Evidence map›Paper›PMID 41619057›Full record

ArticleExperimental brain research2026

Catching small balls with a power grip and large balls with a precision grip: distinct roles for the reach and grasp.

Amirhossein Mazrouei, Youssef Ekladuce, Hardeep Ryait, Majid Mohajerani, Jenni M Karl, Ian Q Whishaw

Abstract read
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In one paragraph

Article in Experimental brain research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Amirhossein MazroueiDepartment of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, 4401 University Drive West, Lethbridge, AB, T1K 3M4, Canada.
Youssef EkladuceDepartment of Psychology, Thompson Rivers University, Kamloops, Canada.
Hardeep RyaitDepartment of Kinesiology and Physical Education and Engineering, University of Lethbridge, Lethbridge, Canada.
Majid MohajeraniDepartment of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, 4401 University Drive West, Lethbridge, AB, T1K 3M4, Canada.
Jenni M KarlDepartment of Psychology, Thompson Rivers University, Kamloops, Canada.
Ian Q WhishawDepartment of Neuroscience, Canadian Centre for Behavioral Neuroscience, University of Lethbridge, 4401 University Drive West, Lethbridge, AB, T1K 3M4, Canada. Whishaw@uleth.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The dual visuomotor channel (DVC) theory proposes that reaching with a hand for an object is mediated by a reach channel that directs the hand in relation to spatial cues and a grasp channel that shapes the hand and fingers in relation to object cues. The theory derives from kinematic measures of reach and grasp movements that are used for obtaining static targets and targets rolling across a surface. Here we asked whether the theory extends to the movements used for catching. Measures from electromagnetic sensors, 3D video, and frame-by-frame video analyses were used to compare the hand movements of catching four balls (2.5 to 9 cm) to the hand movements of picking them up when static and intercepting them when they rolled across a surface. The results show that for catching, the reach features an open hand that is used to target and stop the flight of a ball. In turn, the grasp features apertures proportional to ball size, suggesting a relation to forthcoming grip organization, but not ball size per se. Grip analysis showed that a variety of finger synergies resulted in precision grips on larger balls and power grips on smaller balls. Once documented for catching, similar roles for the reach and the grasp are recognizable in the tasks of picking up static balls and intercepting balls rolling on a surface. The results are discussed with respect to their support for the DVC prediction of separate roles for visual reach and grasp channels and their integration with reach and grasp somatosensory channels.

Indexed as

HandHand StrengthPsychomotor PerformanceBiomechanical PhenomenaFemaleHumansMaleMovementDual visuomotor channel theory and catchingPower grasp for catchingPrecision grasp for catchingPrehensionTouch for graspingVisually guided reaching

Identifiers

PMID41619057

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.