1,721,079 research outputs found
Implant technology and TFS processing in relation to speech discrimination and music perception and appreciation
Full text linkDirect stimulation of the auditory nerve via a Cochlear Implant (CI) enables profoundly deaf subjects to perceive sounds. Many CI users find language comprehension satisfactory in quiet and accessible in the presence of noise. However, music contains different dimensions which need to be approached in different ways. Whilst both language and music take advantage of the modulation of acoustic parameters to convey information, music is an acoustically more complex stimulus than language, demanding more complex resolution mechanisms.
One of the most important aspects that contributes to speech perception skills, especially when listening in a fluctuating background, is Temporal Fine Structure processing. TFS cues are pre-dominant in conveying Low Frequency (LF) signals. Harmonic (HI) and Disharmonic (DI) In-tonation are tests of pitch perception in the LF domain which are thought to depend on avail-ability of TFS cues and which are included in the protocol on this group of adult CI recipients.
One of the primary aims of this thesis was the production of a new assessment tool, the Italian STARR test which was based on the measurement of speech perception using a roving-level adaptive method where the presentation level of both speech and noise signals varied between each sentence presentation. The STARR test attempts to reflect a better representation of real world listening conditions where background noise is usually present and speech intensity var-ies according to vocal capacity as well as the distance of the speaker. The outcomes for the Italian STARR in NH adults were studied to produce normative data, as well as to evaluate inter-list variability and learning effects. (Chapter 4).
The second aim was to investigate LF pitch perception outcomes linked to availability of TFS cues in a group of adult CI recipients including bimodal users in relation to speech perception, in particular Italian STARR outcomes. Here it was seen that age had a significant effect on performance especially in older adults. Similarly, CI recipients (even better performers) showed abnormal findings in comparison to NH subjects. On the other hand, the significant effect of CI thresholds re-emphasized the sensitivity of the test to low intensity speech which a CI user can often encounter under everyday listening conditions. Statistically significant correlations between HI/DI and STARR performance were found. Moreover, bimodal benefit was seen both for HI/DI and STARR tests. Overall findings confirmed the usefulness of evaluating both LF pitch and speech perception in noise in order to track changes in TFS sen-sitivity for CI recipients over time and across different listening conditions which might be provided by future technological progress. (Chapter 5)
Finally, the last and main aspect taken into account in this thesis was the study of the difficul-ties experienced by CI users when listening to music. An attempt was made to correlate find-ings resulting from the previous phases of this study both to Speech in Noise and to the com-plex subjective aspects of Music Perception and Appreciation: correlation analysis between HI/DI tests and the main dimensions of Speech in Noise (STARR and OLSA) and Music Ap-preciation was performed. (Chapter 6). Interestingly, positive findings were found for the two most complex types of Music (Classical, Jazz), whereas Soul did not seem to require particular competence in Pitch perception for the appreciation of the subjective variables taken into con-sideration by this study
Jurg Zutt. Lungo i sentieri di una psichiatria antropologica. Antologia di saggi
No full textJürg Zutt, psichiatra e psicopatologo di fama mondiale, è annoverato tra i più alti esponenti dell’orientamento fenomenologico. L’assenza di una traduzione italiana dei suoi principali scritti è considerata da sempre una grave lacuna. La presente raccolta, che include i saggi maggiori tra quelli selezionati dall’autore per un’antologia complessiva pubblicata in tedesco, offre quindi per la prima volta il completo accesso a concezioni di grande interesse clinico e concettuale. Saggi come quello, giustamente celebre, dedicato all’atteggiamento interno, o gli altri riguardanti la corporeità vissuta, l’analisi differenziale di sguardo e voce, la schizofrenia e i vissuti estetici, la corporeità degli animali, e via proseguendo, nonostante l’apparente eterogeneità disegnano, nel loro coinvolgente susseguirsi, un modello preciso. Rivelano così le coordinate della cosiddetta Antropologia Comprensiva, profonda modalità di pensare l’essere umano, dalla normalità alla psicopatologia
La schizofrenia incipiente. Un saggio di analisi gestaltica del delirio
No full textRipetutamente citata, di rado conosciuta, la lezione di Klaus Conrad si differenzia da ogni altra nel panorama della psichiatria fenomenologica. Diversi dal consueto, in particolare, i presupposti che l'Autore adotta, primo tra tutti l'impianto sperimentale della Gestaltpsychologie. Altrettanto originali si dimostrano le conclusioni a cui, applicando tali presupposti, egli perviene. Ampi sono i rimandi a psichiatri "classici", quali Jaspers, Schneider, Binswanger, dei quali vengono discusse criticamente le intuizioni, pur non mancando convergenze di pensiero. La visione di Conrad si nutre comunque di una marcata autonomia e di un impianto personale di tutto rilievo, se è vero che questo "grande psichiatra tedesco" (Berrios, 1996), oltre che "clinico superlativo" (Ploog, 1974), ha fornito "una delle più incisive descrizioni che sia mai stata scritta riguardo all'esordio schizofrenico" (Hambrecht e Hafner, 1993). Nel volume capitale qui tradotto, Die beginnende Schizophrenie (1958), il procedere dell'autore si ispira alla fenomenologia "ai suoi inizi". Ma, più che riallacciarsi alle conclusioni della fenomenologia delle origini, in più punti sottoposte a revisione, di essa Conrad adotta pienamente, da una parte, il rigore logico, dall'altra la stringente analisi dei vissuti
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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