S. Abuhamdeh and M. Csikszentmihalyi, The Importance of Challenge for the Enjoyment of Intrinsically Motivated, Goal-Directed Activities, Personality and Social Psychology Bulletin, vol.50, issue.4, pp.317-330, 2012.
DOI : 10.1111/1467-9280.00401

D. E. Berlyne, Conflict, Arousal, and Curiosity, 1960.
DOI : 10.1037/11164-000

M. Csikszentmihalyi, Flow and the Psychology of Discovery and Invention, 1997.

E. L. Deci, R. Koestner, R. , and R. M. , Extrinsic Rewards and Intrinsic Motivation in Education: Reconsidered Once Again, Review of Educational Research, vol.71, issue.1, pp.1-27, 2001.
DOI : 10.3102/00346543071001001

E. Düzel, N. Bunzeck, M. Guitart-masip, and S. Düzel, NOvelty-related Motivation of Anticipation and exploration by Dopamine (NOMAD): Implications for healthy aging, Neuroscience & Biobehavioral Reviews, vol.34, issue.5, pp.660-669, 2010.
DOI : 10.1016/j.neubiorev.2009.08.006

A. Efklides, Metacognition and affect: What can metacognitive experiences tell us about the learning process?, Educational Research Review, vol.1, issue.1, 2006.
DOI : 10.1016/j.edurev.2005.11.001

S. M. Fleming, R. J. Dolan, and C. D. Frith, Metacognition: computation, biology and function, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.31, issue.4, pp.1280-1286, 2012.
DOI : 10.1016/j.neubiorev.2006.12.003

S. M. Fleming, J. Huijgen, and R. J. Dolan, Prefrontal Contributions to Metacognition in Perceptual Decision Making, Journal of Neuroscience, vol.32, issue.18, pp.6117-6125, 2012.
DOI : 10.1523/JNEUROSCI.6489-11.2012

N. C. Foley, D. C. Jangraw, C. Peck, and J. Gottlieb, Novelty Enhances Visual Salience Independently of Reward in the Parietal Lobe, Journal of Neuroscience, vol.34, issue.23, pp.7947-7957, 2014.
DOI : 10.1523/JNEUROSCI.4171-13.2014

J. Gottlieb, P. Y. Oudeyer, M. Lopes, and A. Baranes, Information-seeking, curiosity, and attention: computational and neural mechanisms, Trends in Cognitive Sciences, vol.17, issue.11, 2013.
DOI : 10.1016/j.tics.2013.09.001

URL : https://hal.archives-ouvertes.fr/hal-00913646

H. Gweon, H. Pelton, J. A. Konopka, and L. E. Schulz, Sins of omission: Children selectively explore when teachers are under-informative, Cognition, vol.132, issue.3, pp.335-341, 2014.
DOI : 10.1016/j.cognition.2014.04.013

M. J. Kang, M. Hsu, I. M. Krajbich, G. Loewenstein, S. M. Mcclure et al., The Wick in the Candle of Learning: Epistemic Curiosity Activates Reward Circuitry and Enhances Memory, Psychological Science, vol.5, issue.8, pp.963-973, 2009.
DOI : 10.1111/j.1467-9280.2009.02402.x

J. Keller and H. Bless, Flow and Regulatory Compatibility: An Experimental Approach to the Flow Model of Intrinsic Motivation, Personality and Social Psychology Bulletin, vol.34, issue.2, pp.196-209, 2008.
DOI : 10.1177/0146167207310026

C. Kidd, S. T. Piantadosi, and R. N. Aslin, The Goldilocks Effect: Human Infants Allocate Attention to Visual Sequences That Are Neither Too Simple Nor Too Complex, PLoS ONE, vol.19, issue.6, 2012.
DOI : 10.1371/journal.pone.0036399.s003

W. Lee, J. Reeve, Y. Xue, and J. Xiong, Neural differences between intrinsic reasons for doing versus extrinsic reasons for doing: An fMRI study, Neuroscience Research, vol.73, issue.1, pp.68-72, 2012.
DOI : 10.1016/j.neures.2012.02.010

M. Lopes and P. Y. Oudeyer, The strategic student approach for lifelong exploration and learning, Development and Learning and Epigenetic Robotics (ICDL), 2012 IEEE International Conference on, pp.1-8, 2012.
URL : https://hal.archives-ouvertes.fr/hal-00755216

B. Maniscalco and H. Lau, A signal detection theoretic approach for estimating metacognitive sensitivity from confidence ratings, Consciousness and Cognition, vol.21, issue.1, 2012.
DOI : 10.1016/j.concog.2011.09.021

M. Mirolli and G. Baldassarre, Functions and Mechanisms of Intrinsic Motivations, Intrinsically Motivated Learning in Natural and Artificial Systems, pp.49-72, 2013.
DOI : 10.1007/978-3-642-32375-1_3

K. Murayama, M. Matsumoto, K. Izuma, and K. Matsumoto, Neural basis of the undermining effect of monetary reward on intrinsic motivation, Proceedings of the National Academy of Sciences, vol.107, issue.49, pp.20911-20916, 2010.
DOI : 10.1073/pnas.1013305107

K. Murayama, M. Matsumoto, K. Izuma, A. Sugiura, R. M. Ryan et al., How Self-Determined Choice Facilitates Performance: A Key Role of the Ventromedial Prefrontal Cortex, Cerebral Cortex, vol.25, issue.5, 2013.
DOI : 10.1093/cercor/bht317

P. Y. Oudeyer and F. Kaplan, What is intrinsic motivation? A typology of computational approaches, Frontiers in Neurorobotics, vol.1, 2007.
DOI : 10.3389/neuro.12.006.2007

P. Y. Oudeyer, F. Kaplan, and V. V. Hafner, Intrinsic Motivation Systems for Autonomous Mental Development, IEEE Transactions on Evolutionary Computation, vol.11, issue.2, pp.265-286, 2006.
DOI : 10.1109/TEVC.2006.890271

P. Oudeyer and L. Smith, How Evolution May Work Through Curiosity-Driven Developmental Process, Topics in Cognitive Science, vol.8, issue.11
DOI : 10.3389/neuro.12.006.2007

URL : https://hal.archives-ouvertes.fr/hal-01404334

R. M. Ryan and E. L. Deci, Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being., American Psychologist, vol.55, issue.1, 2000.
DOI : 10.1037/0003-066X.55.1.68

T. D. Satterthwaite, K. Ruparel, J. Loughead, M. A. Elliott, R. T. Gerraty et al., Being right is its own reward: Load and performance related ventral striatum activation to correct responses during a working memory task in youth, NeuroImage, vol.61, issue.3, pp.723-729, 2012.
DOI : 10.1016/j.neuroimage.2012.03.060

J. Schmidhuber, Developmental robotics, optimal artificial curiosity, creativity, music, and the fine arts, Connection Science, vol.1, issue.2, pp.173-187, 2006.
DOI : 10.1080/09540090600768658

N. Schouppe, J. Demanet, C. N. Boehler, K. R. Ridderinkhof, and W. Notebaert, The Role of the Striatum in Effort-Based Decision-Making in the Absence of Reward, Journal of Neuroscience, vol.34, issue.6, pp.2148-2154, 2014.
DOI : 10.1523/JNEUROSCI.1214-13.2014

L. Steels, The Autotelic Principle, Embodied Artificial Intelligence, pp.231-242, 2004.
DOI : 10.1007/978-3-540-27833-7_17

F. Taffoni, E. Tamilia, V. Focaroli, D. Formica, L. Ricci et al., Development of goal-directed action selection guided by intrinsic motivations: an experiment with children, Experimental Brain Research, vol.66, issue.5, pp.2167-2177, 2014.
DOI : 10.1007/s00221-014-3907-z

M. Ulrich, J. Keller, K. Hoenig, C. Waller, and G. Grön, Neural correlates of experimentally induced flow experiences, NeuroImage, vol.86, 2014.
DOI : 10.1016/j.neuroimage.2013.08.019