DSpace Angular :: Browsing by Author "Cornejo, Carlos"

Browsing by Author "Cornejo, Carlos"

Now showing 1 - 14 of 14

Contrasting Vygotsky's and Bakhtin's approaches to consciousness
(SAGE PUBLICATIONS LTD, 2012) Cornejo, Carlos
Matusov (2011) sustains that Vygotsky and Bakhtin represent irreconcilable theoretical approaches. In his view, Vygotsky's model is monologic and universalist, while Bakhtin's is dialogic and pluralist. Although the two authors differ importantly, one cannot speak of irreconcilability for two main reasons. First, Vygotsky's approach is much more multifaceted and even contradictory than usually thought. In fact, his concept of sense echoes the Romanticist claim that experience exceeds the limits of language. Second, a dialogical conception of mind is not outside the reach of Hegelian tradition, which, in Matusov interpretation, is where Vygotsky's approach comes from. I emphasize that Bakhtin's unit of analysis is the voice-a concept more sociologic than psychological. "Voice" is insensitive to selfhood and should not be taken as synonymous of "person." Notwithstanding, Vygotsky and Bakhtin share beliefs with respect to the social constitution of the mind that allow including them in the same research program.
Effect of chronic exogenous oxytocin administration on exercise performance and cardiovagal control in hypobaric hypoxia in rats
(2024) Salazar-Ardiles, Camila; Cornejo, Carlos; Paz, Cristobal; Vasquez-Muñoz, Manuel; Arce-Alvarez, Alexis; Rodríguez Fernández, María; Millet, Gregoire P.; Izquierdo Redín, Mikel; Andrade, David C.
Background Outstanding exercise performance has been associated with an exacerbated vagal outflow. Nevertheless, during high-altitude hypobaric-hypoxia (HH), there is a baroreflex-dependent parasympathetic withdrawal and exercise performance deterioration. Notably, vagal control is pivotal in exercise performance, and exogenous oxytocin (OXY) administration has been shown to enhance parasympathetic drive; however, no evidence shows their role in exercise performance during HH. Then, this study aimed to examine the effect of prolonged exogenous oxytocin (OXY) administration on exercise performance during hypobaric hypoxia (HH) in rats. Results A vehicle group (n = 6) and an OXY group (n = 6) performed incremental exercise and baroreflex tests during both normobaric normoxia (NN) and HH (PO2: 100 mmHg, simulated 3,500 m) prior (pre-) and after (post-) 14 days of administration. The results showed that at pre-, there were no significant differences in exercise performance between the two groups, while at post-, the OXY group exhibited similar performance between NN and HH, while the Vehicle group maintained a significant decline in performance at HH compared to NN. At post-, the Vehicle group also demonstrated a reset in the baroreflex and a worse bradycardic response in HH, which was reversed in the OXY group, while the hypoxic ventilatory response was similar in both groups. Conclusion The findings suggest prolonged OXY administration prevents impaired exercise performance and vagal control during short-term HH.
Electrophysiological evidence of different interpretative strategies in irony comprehension
(2007) Cornejo, Carlos; Simonetti, Franco; Aldunate, Nerea; Ibanez, Agustin; Lopez, Vladimir; Melloni, Lucia
We explore the hypothesis that induction of holistic or analytic strategies influences comprehension and processing of highly contextualized expressions of ordinary language, such as irony. Twenty undergraduate students were asked to categorize as coherent or incoherent a group of sentences. Each sentence completed a previous story, so that they could be ironical, literal or nonsensical endings. Participants were asked to evaluate whether each sentence was coherent or incoherent. Half of them were initially instructed to consider whether the sentences made sense (holistic condition); the other half were instructed to consider whether the sentences were congruent or incongruent (analytic condition). Behavioral responses and Event Related Potentials were registered during the experiment. Both behavioral and electrophysiological results allow clearly distinguishing between the holistic and the analytic strategies. The fact that the same set of stimuli elicits different ERP waveforms, depending on the strategy with which they are analyzed, suggests that different cognitive processes and different areas of the brain are operating in each case.
EMPATHY AND PITCH CONVERGENCE
(UNIV CONCEPCION, FAC HUMANIDADES ARTE, 2012) Quezada, Camilo; Pablo Robledo, Juan; Roman, Domingo; Cornejo, Carlos
This study explored the relation between empathy and phonetic convergence. The working hypothesis was that empathy among two individuals translates into a synchronic process impacting on pitch values. This was studied by recording 27 dyadic interactions assigned to one of two experimental conditions (labeled as Empathic and Non-Empathic). The evolution of pitch in time was observed in some of the questions used to guide the conversations. In each conversation pitch was analyzed for both participants to determine whether phonetic convergence occurred or not. Descriptive and inferential analyses were implemented, the results being consistent with the manipulation devised to distinguish each experimental condition. The final data support the existence of a relation between some phonetic features of speech and dispositional dimensions that although typically overlooked by classical models of cognition are largely present in everyday interactions. Also data support the idea of a stronger empathy effect on mixed-gender dyads than on same-gender dyads.
ERPs and contextual semantic discrimination: Degrees of congruence in wakefulness and sleep
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006) Ibanez, Agustin; Lopez, Vladimir; Cornejo, Carlos
This study explores whether the brain can discriminate degrees of semantic congruency during wakefulness and sleep. Experiment 1 was conducted during wakefulness to test degrees of congruency by means of N400 amplitude. In Experiment 2, the same paradigm was applied to a different group of participants during natural night sleep. Stimuli were 108 sentences (definitions with two attributes) with four possible degrees of congruence as ending targets. In both studies, the amplitude of N400-like effect showed modulation according to the degree of congruency. The results indicate that the brain can accomplish sentential semantic discriminations not only in wakefulness but also in sleep. (c) 2006 Elsevier Inc. All rights reserved.
Gesture and metaphor comprehension: Electrophysiological evidence of cross-modal coordination by audiovisual stimulation
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2009) Cornejo, Carlos; Simonetti, Franco; Ibanez, Agustin; Aldunate, Nerea; Ceric, Francisco; Lopez, Vladimir; Nunez, Rafael E.
In recent years, studies have suggested that gestures influence comprehension of linguistic expressions, for example, eliciting an N400 component in response to a speech/gesture mismatch. In this paper, we investigate the role of gestural information in the understanding of metaphors. Event related potentials (ERPs) were recorded while participants viewed video clips of an actor uttering metaphorical expressions and producing bodily gestures that were congruent or incongruent with the metaphorical meaning of such expressions. This modality of stimuli presentation allows a more ecological approach to meaning integration. When ERPs were calculated using gesture stroke as time-lock event, gesture incongruity with metaphorical expression modulated the amplitude of the N400 and of the late positive complex (LPC). This suggests that gestural and speech information are combined online to make sense of the interlocutor's linguistic production in an early stage of metaphor comprehension. Our data favor the idea that meaning construction is globally integrative and highly context-sensitive. (C) 2008 Elsevier Inc. All rights reserved.
High contextual sensitivity of metaphorical expressions and gesture blending: A video event-related potential design
(ELSEVIER IRELAND LTD, 2011) Ibanez, Agustin; Toro, Pablo; Cornejo, Carlos; Hurquina, Hugo; Manes, Facundo; Weisbrod, Matthias; Schroeder, Johannes
Human communication in a natural context implies the dynamic coordination of contextual clues, paralinguistic information and literal as well as figurative language use. In the present study we constructed a paradigm with four types of video clips: literal and metaphorical expressions accompanied by congruent and incongruent gesture actions. Participants were instructed to classify the gesture accompanying the expression as congruent or incongruent by pressing two different keys while electrophysiological activity was being recorded. We compared behavioral measures and event related potential (ERP) differences triggered by the gesture stroke onset. Accuracy data showed that incongruent metaphorical expressions were more difficult to classify. Reaction times were modulated by incongruent gestures, by metaphorical expressions and by a gesture-expression interaction. No behavioral differences were found between the literal and metaphorical expressions when the gesture was congruent. N400-like and LPC-like (late positive complex) components from metaphorical expressions produced greater negativity. The N400-like modulation of metaphorical expressions showed a greater difference between congruent and incongruent categories over the left anterior region, compared with the literal expressions. More importantly, the literal congruent as well as the metaphorical congruent categories did not show any difference. Accuracy, reaction times and ERPs provide convergent support for a greater contextual sensitivity of the metaphorical expressions. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
Interpersonal coordination in three-year-old children: Functions, morphology, and temporality
(2021) Cuadros, Zamara; Carre, David; Hurtado, Esteban; Cornejo, Carlos
The temporal dimension of interpersonal macro- and micro-coordinations between young children and social partners, as well as its functions, has been well documented. However, the different morphologies that bodily micro-coordination can adopt during these interactions have received considerably less attention. This research studied the temporality and morphology of spontaneous child-adult micro-coordinations and their associated functions. For this purpose, three-year-old children (N = 35) were randomly assigned to storytelling sessions based on emotional or referential stories. Using motion capture technology, we traced rapid and spontaneous coordinations between torso movements, ranging from 0 to 1000 milliseconds. Results show that both mirror-like and anatomical coordinations spontaneously emerge in interactions between 3-year-old children and unfamiliar adults. Importantly, slightly delayed in time, mirror-like coordinations predominantly occur in emotional interactions, while zero-lag, anatomical coordinations occur in referential interactions. These results suggest that these morphologies might indeed inform different functions of coordination, as previously theorized in the literature. The evidence found could contribute to a better understanding of how interpersonal coordination shapes social interaction very early in development.
Intersubjectivity as co-phenomenology: From the holism of meaning to the being-in-the-world-with-others
(2008) Cornejo, Carlos
I outline in this paper a pragmatical approach to meaning. Meaning is defined as a phenomenologically experienced construal. As such, it is a dynamic object whose first evidence comes from the first person rather than the third one. At the same time, the approach assumes that meaning is not an individual creation, but rather an intersubjective one. Origins of meaning are also to be founded not 'in the head' of a cognitive system or subject, but in the intersubjective space contingently formed between a subject (S), an other (O) and a common object (R), which they talk about. Approaching this minimal communicative situation therefore requires realizing that the phenomenological dimension is always implied in any intersubjective encounter. The observed synchronized co-feeling among subjects, upon which language comprehension takes place, I call 'co-phenomenology'. When analyzed in this way, intersubjectivity shows at the same time its social, phenomenological and biological dimensions.
Musical improvisation enhances interpersonal coordination in subsequent conversation: Motor and speech evidence
(2021) Robledo, Juan Pablo; Hawkins, Sarah; Cornejo, Carlos; Cross, Ian; Party, Daniel; Hurtado, Esteban
This study explored the effects of musical improvisation between dyads of same-sex strangers on subsequent behavioural alignment. Participants-all non-musicians-conversed before and after either improvising music together (Musical Improvisation-MI-group) or doing a motoric non-rhythmic cooperative task (building a tower together using wooden blocks; the Hands-Busy-HB-group). Conversations were free, but initially guided by an adaptation of the Fast Friends Questionnaire for inducing talk among students who are strangers and meeting for the first time. Throughout, participants' motion was recorded with an optical motion-capture system (Mocap) and analysed in terms of speed cross-correlations. Their conversations were also recorded on separate channels using headset microphones and were analysed in terms of the periodicity displayed by rhythmic peaks in the turn transitions across question and answer pairs (Q+A pairs). Compared with their first conversations, the MI group in the second conversations showed: (a) a very rapid, partially simultaneous anatomical coordination between 0 and 0.4 s; (b) delayed mirror motoric coordination between 0.8 and 1.5 s; and (c) a higher proportion of Periodic Q+A pairs. In contrast, the HB group's motoric coordination changed slightly in timing but not in degree of coordination between the first and second conversations, and there was no significant change in the proportion of periodic Q+A pairs they produced. These results show a convergent effect of prior musical interaction on joint body movement and use of shared periodicity across speech turn-transitions in conversations, suggesting that interaction in music and speech may be mediated by common processes.
Not complex enough for complexity: Some intricacies of interpersonal synergies theory
(2022) Vial, Ivan; Cornejo, Carlos
Interpersonal coordination (IC) has become an area of growing interest in the last decades. Despite the accumulated evidence, we still do not have an encompassing explanative framework. However, a serious candidate is the interpersonal synergies theory (IST), a model part of the broader complexity approach. In the present paper, we analyze the suitability of IST as an explanation of IC. IST resolves the cognitivist theories' difficulties on IC, but it exhibits inconsistencies that diminish its impact. We argue that IST can only fit from an epistemological (not an ontological) interpretation of the notion of emergence. Secondly, IST confuses 'synergy' with 'coordination', risking mixing explanans with explanandum. Third, as a formal theory, IST obliterates the meaning dimension of human movement. Therefore, it is necessary a more in-depth description of what motor coupling among people means. We argue that attending the vitality dynamics sheds light on the shared meaning implied in coordination.
Spontaneous bodily coordination varies across affective and intellectual child-adult interactions
(2024) Cornejo, Carlos; Cuadros, Zamara; Carre, David; Hurtado, Esteban; Olivares, Himmbler
Research on child-adult interactions has identified that the morphology of bodily coordination seems to be sensitive to age and type of interaction. Mirror-like imitation emerges earlier in life and is more common during emotionally laden interactions, while anatomical imitation is acquired later and associated with cognitive tasks. However, it remains unclear whether these morphologies also vary with age and type of interaction during spontaneous coordination. Here we report a motion capture study comparing the spontaneous coordination patterns of thirty-five 3-year-old (20 girls; Mage = 3.15 years) and forty 6-year-old children (20 girls; Mage = 6.13 years) interacting with unacquainted adults during two storytelling sessions. The stories narrated the search of a character for her mother (Predominantly Affective Condition) or an object (Predominantly Intellectual Condition) inside a supermarket. Results show that children of both ages consistently coordinated their spontaneous movements towards adult storytellers, both in symmetric and asymmetric ways. However, symmetric coordination was more prominent in 3-year-old children and during predominantly emotional interactions, whereas asymmetric coordination prevailed in 6-year-old children and during predominantly intellectual interactions. These results add evidence from spontaneous interactions in favor of the hypothesis that symmetric coordination is associated with affective interactions and asymmetric coordination with intellectual ones.
The expressive dimension of interpersonal coordination and collaborative remembering
(2020) Olivares, Himmbler; Cornejo, Carlos
While individuals interact, they coordinate their feelings and emotions. They also coordinate several kinds of expression while interacting, like facial expressions and gestures. Inspired by Karl Biihler's Organon model and Henri Bergson's description of remembering experiences, we explore interpersonal coordination during a collaborative remembering task between two people. We present a case study of one dyad employing videography to identify and distinguish two types of spontaneous interpersonal coordination (expressive-affective and representational). In a later stage, separate interviews of both participants are analyzed to establish whether content, freely remembered, is related to the previously observed coordination. The data describes that expressive-affective coordination during interaction is directly linked to the subjective organization of experience in individual remembering. We discuss these results, emphasizing the intersubjective aspects of lived experience and their relationship to expressive and representational aspects of coordination and remembering.
Using 'Use': Pragmatic Consequences of the Metaphor of Culture as Resources
(SAGE PUBLICATIONS LTD, 2010) Cornejo, Carlos
In this essay I comment on the paper by Gillespie and Zittoun (2009). I argue that the metaphor of culture as a set of resources entails that there be an agent with a certain purpose, whose action converts something into an instrument. In this sense, the metaphor is cryptointentionalist. This arises from the fact that every use of a cultural resource is an action, that is, something done with intention. I also argue that being aware of this intention is part of the basic condition for understanding human action. I analyze the problems of cultural psychology in adopting intentionalist terminology, showing that this rests on the inclusion of a dyadic conception of meaning for a considerable part of the field. In contrast, the adoption of a triadic conception of meaning-e.g., C.S. Peirce's semiotics-avoids the difficulties of integrating social meaning with personal intentionality. I question Vygotsky's inherited sign/tool distinction, arguing that it poses a problem for the analysis offered by Gillespie and Zittoun. Finally, I recommend making an explicit connection between phenomenological descriptions of human action and the culture-psychological concepts concerning the internalization of cultural resources.

Browsing by Author "Cornejo, Carlos"

Results Per Page

Sort Options