955 research outputs found
51° Festival dei Popoli
Il Festival dei Popoli è la più antica e prestigiosa manfestazione intranazionale di documentaristica sociale ed antropologica in Italia. Al suo interno sono previste proiezioni; seminari; convegni; laboratori: ecc.Fondata nel 1959 da un gruppo di studiosi di scienze umane, antropologi, sociologi, etnologi e mass-mediologi, l'associazione senza scopo di lucro Festival dei Popoli è impegnata oltre cinquanta anni nella promozione e nello studio del cinema di documentazione sociale.L'attività dell'associazione consiste in primo luogo nell'organizzare a Firenze il principale festival internazionale del film documentario in Italia. Dal 2008 si tiene anche un'edizione annuale a New York (NYDFF - New York Documentary Fim Festival). L'Istituto ha inoltre al suo attivo una vasta rete di collaborazioni per la diffusione della cultura del documentario in Italia e all'estero. Parallelamente, il Festival dei Popoli porta avanti l'attività di conservazione e digitalizzazione del proprio archivio (che conta oltre 15.000 titoli, tra video e pellicole) ed è attivo nel campo della formazione, organizzando corsi e workshop rivolti a film-maker e aspiranti documentaristi.I convegni e le tavole rotonde, considerati parte integrante della manifestazione, hanno consentito ad esponenti di spicco dei vari rami delle scienze sociali di incontrarsi a Firenze: dall'antropologia alla sociologia, all'urbanistica, alle scienze della comunicazione, all'evoluzione del linguaggio cinematografico nel corso degli ultimi cinquanta anni
49° Festival dei Popoli
Il Festival dei Popoli è la più antica e prestigiosa manfestazione intranazionale di documentaristica sociale ed antropologica in Italia. Al suo interno sono previste proiezioni; seminari; convegni; laboratori: ecc
50° Festival dei Popoli
Il Festival dei Popoli è la più antica e prestigiosa manfestazione intranazionale di documentaristica sociale ed antropologica in Italia. Al suo interno sono previste proiezioni; seminari; convegni; laboratori: ecc
Modulation of autonomic activity in neurological conditions: Epilepsy and Tourette Syndrome
This manuscript considers the central but neglected role of the autonomic nervous system in the expression and control of seizures in epilepsy (small) and tics in Tourette Syndrome (TS). In epilepsy, consideration of autonomic involvement is typically confined to differential diagnoses (e.g., syncope), or in relation to Sudden Unexpected Death in Epilepsy (SUDEP). Investigation is more limited in Tourette Syndrome. The role of the autonomic nervous system in the generation and prevention of epileptic seizures is largely overlooked. Emotional stimuli such as anxiety and stress are potent causes of seizures and tic activity in epilepsy and TS, respectively. This manuscript will describe a possible neural mechanism by which afferent autonomic projections linked to cognition and behavior influence central thalamo-cortical regulation, which appears to be an important means for controlling both seizure and tic activity. It also summarizes the link between the integrity of the default mode network and autonomic regulation in patients with epilepsy as well as the link between impaired motor control and autonomic regulation in patients with TS. Two neurological conditions; epilepsy and TS were chosen, as seizures and tics represent parameters that can be easily measured to investigate influences of autonomic functions. The EDA biofeedback approach is anticipated to gain a strong position within the next generation of treatment for epilepsy, as a non-invasive technique with minimal side effects. This approach also takes advantage of the current practical opportunity to utilize growing digital health technology
The effect of rTMS over the inferior parietal lobule on EEG sensorimotor reactivity differs according to self-reported traits of autism in typically developing individuals
Previous research suggested that EEG markers of mirror neuron system activation may differ, in the normal population as a function of different levels of the autistic spectrum quotient; (AQ). The present study aimed at modulating the EEG sensorimotor reactivity induced by hand movement observation by means of repetitive transcranial magnetic stimulation (rTMS) applied to the inferior parietal lobule. We examined how the resulting rTMS modulation differed in relation to the self-reported autistic traits in the typically developing population. Results showed that during sham stimulation, all participants had significantly greater sensorimotor alpha reactivity (motor cortex - C electrodes) when observing hand movements compared to static hands. This sensorimotor alpha reactivity difference was reduced during active rTMS stimulation. Results also revealed that in the average AQ group at sham there was a significant increase in low beta during hand movement than static hand observation (pre-motor areas - FC electrodes) and that (like alpha over the C electrodes) this difference is abolished when active rTMS is delivered. Participants with high AQ scores showed no significant difference in low beta sensorimotor reactivity between active and sham rTMS during static hand or hand movement observation. These findings suggest that unlike sham, active rTMS over the IPL modulates the oscillatory activity of the low beta frequency of a distal area, namely the anterior sector of the sensorimotor cortex, when participants observe videos of static hand. Importantly, this modulation differs according to the degree of self-reported traits of autism in a typically developing population. © 2013 Elsevier B.V. All rights reserved
Pattern-Sensitive Epilepsy. I: A Demonstration of a Spatial Frequency Selective Epileptic Response to Gratings
Rare individuals suffer epileptic seizures when they view certain images, particularly stripes. Contrast-threshold functions (the ability to see faint stripes of various widths) were determined for two pattern-sensitive brothers, and the epileptogenicity of various patterns was assessed for one of them. Sine wave grating contrast-detection thresholds for the two subjects were essentially normal, with lowest thresholds at approximately 2 cycles/ degree (c/deg). Epileptiform discharges occurred maximally at 5 c/deg with a 1-octave 50% bandwidth. Pattern epileptogenicity was increased by the addition of a third harmonic sine wave grating to its fundamental, but was unaffected by the phase relation of the two gratings. The frequency selectivity of epileptic responsiveness was quantitatively similar to a “spatial frequency channel.” Inhibitory interactions were not present. The findings suggest relations between the phenomena of pattern-sensitive epilepsy and hypothesized spatial frequency channels which merit further exploration. RESUMEN De manera excepcional, hay personas que pueden tener ataques epilÉpticos cuando ven ciertas imÁgenes, particularmente rayas. Se determinaron los umbrales para contrastes (la capacidad de ver rayas de diversas anchuras y muy tenues) en dos hermanos sensibles a patrones y se estableciÓ la epileptogeneidad de di versos patrones en uno de ellos. Los umbrales para contrastes fueron esencialmente normales en los dos sujetos cuando se utilizeÓ una rejilla hecha con ondas sinusoidales, siendo el umbral inferior unos 2 ciclos/ grado (c/deg). Descargas epileptiformes tuvieron lugar de modo mÁximo a 5 c/deg con una amplitud de banda del 50% de una octava. la capacidad epileptogÉnica del partÓn aumentÓ cuando se aÑadiÓ una tercera sinusoide armÓnica a la rejilla base pero esa capacidad no se viÓ alterada por la relaciÓn de fase entre las dos rejillas. La selectividad de la frecuencia de la respuesta epileptogÉnica fue cuantitativamente similar al “canal de frecuencia espacial”. No se observaron interacciones inhibitorias. Los hallazgos sugieren que hay relaciones entre la epilepsyÍa secundaria a patrones visuales y los hipotÉticos canales de frecuencia espacial, lo cual merece mÁs investigaciÓn.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65270/1/j.1528-1157.1980.tb04075.x.pd
Stimulating somatosensory psychophysics: a double-blind, sham-controlled study of the neurobiological mechanisms of tDCS
In this study, the influence of tDCS on vibrotactile adaptation is investigated. Double-blind tDCS (Anodal/Sham) of 1 mA was delivered for 600 s to electrodes positioned in a somatosensory/contralateral orbit montage. Stimulation was applied between blocks of the implemented amplitude discrimination tasks. Amplitude discrimination thresholds were significantly degraded during adaptation trials, compared to those achieved at baseline but tDCS failed to modify task performance. Using Bayesian statistics, this finding was revealed to constitute substantial evidence for the null hypothesis. The failure of DC stimulation to alter performance is discussed in the context of several factors that may have confounded the induction of changes in cortical plasticity
Memòria Digital de Catalunya
Localització: Barcelona, Biblioteca de Catalunya, ms. 1096/4 (f. 105-217)Núm. 327, a la coberta ms.Data aprox. deduïda de les dates d'activitat dels autorsIndicacions escèniquesFuente de ingreso: Compra a Elisa Castells, Vda. de Joan Almirall i Forast
Investigating established EEG parameter during real-world driving
© 2018 Protzak and Gramann. In real life, behavior is influenced by dynamically changing contextual factors and is rarely limited to simple tasks and binary choices. For a meaningful interpretation of brain dynamics underlying more natural cognitive processing in active humans, ecologically valid test scenarios are essential. To understand whether brain dynamics in restricted artificial lab settings reflect the neural activity in complex natural environments, we systematically tested the auditory event-related P300 in both settings. We developed an integrative approach comprising an initial P300-study in a highly controlled laboratory set-up and a subsequent validation within a realistic driving scenario. Using a simulated dialog with a speech-based input system, increased P300 amplitudes reflected processing of infrequent and incorrect auditory feedback events in both the laboratory setting and the real world setup. Environmental noise and movement-related activity in the car driving scenario led to higher data rejection rates but revealed comparable theta and alpha frequency band pattern. Our results demonstrate the possibility to investigate cognitive functions like context updating in highly artifact prone driving scenarios and encourage the consideration of more realistic task settings in prospective brain imaging approaches
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