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PubblicazioneDistinct prefrontal lateralization in placebo and reappraisal mechanisms: An ALE meta-analysis( 2025)Cognitive reappraisal is an emotional regulation strategy by which the individual changes the perspective on a situation to alter its emotional impact. Similar reinterpretation mechanisms have been associated with the placebo effect in which beliefs about the efficacy of a treatment modulate subjective experience and physiological responses. This analogy raises the hypothesis that reappraisal and placebo may share neural networks. However, despite previous efforts to identify these networks separately, there has been no recent systematic comparison using a whole-brain meta-analytic approach. To fill this gap, in the current study, we performed a coordinate-based ALE meta-analysis of task-based fMRI studies investigating reappraisal and placebo. Results show that both processes recruit the dorsolateral prefrontal cortex (DLPFC), highlighting the shared cognitive control mechanisms by which they modify the emotional response. However, reappraisal primarily engages the left portion of the DLPFC, along with the ventrolateral PFC and dorsomedial PFC, while placebo primarily engages the right portion of the DLPFC. These results show that despite common general aspects, reappraisal and placebo are different in nature and rely on different neuropsychological mechanisms. We discuss possible explanations and their implications for clinical practice and future research.
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PubblicazioneWaveform modelling for the Laser Interferometer Space Antenna( 2025)LISA, the Laser Interferometer Space Antenna, will usher in a new era in gravitational-wave astronomy. As the first anticipated space-based gravitational-wave detector, it will expand our view to the millihertz gravitational-wave sky, where a spectacular variety of interesting new sources abound: from millions of ultra-compact binaries in our Galaxy, to mergers of massive black holes at cosmological distances; from the early inspirals of stellar-mass black holes that will ultimately venture into the ground-based detectors' view to the death spiral of compact objects into massive black holes, and many sources in between. Central to realising LISA's discovery potential are waveform models, the theoretical and phenomenological predictions of the pattern of gravitational waves that these sources emit. This White Paper is presented on behalf of the Waveform Working Group for the LISA Consortium. It provides a review of the current state of waveform models for LISA sources, and describes the significant challenges that must yet be overcome.
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PubblicazioneA multilab investigation into the N2pc as an indicator of attentional selectivity: Direct replication of Eimer (1996)( 2025)The N2pc is widely employed as an electrophysiological marker of an attention allocation. This interpretation was largely driven by the observation of an N2pc elicited by an isolated relevant target object, which was reported as Experiment 2 in Eimer (1996). All subsequent refined interpretations of the N2pc had to take this crucial finding into account. Despite its central role for neurocognitive attention research, there have been no direct replications and only few conceptual replications of this seminal work. Within the context of #EEGManyLabs, an international community-driven effort to replicate the most influential EEG studies ever published, the present study was selected due to its strong impact on the study of selective attention. We revisit the idea of the N2pc being an indicator of attentional selectivity by delivering a high powered direct replication of Eimer's work through analysis of 779 datasets acquired from 22 labs across 14 countries. Our results robustly replicate the N2pc to form stimuli, but a direct replication of the N2pc to color stimuli technically failed. We believe that this pattern not only sheds further light on the functional significance of the N2pc as an electrophysiological marker of attentional selectivity, but also highlights a methodological problem with selecting analysis windows a priori. By contrast, the consistency of observed ERP patterns across labs and analysis pipelines is stunning, and this consistency is preserved even in datasets that were rejected for (ocular) artifacts, attesting to the robustness of the ERP technique and the feasibility of large-scale multilab EEG (replication) studies.
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PubblicazioneReflection and transmission amplitudes in a digital quantum simulation( 2024)In this paper we show how to measure in the setting of digital quantum simulations the reflection and transmission amplitudes of the one-dimensional scattering of a particle with a short-ranged potential. The main feature of the protocol is the coupling between the particle and an ancillary spin-1/2 degree of freedom. This allows us to reconstruct tomographically the scattering amplitudes, which are in general complex numbers, from the readout of one qubit. Applications of our results are discussed.
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PubblicazioneGrowth of Sobolev norms in quasi-integrable quantum systems( 2025)We prove an abstract result giving a ⟨t⟩E upper bound on the growth of the Sobolev norms of a time-dependent Schrödinger equation of the form iψ ̇=H0ψ+V(t)ψ. {Here} H0 is assumed to be the Hamiltonian of a steep quantum integrable system and to be a {pseudodifferential} operator of order d>1 ; V(t) is a time-dependent family of pseudodifferential operators, unbounded, but of order b