El surgimento de uma estética urbana en la poesia hispano-americana de vanguardia

El surgimiento de una nueva estética para remitir a la ciudad a comienzos del siglo XX es indisociable de la labor emprendida por las vanguardias históricas. La apropiación de recursos poéticos provenientes del Futurismo italiano y del Cubismo francés hizo posible la representación de la ciudad moderna en la poesí­a hispanoamericana en versiones propias que pusieron de manifiesto el fecundo diálogo intertextual entre poetas a uno y otro lado del mundo. Éste trabajo esboza el camino seguido por algunos poetas y pone el énfasis en el uso innovador de la letra como elemento protagónico de la poesí­a de raigambre futurista y cubista, como recurso original que abrió el camino para una revolución visual en el espacio del poema que perimitió la recreación del espacio de la ciudad

Mood Modulates Auditory Laterality of Hemodynamic Mismatch Responses during Dichotic Listening

Hemodynamic mismatch responses can be elicited by deviant stimuli in a sequence of standard stimuli even during cognitive demanding tasks. Emotional context is known to modulate lateralized processing. Right-hemispheric negative emotion processing may bias attention to the right and enhance processing of right-ear stimuli. The present study examined the influence of induced mood on lateralized pre-attentive auditory processing of dichotic stimuli using functional magnetic resonance imaging (fMRI). Faces expressing emotions (sad/happy/neutral) were presented in a blocked design while a dichotic oddball sequence with consonant-vowel (CV) syllables in an event-related design was simultaneously administered. Twenty healthy participants were instructed to feel the emotion perceived on the images and to ignore the syllables. Deviant sounds reliably activated bilateral auditory cortices and confirmed attention effects by modulation of visual activity. Sad mood induction activated visual, limbic and right prefrontal areas. A lateralization effect of emotion-attention interaction was reflected in a stronger response to right-ear deviants in the right auditory cortex during sad mood. This imbalance of resources may be a neurophysiological correlate of laterality in sad mood and depression. Conceivably, the compensatory right-hemispheric enhancement of resources elicits increased ipsilateral processing