A Hierarchical Attractor Network Model of perceptual versus intentional decision updates
| Autor: | Patrick Haggard, Anne Löffler, Zafeirios Fountas, Anastasia Sylaidi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Multidisciplinary Science media_common.quotation_subject Decision Subject (philosophy) General Physics and Astronomy General Chemistry Article General Biochemistry Genetics and Molecular Biology Motion (physics) Task (project management) 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Action (philosophy) Perception Human behaviour Psychology Perceptual information 030217 neurology & neurosurgery Attractor network Cognitive psychology media_common |
| Zdroj: | Nature Communications, Vol 12, Iss 1, Pp 1-17 (2021) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | Changes of Mind are a striking example of our ability to flexibly reverse decisions and change our own actions. Previous studies largely focused on Changes of Mind in decisions about perceptual information. Here we report reversals of decisions that require integrating multiple classes of information: 1) Perceptual evidence, 2) higher-order, voluntary intentions, and 3) motor costs. In an adapted version of the random-dot motion task, participants moved to a target that matched both the external (exogenous) evidence about dot-motion direction and a preceding internally-generated (endogenous) intention about which colour to paint the dots. Movement trajectories revealed whether and when participants changed their mind about the dot-motion direction, or additionally changed their mind about which colour to choose. Our results show that decision reversals about colour intentions are less frequent in participants with stronger intentions (Exp. 1) and when motor costs of intention pursuit are lower (Exp. 2). We further show that these findings can be explained by a hierarchical, multimodal Attractor Network Model that continuously integrates higher-order voluntary intentions with perceptual evidence and motor costs. Our model thus provides a unifying framework in which voluntary actions emerge from a dynamic combination of internal action tendencies and external environmental factors, each of which can be subject to Change of Mind. In this study, the authors distinguish between changes of mind about perceptual vs. intentional decisions. A Hierarchical Attractor Network Model is proposed in which human voluntary actions emerge from continuous and dynamic integration of higher-order intentions with sensory evidence and motor costs. |
| Databáze: | OpenAIRE |
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