Links between memory and perception: towards common mechanisms.

Summary In our daily lives, we constantly collect and integrate a large amount of sensory information (Calvert & Thesen, 2004). Throughout our perceptual activities, the knowledge we have about the environment is continuously "retrieved" into memory. The framework of embodied and situated cognition proposes that cognitive processes (i.e., mnemonic processes, language processes) are rooted in the same sensorimotor systems as those engaged in perceptual-motor processes (Glenberg, 1997 . Slotnick, 2004 . Pecher & Zwaan, 2005).Memory contains sensory-motor traces encoded during the individual's multiple experiences in his or her environment (Versace, Labeye, Badard, & Rose, 2009). Numerous works in cognitive psychology and neuroscience demonstrate that knowledge is constructed and (re)emerges from the activation of neural systems typically associated with perceptual-motor mechanisms. The content and functioning of our memory are intrinsically linked to our past and present sensory-motor activities. To be effective, the knowledge involved in our cognitive activities must be closely related to the present situation. This ability to adapt to specific situations would not be possible unless knowledge, including conceptual knowledge, is derived from the reactivation of memory traces of past experiences (Barsalou, 2008 . Versace et al., 2014). Conversely, sensory-motor activities are completely dependent on the memory traces of past sensory-motor experiences. Thus, the difference between perception and memory lies in the fact that, in the first case, properties are perceptually present, whereas, in the second case, they are absent but reactivated.The aim of this thesis was to study the links between memory and perception and, more precisely, to provide arguments in favor of the similarity between memetic and perceptual processes resulting from the activation of components of the same sensorimotor nature.We tested the hypothesis that perceptual effects should be obtainable with components reactivated in memory. To this end, we used perceptual effects - such as the masking effect or perceptual judgment biases - to explore the possibility of replicating this type of effect with the intervention of memetic dimensions.