Construcción de subjetividad en pandemia. Observaciones en la clínica con adolescentes / Construction of subjectivity in pandemic. Observations in the clinic with adolescents / Construction de la subjectivité en pandémie. Observations en clinique avec des adolescents / Construção da subjetividade na pandemia. Observações na clínica com adolescentes

Para pensar las adolescencias hoy, se requiere considerar que la pandemia en la que estamos todos inmersos, nos obliga a situar la construcción de la subjetividad adolescente en estos últimos años, en un acontecimiento inédito en la vida de todos. Las transformaciones que produjo la pandemia de coronavirus en la construcción de subjetividades de los que habitamos este mundo, adquieren categoría de un cambio radical, abrupto y planetario. Este trabajo revisa algunas condiciones subjetivantes como las tecno-culturas, la lógica de la simultaneidad, trauma, algunos síntomas específicos como consecuencia del encierro y la incertidumbre generalizada AU

In order to think about adolescence today, it is necessary to consider that the pandemic in which we are all immersed forces us to situate the construction of adolescent subjectivity in these last two years as an unprecedented event in everyone's life.The transformations that the coronavirus pandemic produced in the construction of subjectivities of those of us who inhabit this world, acquire the category of a radical, abrupt and planetary change. This work reviews some conditions such as techno-cultures, the logic of simultaneity, trauma and some specific symptoms as a consequence of confinement and generalized uncertainty AU

Pour penser l'adolescence aujourd'hui, il faut considérer que la pandémie laquelle nous sommes tous plongés nous oblige à situer la construction de la subjectivité adolescentde ces deux dernières années comme un événement inédit dans la vie de chacun. Les transformations que la pandémie de coronavirus a produites dans la construction des subjectivités de ceux d'entre nous qui habitent ce monde, acquièrent la catégorie d'un changement radical, brusque et planétaire. Ce travail passe en revue certaines conditions subjectivantes telles que les techno-cultures, la logique de la simultanéité, le traumatisme, certains symptômes spécifiques comme conséquence de l'enfermement et l'incertitude généralisée AU

Para pensar a adolescência hoje, é preciso considerar que a pandemia em que todos estamos imersos nos obriga a situar a construção da subjetividade adolescente nos últimos anos, em um evento sem precedentes na vida de todos. As transformações que a pandemia do coronavírus produziu na construção das subjetividades de nós que habitamos este mundo, adquirem a categoria de mudança radical, abrupta e planetária. Este trabalho revisa algumas condições subjetivantes como as tecnoculturas, a lógica da simultaneidade, o trauma, alguns sintomas específicos consequência do confinamento e da incerteza generalizada AU

Theta Oscillation Related to the Auditory Discrimination Process in Mismatch Negativity: Oddball versus Control Paradigm

BACKGROUND AND PURPOSE: The aim of this study was to identify the mechanism underlying the auditory discriminatory process reflected in mismatch negativity (MMN), using time-frequency analysis of single-trial event-related potentials (ERPs). METHODS: Two auditory tones of different probabilities (oddball paradigm) and the same probability (control paradigm) were used. The average dynamic changes in amplitude were evaluated, and the in-phase consistency of the EEG spectrum at each frequency and time window across trials, event-related spectral perturbations (ERSPs), and inter-trial phase coherence (ITC) were computed. RESULTS: Subtraction of the ERPs of standard stimuli from the ERPs of deviant stimuli revealed a clear MMN component in the oddball paradigm. However, no discernible MMN component was observed in the control paradigm. Statistical tests showed that in the oddball paradigm, deviant tones produced significant increases of theta ERSPs and ITC at around 250 ms as compared with the standard tone, while no significant difference between the two stimuli was observed in the control paradigm. CONCLUSIONS: Our results confirm that the auditory discriminatory process reflected in MMN is accompanied by phase resetting and power modulation at the theta frequency.