The article argues in favour of a pragmatist enactive interpretation of the emergence of the symbolic and contentful mind from a basic form of social communicative interaction in which basic cognitive capacities are involved. Through a critical overview of Radical Enactivists (RECers)’ view about language, the article focuses on Mead’s pragmatist behavioural theory of meaning that refers to the gestural conversation as the origin of the evolution of linguistic conversation. The article develops as follows. After exposing the main elements of (...) REC’s theory of cognition and language that involve the construction of a theory of natural signs (teleosemiotics) and basic directionality (Ur-intentionality), some critical points of Hutto and Myin’s proposal will be highlighted. To foster a continuist perspective of language, the behavioural theory of meaning and language that Mead develops from the notion of gesture will be analysed. His theory is akin to REC and could augment the bare bones of REC’s sketched perspective, helping to include Ur-intentionality in a broader non-dualistic phylogenetic and ontogenetic theory of symbolic language from gestural communication, thus helping to overcome the distinction between a content-less intentionality and a content-involving intentionality, i.e., a semantic propositional intentionality. Furthermore, a recent revival of Mead’s theory testifies to its up-to-date relevance to explain the innate social dimension of human and non-human animals, and the human communicative capacity through the conditioning of bio-social canons and structures. (shrink)

This thesis investigates the relationship between eye movements, mental imagery and memory retrieval in four studies based on eye-tracking experiments. The first study is an investigation of eye movements during mental imagery elicited both visually and verbally. The use of complex stimuli and the development of a novel method where eye movements are recorded concurrently with verbal data enabled the above-mentioned relationship to be studied to an extent going beyond what previous research had been able to do. Eye movements were (...) found to closely reflect content and spatial layout while participants were listening to a spoken scene description, while they were describing the same scene from memory, and while they were describing a picture they had previously seen. This effect was equally strong during recall from memory irrespective of whether the scene visualised had originally been inspected visually by the participants or whether it was constructed whole-cloth from long-term memory. It was also found that eye movements "to nothing" appeared both when the participants were visualising scenes while looking at a blank screen and when they were doing so in complete darkness. The second study explored an effect frequently observed in the first study, involving a "scaling-down" during recall of participants' gaze patterns to an area smaller than that occupied by the stimulus encoded. It was found that this scaling effect correlated with spatial-imagery ability: the gaze patterns of participants with weaker spatial-imagery ability were closer in size to the encoded scene than the gaze patterns of those stronger in spatial-imagery ability. In the third study, the role of eye movements during mental imagery was investigated in four experiments where eye movements were prohibited during either the encoding phase or the recall phase. Experiments 1 and 2 showed that maintaining central fixation during visual or auditory encoding, respectively, had no effect on how eye movements were executed during recall. Thus, oculomotor events during recall are not reproductions of those produced during encoding. In Experiments 3 and 4, central fixation was instead maintained during recall. This turned out to alter and impair scene recollection, irrespective of the modality of encoding. Finally, in the fourth study, the functional role of eye movements in relation to memory retrieval was further investigated by means of direct eye-movement manipulation in the retrieval phase of an episodic-memory task. Four conditions were used: free viewing on a blank screen, maintaining central fixation, viewing within a square congruent with the location of the objects to be recalled, and viewing within a square incongruent with the location of the objects to be recalled. The results obtained show that gaze position plays an active and facilitatory role during memory retrieval. The findings from these studies are discussed in the light of current theories regarding eye movements during mental imagery and memory retrieval. (shrink)