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Atypical Prosody in Asperger Syndrome: Perceptual and Acoustic Measurements
Publication . Filipe, Marisa G.; Frota, Sónia; Castro, São Luís; Vicente, Selene G.
It is known that individuals with Asperger syndrome (AS) may show no problems with regard to what is said (e.g., lexical content) but tend to have difficulties in how utterances are produced, i.e., they may show prosodic impairments. In the present study, we focus on the use of prosodic features to express grammatical meaning. Specifically, we explored the sentence type difference between statements and questions that is conveyed by intonation, using perceptual and acoustic measurements. Children aged 8 and 9 years with AS (n = 12) were matched according to age and nonverbal intelligence with typically developing peers (n = 17). Although children with AS could produce categorically accurate prosodic patterns, their prosodic contours were perceived as odd by adult listeners, and acoustic measurements showed alterations in duration and pitch. Additionally, children with AS had greater variability in fundamental frequency contours compared to typically developing peers.
Fronteiras do vozeamento na identificação do falante
Publication . Martins, Fernando; Rodrigues, Celeste; Brissos, Fernando
This paper aims at testing a new parameter of acoustic analysis of speech to be used in forensic phonetic analysis. We state the following hypothesis: Prevoicing values depend on speaker physiological and motion abilities and are part of his profile. We describe the results of the acoustic analysis of speech of fourteen European Portuguese speakers and we compare them to a real forensic case. Our results show that Prevoicing is clearly a cue for speaker identity and, consequently, it must be included in acoustic forensic evaluation reports.
A Fonética Forense na produção de prova no ordenamento jurídico português: o parâmetro do pré-vozeamento
Publication . Martins, Fernando; Simões, Deolinda Reis; Brissos, Fernando; Rodrigues, Celeste
Neste artigo, são abordados dois temas principais: o valor da perícia em julgamento e o estudo de um parâmetro, o pré-vozeamento, em fonética forense. O valor probatório da perícia está já consagrado no ordenamento jurídico português, na medida em que o juiz se encontra vinculado às conclusões do relatório pericial. Porém, é defendida a perspectiva de que são necessários novos parâmetros a serem incluídos nas perícias forenses. Propomos a inclusão do pré-vozeamento, que preenche os requisitos suficientes para o fortalecimento do valor da perícia como prova em juízo. Existem condições para que o valor de prova da fonética forense seja cada vez mais forte, atendendo ao crescente número de escutas telefónicas realizadas pelas autoridades judiciais e à possibilidade de se encontrarem parâmetros de análise da voz cada vez mais eficazes.
Modality in Text: a Proposal for Corpus Annotation
Publication . Hendrickx, Iris; Mendes, Amália; Mencarelli, Silvia
We present a annotation scheme for modality in Portuguese. In our annotation scheme we have tried to combine a more theoretica llinguistic view point with a practical annotation scheme that will also be useful for NLP research but is not geared towards one specificapplication. Our notion of modality focuses on the attitude and opinion of the speaker or of the subject of the sentence. We validated the annotation scheme on a corpus sample of approximately 2000 sentences that we fully annotated with modal information using the MMAX2 annotation tool to produce XML annotation. We discuss our main findings and pay attention to the difficult cases that we encountered as they illustrate the complexity of modality and its interactions with other elements in the text.
Graphical content of medicinal package inserts: an exploratory study to evaluate potential legibility issues
Publication . Pires, Carla; Vigário, Marina; Cavaco, Afonso
The graphical content of the Medicines Package Inserts (MPIs), such as illustrations and typographic features should be legible and appropriate, as required by international pharmaceutical regulations.
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Entidade financiadora
Fundação para a Ciência e a Tecnologia
Programa de financiamento
3599-PPCDT
Número da atribuição
PEst-OE/LIN/UI0214/2013