Recent studies reported converging evidence for action-effect associations if participants adopted an intention-based action control mode in free choice conditions, whereas no evidence for action-effect associations was found when participants adopted a stimulus-based mode in forced choice conditions. However, it is not yet clear whether action control modes moderate acquisition or usage of action-effect associations. In the present experiment, two groups of participants underwent an acquisition phase consisting of either free or forced choice key presses that produced irrelevant, but contingent effect tones. In a subsequent test phase, participants freely chose the key to press after former effect tones were presented. A reliable consistency effect resulted for both the groups, i.e. participants preferred the key that produced the irrelevant tone in the preceding acquisition phase. In combination with prior findings, this consistency effect suggests that usage, but not acquisition of action-effect associations depends on an intention-based action control mode.
According to ideomotor theory, voluntary actions are selected and initiated by means of anticipated action effects. Prior experiments yielded evidence for these effect anticipations with response-effect (R-E) compatibility phenomena using blocked R-E relations. Daily actions, however, typically evoke different effects depending on the situational context. In the present study, we accounted for this natural variability and investigated R-E compatibility effects by a trial-by-trial variation of R-E compatibility relations. In line with recent observations regarding ideomotor learning, R-E compatibility influenced responding only when participants responded in free choice trials assuming that participants then adopted an intention-based action control mode. In contrast, R-E compatibility had no impact when participants responded according to imperative stimuli throughout the experiment, thus when participants adopted a stimulus-based action control mode. Interestingly, once an intention-based mode was established because of free choice trials within an experimental block, we observed response compatibility effects in free as well as forced choice trials. These findings extend and refine theoretical assumptions on different action control modes in goal-directed behavior and the specific contribution of ideomotor processes to intention-based action control.
Ideomotor accounts of human action control posit that human agents represent actions in terms of their perceivable consequences; selecting, planning, and initiating a voluntary action is thus assumed to be mediated by action-effect anticipations. Corresponding empirical investigations have often employed arbitrary effects in the agent’s environment to study action-effect learning and effect-based action control. This strategy has provided accumulating evidence in support of ideomotor mechanisms, but the widespread focus on environment-related action effects has also created misperceptions of what ideomotor accounts aim to explain. Moreover, this strategy has also given rise to misunderstandings of critical epistemological limitations, especially regarding the theoretical relevance of negative results in common experimental paradigms. These recent developments call for a theoretical clarification of the concept of action effects. I propose that many misunderstandings can be resolved by embracing the theoretical role of body-related compared to environment-related actions’ effects. I show how the concept of such effects may inform current debates and how this focus can guide future research related to ideomotor action control, with a main challenge being the derivation of testable and falsifiable theories from the ideomotor framework.
Research on stimulus-response (S-R) associations as the basis of behavioral automaticity has a long history. Traditionally, it was assumed that S-R associations are formed as a consequence of the (repeated) co-occurrence of stimulus and response, that is, when participants act upon stimuli. Here, we demonstrate that S-R associations can also be established in the absence of action. In an item-specific priming paradigm, participants either classified everyday objects by performing a left or right key press (task-set execution) or they were verbally presented with information regarding an object's class and associated action while they passively viewed the object (verbal coding). Both S-R associations created by task-set execution and by verbal coding led to the later retrieval of both the stimulus-action component and the stimulus-classification component of S-R associations. Furthermore, our data indicate that both associations created by execution and by verbal coding are temporally stable and rather resilient against overwriting. The automaticity of S-R associations formed in the absence of action reveals the striking adaptability of human action control. (PsycINFO Database Record
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