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Motivation(s) from control: response-effect contingency and confirmation of sensorimotor predictions reinforce different levels of selection

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Abstract

Humans and other animals live in dynamic environments. To reliably manipulate the environment and attain their goals they would benefit from a constant modification of motor-responding based on responses' current effect on the current environment. It is argued that this is exactly what is achieved by a mechanism that reinforces responses which have led to accurate sensorimotor predictions. We further show that evaluations of a response's effectiveness can occur simultaneously, driven by at least two different processes, each relying on different statistical properties of the feedback and affecting a different level of responding. Specifically, we show the continuous effect of (a) a sensorimotor process sensitive only to the conditional probability of effects given that the agent acted on the environment (i.e., action-effects) and of (b) a more abstract judgement or inference that is also sensitive to the conditional probabilities of occurrence of feedback given no action by the agent (i.e., inaction-effects). The latter process seems to guide action selection (e.g., should I act?) while the former the manner of the action's execution. This study is the first to show that different evaluation processes of a response’s effectiveness influence different levels of responding.

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Data availability

The datasets analysed during the current study are available from the corresponding author on reasonable request.

Code availability

The code used in current study is available from the corresponding author on reasonable request.

Notes

  1. A Bayes Factor greater than 3 or smaller than 0.33 is considered by convention to be the minimal conclusive ratio (See Jeffreys 1998; Kruschke and Liddell 2018); a Bayes factor of 3 means that the alternative hypothesis is three times more likely than the null hypothesis given the data (for support in the null, simply use the inverse of the Bayes factor ratio).

  2. The experiment was pre-registered on OSF (Hemed et al. 2017) and we present it with all its conditions for the sake of completion (see Supplementary materials); yet in a recently published series of experiments (Karsh et al. 2020) we rather firmly established that adding monetary value to a neutral effect a response has on the environment does not facilitate response times more than merely adding such an effect.

  3. We would like to thank Dr. Jan De-Houwer for raising this possibility.

  4. It should be noted that we previously attempted to run this experiment dissociating between tones and the result of actions and inactions (using only the two conditions where action-effects are present, manipulated between-subjects). However, due to a design flaw the results of the experiment provided mixed results (we found the predicted difference in response frequency between the two conditions and a difference in RT between the conditions). The flaw was that we used the mean RT of previous valid trials as timepoint for deeming trial as No-Response (see Experiment 2a) and as a result the participants were gradually pushed to respond faster and faster as the time window shortened with their improved performance, resulting in truncated distribution of RTs. The current design bypasses this flaw and is more like the Experiments presented in the current study.

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Acknowledgements

We would like to thank Prof. Jan De Houwer for his insights on previous versions of the manuscript. We would like to thank Rotem Ellenbogen and Shiran Sharabi (Tel-Hai College) for their help in running Experiment 1, Lilach Yona, Amier Kardosh and Rivka Aviv (University of Haifa, Israel) for their help in running experiments 2 through 4.

Funding

This research was supported by The Israel Science Foundation (ISF) grant number 339/16 and The Bi-national Science Foundation (BSF) grant number 2016/299 to B.E.

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Authors

Contributions

EH, NK and BE developed the study concept. All authors contributed to the experiments’ design. EH, BE, NK, ITM, performed data analysis. EH and BE wrote the paper; the others commented and contributed to revisions. BE Supervised the study.

Corresponding author

Correspondence to Eitan Hemed.

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Conflict of interest

The authors declared that they had no conflicts of interest with respect to their authorship or the publication of this article.

Ethical approval

The study was approved by the Ethics Committee, Department of Psychology, University of Haifa (Approval No. 425/16).

Additional information

Communicated by Melvyn A. Goodale.

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Supplementary Information

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Supplementary file1 (DOCX 5012 KB)

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Hemed, E., Karsh, N., Mark-Tavger, I. et al. Motivation(s) from control: response-effect contingency and confirmation of sensorimotor predictions reinforce different levels of selection. Exp Brain Res 240, 1471–1497 (2022). https://doi.org/10.1007/s00221-022-06345-3

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  • DOI: https://doi.org/10.1007/s00221-022-06345-3

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