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Anticipating the magnitude of response outcomes can induce a potentiation effect for manipulable objects
Psychological Research ( IF 2.424 ) Pub Date : 2021-06-08 , DOI: 10.1007/s00426-021-01535-0
Ronan Guerineau 1 , Loïc P Heurley 1 , Nicolas Morgado 1 , Denis Brouillet 2 , Vincent Dru 1
Affiliation  

Merely seeing large objects (e.g., apples) potentiates power grip whereas seeing small objects (e.g., strawberries) potentiates precision grip. According to the embodied cognition account, this potentiation effect reflects automatic access to object representation, including the grip usually associated with the object. Alternatively, this effect might be due to an overlap between magnitude codes used to code manipulable objects and magnitude codes used to code responses outcomes. In Experiment 1, participants saw objects usually grasped with a power or precision grip and had to press keys either with their forefinger or with their palm, each response generating a low or high tone (i.e., a large vs. small perceptual outcome, respectively). Tones were automatically delivered by headphones after the responses have been made in line with the ideomotor theories according to which voluntary actions are carried out due to the anticipation of their outcomes. Consistent with the magnitude-coding hypothesis, response times were shorter when the object and the anticipated response outcome were of the same magnitude than when they were not. These results were also consistent with a between-experiment analysis. In Experiments 2 and 3, we investigated to what extent removing or switching the outcomes during the experiment influence the potentiation effect. Our results support that the potentiation effect of grasping behaviours could be due to the compatibility between magnitude codes rather than to the involvement of motor representations. Our results also suggest a spontaneous use of the magnitude of response outcomes to code responses, as well as the flexibility of this coding processes when responses outcomes are altered.



中文翻译:

预测响应结果的大小可以诱导可操作对象的增强效应

仅仅看到大物体(例如苹果)会增强抓握力,而看到小物体(例如草莓)会增强精确抓握力。根据具身认知解释,这种增强效应反映了对对象表示的自动访问,包括通常与对象相关联的抓握。或者,这种影响可能是由于用于编码可操作对象的幅度代码和用于编码响应结果的幅度代码之间的重叠。在实验 1 中,参与者看到通常用强力或精确抓握的物体,必须用食指或手掌按键,每个反应都会产生低音或高音(即,分别为大与小感知结果) . 在根据意念运动理论做出反应后,耳机会自动发出音调,根据意念运动理论,由于对结果的预期,自愿采取行动。与量级编码假设一致,当对象和预期响应结果具有相同量级时,响应时间比没有时更短。这些结果也与实验间分析一致。在实验 2 和 3 中,我们研究了在实验过程中去除或转换结果在多大程度上影响了增强效应。我们的结果支持抓取行为的增强效应可能是由于幅度代码之间的兼容性,而不是运动表征的参与。

更新日期:2021-06-08
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