Delphische Wanderung; ein Zeit- und Reisebuch.

At head of title: Alfons Paquet.

Der Rhein als Schicksal : oder, Das Problem der Völker /

Mode of access: Internet.

De ontwikkeling van het klokkenspel te Gent /

Mode of access: Internet.

Beiträge zur mittelalterlichen fabelliteratur.

Caption title.

Romanische Bibliothek /

Vol. 22-24 ed. by Alfons Hilka.

Irische melodien, in den versmaassen;

Mode of access: Internet.

Der roman eines strolches, aus den hinterlassenen papieren eines arztez; eine physiologische und psychologische studie ...

Mode of access: Internet.

Der prättigäner freiheitskampf, ein bild ans der geschichte Graubündens.

Mode of access: Internet.

Uber methylierte aminotriphenylcarbinole.

Thesis (doctoral)--

Ueber die additionsfahigkeit des dimethyl-1-3-cyclohexenon-5.

Thesis (doctoral)--

Der splugen als ostschweizerische alpenbahn.

Thesis (doctoral)--

Theoretische Begründung der Notwendigkeit von Kolonien für Deutschland

von Alfons Sistig

Right hemisphere contributions to imitation tasks

Humans imitate biological movements faster than non-biological movements. The faster response has been attributed to an activation of the human mirror neuron system, which is thought to match observation and execution of actions. However, it is unclear which cortical areas are responsible for this behavioural advantage. Also, little is known about the timing of activations. Using whole-head magnetoencephalography we recorded neuronal responses to single biological finger movements and non-biological dot movements while the subjects were required to perform an imitation task or an observation task, respectively. Previous imaging studies on the human mirror neurone system suggested that activation in response to biological movements would be stronger in ventral premotor, parietal and superior temporal regions. In accordance with previous studies, reaction times to biological movements were faster than those to dot movements in all subjects. The analysis of evoked magnetic fields revealed that the reaction time benefit was paralleled by stronger and earlier activation of the left temporo-occipital cortex, right superior temporal area and right ventral motor/premotor area. The activity patterns suggest that the latter areas mediate the observed behavioural advantage of biological movements and indicate a predominant contribution of the right temporo-frontal hemisphere to action observation–execution matching processes in intransitive movements, which has not been reported previously.

Observing repetitive finger movements modulates response times of auditorily cued finger movements

Our motor and perceptual representations of actions seem to be intimately linked and the human mirror neuron system (MNS) has been proposed as the mediator. In two experiments, we presented biological or non-biological movement stimuli that were either congruent or incongruent to a required response prompted by a tone. When the tone occurred with the onset of the last movement in a series, i.e., it was perceived during the movement presentation, congruent biological stimuli resulted in faster reaction times than congruent non-biological stimuli. The opposite was observed for incongruent stimuli. When the tone was presented after visual movement stimulation, however, no such interaction was present. This implies that biological movement stimuli only affect motor behaviour during visual processing but not thereafter. These data suggest that the MNS is an “online” system; longstanding repetitive visual stimulation (Experiment 1) has no benefit in comparison to only one or two repetitions (Experiment 2).

Anticipatory control of long-range phase synchronization

Everyday human behaviour relies on our ability to predict outcomes on the basis of moment by moment information. Long-range neural phase synchronization has been hypothesized as a mechanism by which ‘predictions’ can exert an effect on the processing of incoming sensory events. Using magnetoencephalography (MEG) we have studied the relationship between the modulation of phase synchronization in a cerebral network of areas involved in visual target processing and the predictability of target occurrence. Our results reveal a striking increase in the modulation of phase synchronization associated with an increased probability of target occurrence. These observations are consistent with the hypothesis that long-range phase synchronization plays a critical functional role in humans' ability to effectively employ predictive heuristics.