Factors influencing planning of a familiar grasp to an object: what it is to pick a cup

Rounis, Elisabeth; Zhang, Zuo; Pizzamiglio, Gloria; Duta, Mihaela; Humphreys, Glyn W.

doi:10.1007/s00221-017-4883-x

Cited by 5 publications

(32 citation statements)

References 50 publications

(92 reference statements)

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“…To assess the interplay between the compatibility of object features and hand posture preferences during motor planning, we used a new experimental procedure. This has been described in a previous study (Rounis et al, 2017).…”

Section: Behavioral Study: Object Manipulation Tasksupporting

confidence: 60%

“…The choice of these timings was based on results from our previous study in Rounis et al (2017), in which we observed different effects of affordance and end-state comfort. The initiation times represented planning during which participants likely make a decision about which action to perform and how to implement it (Welford, 1968;Wong et al, 2015).…”

Section: Taskmentioning

confidence: 99%

“…Although previously these two factors were studied in isolation, recent investigations have looked at both combined Butz, 2011, 2015;Herbort et al, 2017;Rounis et al, 2017). Herbort and Butz (2011) and Rounis et al (2017) investigated the effect of turning a cup either with the thumb positioned toward its top (lip) or with a thumb positioned in the opposite direction. Both studies identified an 'End-state comfort' effect indicating a preference for turns that started with an inverted (or pronated) grasp to end comfortably (in a supinated) grasp.…”

Section: Introductionmentioning

confidence: 99%

“…Both studies identified an 'End-state comfort' effect indicating a preference for turns that started with an inverted (or pronated) grasp to end comfortably (in a supinated) grasp. However, this effect was mitigated by an "affordance" effect measured either in the choice of grasping the cup from its lip, even though it would result in an uncomfortable end state, for example, when the cup was upright in the Herbort and Butz (2011) study, or in mitigating the end-state comfort effect measured using response and movement times (MTs) in "afforded" actions (Rounis et al, 2017). Further studies have demonstrated the effect of affordances trumping the end-state comfort effects, suggesting that habitual actions provided by the former exert a separate influence on goal-directed planning (Herbort et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…We developed a new experimental procedure to assess the interplay between the compatibility of object features and goaldirected influence in the form of hand posture preferences at the end of the action, during motor planning using the task described in Rounis et al (2017). We varied the compatibility of the initial start posture of the hand with the physical properties of a target object and the preferred end posture for the action (whether it was comfortable or uncomfortable).…”

Section: Introductionmentioning

confidence: 99%

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Factors Influencing Manipulation of a Familiar Object in Patients With Limb Apraxia After Stroke

Pizzamiglio

Zhang

Duta

et al. 2020

Front. Hum. Neurosci.

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Previous studies have shown that hand actions to visual objects are affected both by perceptual factors and by action goals. Our aim was to study how these processes affected hand actions in chronic stroke patients, based on whether they had limb apraxia. Twenty-two left hemisphere, chronic stroke patients were measured on neuropsychological tasks of limb apraxia, which was identified in a subgroup of 10 patients. All patients underwent testing on a separate task of making simple reach and grasp actions to a cup. Their performance was compared to a group of 18 healthy age-matched volunteers. Participants were instructed to grasp the top or bottom of a cup to either lift or turn it over so as to end with a hand position that was either comfortable or uncomfortable. This task tested the influence of the compatibility of hand-cup orientation, as well as goals driven by the end-state comfort of the hand, on action selection for object manipulation. Participants' performance was measured in terms of error rates, and speed of initiation and reaching (movement time) to the object. The patients' performance was significantly delayed, and error rates increased when reaching to grasp a cup under conditions of poor compatibility and end-state comfort. The subgroup of patients with apraxia showed a decreased influence of compatibility of hand interaction with the cup, with increased error rates and delayed response times, compared to patients with no apraxia and healthy volunteers. This is despite the fact they did not display significant deficits on neuropsychological tasks of real object use. The study shows that patients with apraxia have difficulties in selecting elements of object-directed actions, pertaining to both habitual and goal-directed factors.

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Section: Behavioral Study: Object Manipulation Tasksupporting

confidence: 60%

Section: Taskmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Factors Influencing Manipulation of a Familiar Object in Patients With Limb Apraxia After Stroke

Pizzamiglio

Zhang

Duta

et al. 2020

Front. Hum. Neurosci.

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A direct effect of perception on action when grasping a cup

Rounis

Polanen

Davare

2018

Sci Rep

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Affordances represent features of an object that trigger specific actions. Here we tested whether the presence and orientation of a handle on a cup could bias grasping movements towards it in conditions where subjects were explicitly told to ignore the handle. We quantified the grip aperture profile of twelve healthy participants instructed to grasp a cup from its body while it either had no handle, a handle pointing towards, or away from the grasping hand (3 'move' conditions, with large grip aperture). To ensure the smaller grip aperture afforded by the handle was implicitly processed, we interspersed trials in which participants had to grasp the cup from its handle or a handle not attached to a cup with a small grip aperture. We found that grip aperture was smaller in the presence of a handle in the 'move' conditions, independently of its orientation. Our finding, of an effect of the handle during the execution of a grasp action, extends previous evidence of such an influence measured during motor preparation using simple reaction times. It suggests that the specific action elicited by an object's attribute can affect movement performance in a sustained manner throughout movement execution.The concept of 'affordance' was introduced by Gibson 1 to describe how features of objects (such as their physical properties) may be linked to a functional goal and the physical properties of an actor. Several behavioural studies have demonstrated that affordances modulate human movement performance, independent of the intention to act 2-10 . For example, Tucker and Ellis 2 instructed participants to make finger presses with their right or left hand in response to the orientation (up or down) of a handled object on a screen. They observed faster response times if the orientation of the handle on an object was compatible with the responding hand, reflecting the 'automatic' activation of an action to grasp the handle. Further studies have demonstrated that object features may 'automatically' trigger components of specific actions, such as reaching and grasping [3][4][5] .Nevertheless, the exact nature of affordance 'effects' remains elusive. Some authors have argued they represent spatial compatibility effects reported in other contexts [6][7][8][9] .A study by Tipper et al. 10 , described attentional effects using distractor-target combinations which demonstrated spatial-and arm-specific biases during reaching. Later studies investigating distractor-target perturbations extended this work by providing evidence of similar processes in prehension [11][12][13][14] . It is noteworthy that even though the behavioural consequences of affordances may be related to attentional mechanisms, these effects are behaviourally separable to visuospatial attention. Indeed, they are present even when the object is irrelevant to the task 2 and when visuospatial attention is directed away from the object [15][16][17] .Further work on the nature of affordance effects suggests that affordances can trigger motor representations 18,19 . Studies in...

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Neural correlates of hand-object congruency effects during action planning

Zuo

Nelissen

Zeidman

et al. 2020

Preprint

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Selecting hand actions to manipulate an object is affected both by perceptual factors and by action goals. Affordances are associated with the automatic potentiation of motor representations to an object, independent of the goal of the actor. In previous studies, we have demonstrated an influence of the congruency between hand and object orientations on response times when reaching to turn an object, such as a cup. In this study, we investigated how the representation of hand postures triggered by planning to turn a cup were influenced by this congruency effect, in an fMRI scanning environment. Healthy participants were asked to reach and turn a real cup that was placed in front of them either in an upright orientation or upside down. They were instructed to use a hand orientation that was either congruent or incongruent with the cup orientation. As expected, the motor responses were faster when the hand and cup orientations were congruent. There was increased activity in a network of brain regions involving object-directed actions during action planning, which included bilateral primary and extrastriate visual, medial and superior temporal areas, as well as superior parietal, primary motor and premotor areas in the left hemisphere. Specific activation of the dorsal premotor cortex (PMd) was associated with hand-object orientation congruency during planning, and prior to any action taking place. Activity in that area and its connectivity with the lateral occipito-temporal cortex (LOTC) increased when planning incongruent actions. The increased activity in premotor areas in trials where the orientation of the hand was incongruent to that of the object suggests a role in eliciting competing representations specified by hand postures in LOTC.

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Factors influencing planning of a familiar grasp to an object: what it is to pick a cup

Cited by 5 publications

References 50 publications

Factors Influencing Manipulation of a Familiar Object in Patients With Limb Apraxia After Stroke

Factors Influencing Manipulation of a Familiar Object in Patients With Limb Apraxia After Stroke

A direct effect of perception on action when grasping a cup

Neural correlates of hand-object congruency effects during action planning

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