53 research outputs found

    The Effect of Simple Melodic Lines on Aesthetic Experience: Brain Response to Structural Manipulations

    Get PDF
    This fMRI study investigates the effect of melody on aesthetic experience in listeners na \u308\u131ve to formal musical knowledge. Using simple melodic lines, whose syntactic structure was manipulated, we created systematic acoustic dissonance. Two stimulus categories were created: canonical (syntactically \u201ccorrect,\u201d in the Western culture) and modified (made of an altered version of the canonical melodies). The stimuli were presented under two tasks: listening and aesthetic judgment. Data were analyzed as a function of stimulus structure (canonical and modified) and stimulus aesthetics, as appraised by each participant during scanning. The critical contrast modified versus canonical stimuli produced enhanced activation of deep temporal regions, including the parahippocampus, suggesting that melody manipulation induced feelings of unpleasantness in the listeners. This was supported by our behavioral data indicating decreased aesthetic preference for the modified melodies. Medial temporal activation could also have been evoked by stimulus structural novelty determining increased memory load for the modified stimuli. The analysis of melodies judged as beautiful revealed that aesthetic judgment of simple melodies relied on a fine-structural analysis of the stimuli subserved by a left frontal activation and, possibly, on meaning attribution at the charge of right superior temporal sulcus for increasingly pleasurable stimul

    Overview of radiomics in breast cancer diagnosis and prognostication.

    Get PDF
    Diagnosis of early invasive breast cancer relies on radiology and clinical evaluation, supplemented by biopsy confirmation. At least three issues burden this approach: a) suboptimal sensitivity and suboptimal positive predictive power of radiology screening and diagnostic approaches, respectively; b) invasiveness of biopsy with discomfort for women undergoing diagnostic tests; c) long turnaround time for recall tests. In the screening setting, radiology sensitivity is suboptimal, and when a suspicious lesion is detected and a biopsy is recommended, the positive predictive value of radiology is modest. Recent technological advances in medical imaging, especially in the field of artificial intelligence applied to image analysis, hold promise in addressing clinical challenges in cancer detection, assessment of treatment response, and monitoring disease progression. Radiomics include feature extraction from clinical images; these features are related to tumor size, shape, intensity, and texture, collectively providing comprehensive tumor characterization, the so-called radiomics signature of the tumor. Radiomics is based on the hypothesis that extracted quantitative data derives from mechanisms occurring at genetic and molecular levels. In this article we focus on the role and potential of radiomics in breast cancer diagnosis and prognostication

    Workload measurement for molecular genetics laboratory: A survey study

    Get PDF
    Genetic testing availability in the health care system is rapidly increasing, along with the diffusion of next-generation sequencing (NGS) into diagnostics. These issues make imperative the knowledge-drive optimization of testing in the clinical setting. Time estimations of wet laboratory procedure in Italian molecular laboratories offering genetic diagnosis were evaluated to provide data suitable to adjust efficiency and optimize health policies and costs. A survey was undertaken by the Italian Society of Human Genetics (SIGU). Forty-two laboratories participated. For most molecular techniques, the most time-consuming steps are those requiring an intensive manual intervention or in which the human bias can affect the global process time-performances. For NGS, for which the study surveyed also the interpretation time, the latter represented the step that requiring longer times. We report the first survey describing the hands-on times requested for different molecular diagnostics procedures, including NGS. The analysis of this survey suggests the need of some improvements to optimize some analytical processes, such as the implementation of laboratory information management systems to minimize manual procedures in pre-analytical steps which may affect accuracy that represents the major challenge to be faced in the future setting of molecular genetics laboratory

    miRNA-mRNA integrative analysis in primary myelofibrosis CD34+ cells: role of miR-155/JARID2 axis in abnormal megakaryopoiesis

    Get PDF
    Primary myelofibrosis (PMF) is a myeloproliferative neoplasm characterized by megakaryocyte (MK) hyperplasia, bone marrow fibrosis, and abnormal stem cell trafficking. PMF may be associated with somatic mutations in JAK2, MPL, or CALR. Previous studies have shown that abnormal MKs play a central role in the pathophysiology of PMF. In this work, we studied both gene and microRNA (miRNA) expression profiles in CD34(+) cells from PMF patients. We identified several biomarkers and putative molecular targets such as FGR, LCN2, and OLFM4. By means of miRNA-gene expression integrative analysis, we found different regulatory networks involved in the dysregulation of transcriptional control and chromatin remodeling. In particular, we identified a network gathering several miRNAs with oncogenic potential (eg, miR-155-5p) and targeted genes whose abnormal function has been previously associated with myeloid neoplasms, including JARID2, NR4A3, CDC42, and HMGB3. Because the validation of miRNA-target interactions unveiled JARID2/miR-155-5p as the strongest relationship in the network, we studied the function of this axis in normal and PMF CD34(+) cells. We showed that JARID2 downregulation mediated by miR-155-5p overexpression leads to increased in vitro formation of CD41(+) MK precursors. These findings suggest that overexpression of miR-155-5p and the resulting downregulation of JARID2 may contribute to MK hyperplasia in PMF

    Prognostic Relevance of Multi-Antigenic Myeloma-Specific T-Cell Assay in Patients with Monoclonal Gammopathies

    Get PDF
    : Multiple Myeloma (MM) typically originates from underlying precursor conditions, known as Monoclonal Gammopathy of Undetermined Significance (MGUS) and Smoldering Multiple Myeloma (SMM). Validated risk factors, related to the main features of the clonal plasma cells, are employed in the current prognostic models to assess long-term probabilities of progression to MM. In addition, new prognostic immunologic parameters, measuring protective MM-specific T-cell responses, could help to identify patients with shorter time-to-progression. In this report, we described a novel Multi-antigenic Myeloma-specific (MaMs) T-cell assay, based on ELISpot technology, providing simultaneous evaluation of T-cell responses towards ten different MM-associated antigens. When performed during long-term follow-up (mean 28 months) of 33 patients with either MGUS or SMM, such deca-antigenic myeloma-specific immunoassay allowed to significantly distinguish between stable vs. progressive disease (p < 0.001), independently from the Mayo Clinic risk category. Here, we report the first clinical experience showing that a wide (multi-antigen), standardized (irrespective to patients' HLA), MM-specific T-cell assay may routinely be applied, as a promising prognostic tool, during the follow-up of MGUS/SMM patients. Larger studies are needed to improve the antigenic panel and further explore the prognostic value of MaMs test in the risk assessment of patients with monoclonal gammopathies

    Introduzione

    No full text
    Uno dei dibattiti che hanno dominato la filosofia della mente a partire dagli anni Ottanta del secolo scorso riguarda la natura della psicologia ingenua, ossia la capacità – caratteristica degli esseri umani – di interpretare il proprio comportamento e quello altrui sulla base dell’attribuzione di stati mentali quali credenze, desideri ed emozioni. Così, io posso spiegare i fiori ricevuti dicendo che la persona che li ha mandati desiderava scusarsi con me, o posso spiegare il fatto di essere ..

    Strade Parallele

    No full text
    Estetica Razionale played a crucial role in the debate about the nature of this discipline. To go back to understanding aesthetics as a theory of perception, rather than as philosophy of art, basically means to deal with a triad of capabilities which are strongly connected to one another: not only perception stricto sensu, but also memory and imagination - faculties without which perception would not offer any possibility of reasoning. In fact, it is only thanks to memory that it is possible to believe what is perceived, and only thanks to imagination that it is possible to compare, distinguish and subsume, even before inventing. If the "eye thinks in its own way" - if aesthetics, in short, can really be an ars analogi rationis – it is thanks to these three faculties. The following theoretical developments of Ferraris’ philosophy could be interpreted as a long elaboration of the theme of memory, which initially resulted in the theory of traces proposed in Documentalità, and later in the consideration of its ontological consequences with New Realism

    Che cos’è uno stato mentale fittizio?

    No full text
    I compare two different conceptions of the imagination that have important consequences for the way we understand the nature of our pretend mental states. The conception proposed by Nichols and Stich (2000) is a “thin” one, since imaginings are identified with suppositions, and thus with propositional imagination alone. On the contrary, the theories of imagination proposed by Goldman (2006) and Currie and Ravenscroft (2002) are “thick”, since they think of imagination as a kind of recreative mechanism, one by means of which we re-instantiate different types of mental state. Both accounts are problematic, although for different reasons. Nichols and Stich, who take pretend representations to be a specific type of mental state, fail to give an explanation for the “peculiar analogy” existing between suppositions and genuine beliefs. On the other hand, the recreativist account has serious problems at explaining how a person involved in a pretense play can entertain, at the same time, pretend and genuine beliefs with either contradictory or identical contents, without being puzzled or making confusion between them. So, I conclude, the notions of a pretend mental state that the major accounts of pretense have at disposal are still underdetermined
    • …
    corecore