movement of One Arm Facilitates Motor Adaptation in the Other

Prior Movement of One Arm Facilitates Motor Adaptation in the Other

Multiple-object tracking and visually guided touch

Prolonged subjective duration near the hands: Effects of hand proximity on temporal reproduction

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