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11.
Pragmatic skills in aging : the case of irony
Greta Mazzaggio, Hortense De Bettignies, Diana Mazzarella, 2021, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: The use of non-literal language, like verbal irony, is deeply embedded in everyday communication and the ability to comprehend it changes across life. According to the echoic mention theory (Wilson & Sperber, 2012), understanding irony amounts to recognize a dissociative attitude. In the ‘Contextual echo’ example (Figure 1), Cynthia’s utterance “Tonight we gave a superb performance” is an example of irony. Cynthia is expressing a dissociative, mocking attitude towards the blatantly false proposition “Tonight we gave a superb performance”, that echoes the unfulfilled expectation that the concert would go well. The thought that is echoed can be “uttered”, like in the ‘Explicit echo’ example where the ironic utterance echoes the content explicitly expressed by Lea’s preceding statement; but the dissociative attitude can also target some implicitly communicated meaning, like in the ‘Implicated echo’ example, where the ironic utterance echoes the implicature of Lea’s statement, that is that they will sing well. Our first aim is to assess whether the echo’s degree of explicitness influence the processing of irony. Second, since research indicates that older adults sometimes struggle in understanding non-literal statements, like presupposition (Domaneschi & Di Paola 2019) or humor (Bischetti et al. 2019), we want to address the question of whether the processing of irony is more effortful in late adulthood and, if so, which underlying cognitive capacities might be responsible. Data collection is ongoing and the study is pre-registered on OSF (https://osf.io/94mys/?view_only=51fecb7acd694eca9b6b4d08cca02a26). Methods: The experiment requires the participation of 25 young adults (18-29-year-old) and 25 older adults (65-74-year-old). Participants will be administered a series of standardized tests to assess a) ToM (Faux Pas test) b) WM (Alpha span test) c) Autistic Quotient. The experimental study is a self-paced reading task. Each participant will be presented with stories adapted from the material of Spotorno & Noveck (2014): 15 ironic stories (5 with contextual echo, 5 with implicated echo and 5 with explicit echo), 5 literal stories, 10 decoys and 20 fillers (in a randomized order). Participants answer a yes/no comprehension question at the end of each story. An example of stories is given in Figure 1. Predictions: We expect overall slower reading time for ironic statements compared to literal ones and greater difficulties in the older adults group for ironic statements. We predict that our manipulation of the echo will have an effect on the processing of irony, and that reading times will be faster when the echo is explicit compared to when the echo is implicated (a stronger effect for older adults). We also expect that performance in our ToM task will predict reading times for ironic statements, with lower performance resulting in slower reading times. The presence of an implicated echo will exacerbate the difficulties. Moreover, we expect a positive correlation between the Autistic Quotient score and the difference between the reading times in the ironic and literal conditions. Finally, we expect that WM score will predict longer reading times for ironic statements when the implicitness of the echo poses higher cognitive demands. Analysis plan: First, we plan an evaluation of the group differences for neuropsychological data using a Wilcoxon signed- rank test. Then, we will proceed with a Pearson correlation coefficient test and analysis of variance to understand the relationship between the different measures (Clark, et al. 2010). The principal component analysis will be used to further assess their relationship. To understand the effect of the predictors on the reading time we will run a (Generalized) Linear Mixed-Effects Model with reading time as response variable, (Age Group x Type x Echo) as categorical predictors, test scores of neuropsychological data as continuous (or ordinal) predictors, and subject ID and items as random effects. All relevant interactions (both fixed and random) will also be assessed. The models will be fitted in R using the ‘lme4’ package (Bates et al. 2015). The (G)LMM will be simplified by removing one non-significant interaction at a time (and then, possibly non-significant main effects) on the basis of the Analysis of Deviance (LR Tests), until the optimal model is reached.
Ključne besede: irony, processing, aging
Objavljeno v RUNG: 22.09.2021; Ogledov: 1685; Prenosov: 81
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12.
Does irony understanding decline with age?
Greta Mazzaggio, Hortense De Bettignies, Diana Mazzarella, 2021, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: The use of non-literal language is deeply embedded in everyday communication and the ability to comprehend it changes across life. Research indicates that older adults sometimes struggle in understanding pragmatic aspects of language, such as presupposition (Domaneschi & Di Paola 2019), humor (Bischetti et al. 2019) or sarcasm (Phillips et al. 2015). The present study aims at broadening our understanding of these age-related changes by focusing on irony understanding. To understand irony (e.g., ‘The weather is great!’ uttered under a pouring rain), one needs to recognize that the speaker is expressing a dissociative attitude towards a proposition that is blatantly irrelevant or false, which echoes an attributed thought or statement (e.g., the proposition ‘The weather is great’ attributed to the mistaken weather forecaster). Previous research shows that the ability to process irony is closely related to Theory-of-Mind (ToM) and working memory (WM). As there is evidence of an age-related decline in both cognitive abilities, this decline may impact irony understanding in late adulthood. In our ongoing study, we test the effect of age on irony-processing by comparing self-paced reading times of ironic and literal statements across two age groups (young adults: 19-25 yo and older adults: 65-74 yo). Crucially, we manipulate the degree of explicitness of the statement echoed by the ironic speaker. We predict that the difference between the reading times for ironic and literal statements will be modulated by age. Moreover, we predict that reading times will be faster when the echo is explicit compared to when the echo is implicated and that this effect will be stronger for older adults. Finally, we expect that ToM and WM will both be significant predictors and that WM will play a crucial role when the implicitness of the echo poses higher cognitive demands
Ključne besede: irony, aging, cognitive decline, experimental pragmatics, processing
Objavljeno v RUNG: 22.09.2021; Ogledov: 1625; Prenosov: 45
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13.
The atypical pattern of irony comprehension in children with high-functioning autism
Greta Mazzaggio, Francesca Foppolo, Beatrice Giustolisi, Luca Surian, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: Irony comprehension is a complex task that typically developing (TD) children reach around the age of six. Some scholars (Sullivan et al., 1995 a.o.) claimed that 2nd order Theory of Mind (ToM) skills are required to understand irony, but also linguistic abilities (which predict ToM development: Milligan, Astington & Dack, 2007) play a role (Filippova & Astington, 2008; Bosco & Gabbatore, 2017). Children with high-functioning autism (HFA) have intact linguistic abilities, but impaired social relations. Some children with ASD pass even 2nd order ToM tasks, even if they could be using compensatory verbalizing strategies (Fisher, Happé & Dunn, 2005; Happé, 1995; Tager-Flusberg, 2000). We tested irony comprehension in HFA children with the aim to assess the contribution of the factors that may facilitate it and disentangle their relationships. We analyzed responses to the key question to understand irony, i.e. questions on speaker’s meaning and attitude. HFA children showed a peculiar pattern: their accuracy on literal stories was at ceiling, demonstrating that they understood the task, but in irony comprehension they lag behind their TD peers matched for age and non-verbal IQ. Even if this result was not unexpected, given the impairment in social communication associated to HFA, our group of 26 HFA showed a somehow surprising bimodal distribution. Moreover, differently from the TD group, accuracy on ironic stories did not depend neither on age nor on (non-)verbal IQ in HFA participants. And conversely ToM skills played a significant role in irony understanding only for HFA children, and not for TD children.In order to account for these data, we can hypothesize that – in general – HFA children show an impairment in pragmatic inference abilities and in ToM abilities (see Loukusa & Moilanen, 2009 and Baron-Cohen, 2000 for a review), as found also in our sample of LP children. The HP children, on the other hand, might adopt a strategy, different from TD children, to respond correctly to ironic stories, as suggested by Wang et al. (2006). Interestingly, Pexman et al. (2011) found that HFA children, who did not differ in accuracy with respect to TD controls, applied a different processing strategy for irony comprehension, and hypothesized that they resort to a more rule-based strategy, with an intellectual-style approach to compensate their social deficits. Our bimodal distribution could then identify two classes of HFA participants: the LP ones correspond to the pragmatic-impaired profile of HFA, the HP ones on the other hand could be using a compensatory strategy, since they could have been trained to recognize irony and/or other persons’ states of mind (ToM) during speech therapy sessions, as reported in Persicke et al. (2013). Future research should investigate this hypothesis more in depth, with a longitudinal study of HFA participants after a training in irony comprehension, in ToM metarepresentational abilities, and without training.
Ključne besede: irony processing, autism developmental disorder, theory of mind, IQ, experimental pragamtics
Objavljeno v RUNG: 21.09.2021; Ogledov: 1777; Prenosov: 54
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14.
Beyond agreement: How syntactic features are assigned in real time
Danil Khristov, Julie Franck, Arthur Stepanov, Penka Stateva, 2021, objavljeni znanstveni prispevek na konferenci

Ključne besede: feature assignment, Slavic, sentence processing, agreement, working memory
Objavljeno v RUNG: 21.06.2021; Ogledov: 1836; Prenosov: 0
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15.
Efficient and secured video encryption scheme for lightweight devices
Rajan Gupta, Neeharika Chaudhary, Anika Garg, Saibal K. Pal, 2014, izvirni znanstveni članek

Opis: Technological advancements in the field of multimedia have made access to information effortless. As information is available easily to everyone so it is quite essential to shield secretive data. This paper focuses on encrypting videos using confusion and diffusion at various levels. Chaotic skew tent map and nested piecewise linear chaotic map which are categorized under piecewise linear maps have been used for the processing. Two skew tent maps are cross coupled with each other to generate random values. The binary sequences are generated by comparing the outputs of the cross coupled piecewise linear chaotic maps. The generated binary sequence is used for bit level diffusion. Further, pixels are shuffled to provide higher level of encryption. The ciphered video is of the same size as that of plain video. The proposed scheme is of low complexity and provides high level encryption. The security analysis of the technique has been carried out and better results have been found regarding the statistical and differential attacks. The code development has been done in MATLAB and the scheme is applicable in areas like Video Encryption, Steganography and Digital Watermarking on various lightweight devices.
Ključne besede: video processing, multimedia encryption, chaotic maps, lightweight device security
Objavljeno v RUNG: 01.04.2021; Ogledov: 1857; Prenosov: 0
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16.
First upper limits on the radar cross section of cosmic-ray induced extensive air showers
R.U. Abbasi, Jon Paul Lundquist, 2017, izvirni znanstveni članek

Opis: TARA (Telescope Array Radar) is a cosmic ray radar detection experiment colocated with Telescope Array, the conventional surface scintillation detector (SD) and fluorescence telescope detector (FD) near Delta, Utah, U.S.A. The TARA detector combines a 40 kW, 54.1 MHz VHF transmitter and high-gain transmitting antenna which broadcasts the radar carrier over the SD array and within the FD field of view, towards a 250 MS/s DAQ receiver. TARA has been collecting data since 2013 with the primary goal of observing the radar signatures of extensive air showers (EAS). Simulations indicate that echoes are expected to be short in duration (∼ 10 µs) and exhibit rapidly changing frequency, with rates on the order 1 MHz/µs. The EAS radar cross-section (RCS) is currently unknown although it is the subject of over 70 years of speculation. A novel signal search technique is described in which the expected radar echo of a particular air shower is used as a matched filter template and compared to waveforms obtained by triggering the radar DAQ using the Telescope Array fluorescence detector. No evidence for the scattering of radio frequency radiation by EAS is obtained to date. We report the first quantitative RCS upper limits using EAS that triggered the Telescope Array Fluorescence Detector.
Ključne besede: Cosmic ray, Radar, Digital signal processing, Radar cross-section
Objavljeno v RUNG: 27.04.2020; Ogledov: 2560; Prenosov: 0
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17.
Recovery of bioactive components from fruit processing wastes
Branka Mozetič Vodopivec, 2019, objavljeni znanstveni prispevek na konferenci

Ključne besede: processing wastes, green extraction methods, polyphenols
Objavljeno v RUNG: 23.08.2019; Ogledov: 2986; Prenosov: 1
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18.
Anomaly detection in processing of complex syntax by early L2 learners
Arthur Stepanov, Sara Andreetta, Penka Stateva, Adam Zawiszewski, Itziar Laka, 35, izvirni znanstveni članek

Opis: This study investigates the processing of long-distance syntactic dependencies by native speakers of Slovenian (L1) who are advanced learners of Italian as a second language (L2), compared with monolingual Italian speakers. Using a self-paced reading task, we compare sensitivity of the early-acquired L2 learners to syntactic anomalies in their L2 in two empirical domains: (1) syntactic islands, for which the learners’ L1 and L2 grammars provide a converging characterization, and (2) verb–clitic constructions, for which the respective L1 and L2 grammatical descriptions diverge. We find that although our L2 learners show native-like processing patterns in the former, converging, grammatical domain, they may nevertheless perform non-native-like with respect to syntactic phenomena in which the L1 and L2 grammars do not align, despite the early age of L2 acquisition. Implications for theories of L2 acquisition and endstate are discussed.
Ključne besede: bilingualism, clitic, Italian, sentence processing, Slovenian, syntactic island
Objavljeno v RUNG: 21.02.2019; Ogledov: 3749; Prenosov: 111
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Food production: wastes as potential source of bioactive compounds
Branka Mozetič Vodopivec, predavanje na tuji univerzi

Ključne besede: Food Production, lectures for students, reuse of wastes from plant processing
Objavljeno v RUNG: 11.09.2018; Ogledov: 3278; Prenosov: 0
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