Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloKnow Your Body Through Intrinsic Goals
Anno di pubblicazione2018
Autore/iMannella, Francesco; Santucci, Vieri G.; Somogyi, Eszter; Jacquey, Lisa; O'Regan, Kevin J.; Baldassarre, Gianluca
Affiliazioni autoriNatl Res Council CNR; Paris Descartes CPSC
Autori CNR e affiliazioni
  • inglese
AbstractThe first "object" that newborn children play with is their own body. This activity allows them to autonomously form a sensorimotor map of their own body and a repertoire of actions supporting future cognitive and motor development. Here we propose the theoretical hypothesis, operationalized as a computational model, that this acquisition of body knowledge is not guided by random motor-babbling, but rather by autonomously generated goals formed on the basis of intrinsic motivations. Motor exploration leads the agent to discover and form representations of the possible sensory events it can cause with its own actions. When the agent realizes the possibility of improving the competence to re-activate those representations, it is intrinsically motivated to select and pursue them as goals. The model is based on four components: (1) a self-organizing neural network, modulated by competence-based intrinsic motivations, that acquires abstract representations of experienced sensory (touch) changes; (2) a selector that selects the goal to pursue, and the motor resources to train to pursue it, on the basis of competence improvement; (3) an echo-state neural network that controls and learns, through goal-accomplishment and competence, the agent's motor skills; (4) a predictor of the accomplishment of the selected goals generating the competence-based intrinsic motivation signals. The model is tested as the controller of a simulated simple planar robot composed of a torso and two kinematic 3-DoF 2D arms. The robot explores its body covered by touch sensors by moving its arms. The results, which might be used to guide future empirical experiments, show how the system converges to goals and motor skills allowing it to touch the different parts of own body and how the morphology of the body affects the formed goals. The convergence is strongly dependent on competence-based intrinsic motivations affecting not only skill learning and the selection of formed goals, but also the formation of the goal representations themselves.
Lingua abstractinglese
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Pagine totali17
RivistaFrontiers in neurorobotics
Attiva dal 2007
Editore: Frontiers Research Foundation, - Lausanne
Paese di pubblicazione: Svizzera
Lingua: inglese
ISSN: 1662-5218
Titolo chiave: Frontiers in neurorobotics
Titolo proprio: Frontiers in neurorobotics
Titolo abbreviato: Front. neurorobot.
Numero volume della rivista12
Fascicolo della rivista30
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000437205300001)
Parole chiavedevelopmental robotics, developmental psychology, intrinsic motivations, goals, body
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Strutture CNR
  • ISTC — Istituto di scienze e tecnologie della cognizione
Moduli/Attività/Sottoprogetti CNR-
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Know your body through intrinsic goals
Tipo documento: application/pdf