•Handedness affects reaction times in a visually guided response task.•The lateralized readiness potential (LRP) reveals asymmetrical motor activation.•The LRP differs in peak amplitude between left- ...and right-handers.•Peak amplitude of the LRP is also modulated by sequence complexity.
Handedness is the most investigated form of functional hemispheric asymmetries, but its neural correlates remain unclear. Functional imaging studies suggest differences between left- and right-handers in ipsilateral activation during unilateral hand movements, but do not allow for conclusions on the temporal dimension. In the Tapley and Bryden task, subjects have to draw as many dots as possible on a paper within 20 s using either the left or the right hand. We adapted the task for use during EEG in 36 left- and 36 right-handers. Subjects performed a visually guided response task with each trial consisting of eight motor responses. We investigated the lateralized readiness potential (LRP) at the first and last response of the sequence. Overall, increasing complexity of sequences was associated with earlier and less negative LRP peaks. For the last response, right-handers showed more negative LRP peak amplitudes than left-handers. The effect of handedness on LRP peak amplitude in the first response was modulated by task complexity with a more negative LRP peak amplitude in right-handers than left-handers in simple, but not in medium or complex trials. This effect might be due to more symmetrical processing in right-handers with increasing task complexity. These findings complement previous imaging studies and add a new perspective on the relationship between laterality and schizophrenia, associated with less pronounced LRPs and a higher prevalence of left-handedness.
The polarization of the Y(1S), Y(2S) and Y(3S) mesons, produced in pp collisions at centre-of-mass energies $ \sqrt{s}=7 $ and 8 TeV, is measured using data samples collected by the LHCb experiment, ...corresponding to integrated luminosities of 1 and 2 fb$^{−1}$, respectively. The measurements are performed in three polarization frames, using Y → μμ decays in the kinematic region of the transverse momentum p$_{T}^{Υ}$ < 30 GeV/c and rapidity 2.2 < y$^{Y}$ < 4.5. No large polarization is observed.
Big Plans For German Echoes BIRNKRAUT, GESA
Billboard,
02/2001, Letnik:
113, Številka:
6
Magazine Article, Trade Publication Article
Whereas the new categories seem likely to favor up-and-coming talent, the nominations skew toward veteran acts. The Beatles, Bon Jovi, and Red Hot Chili Peppers are among those nominated for best ...international group, and Tom Jones and Carlos Santana are up for best international male artist. Westernhagen and Die Toten Hosen are named in domestic categories.
Act Aims To Help New Talent BIRNKRAUT, GESA
Billboard,
01/2000, Letnik:
112, Številka:
2
Magazine Article, Trade Publication Article
Following months of heated debate, 24 commercial radio stations in Germany have agreed to team up with the country's music industry to launch an initiative to promote new musical talent. Act 2000 is ...discussed.
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