scholarly journals Why is children’s interpretation of doubly quantified sentences non-isomorphic?

Linguistics ◽  
2017 ◽  
Vol 55 (6) ◽  
Author(s):  
Katalin É. Kiss ◽  
Tamás Zétényi

AbstractThe initial hypothesis examined in this paper is that Hungarian preschoolers assign to sentences containing two numerical quantifiers and a distributivity marker the same isomorphic distributive interpretation as Hungarian adults do. This hypothesis is partially refuted by Experiment 1, a truth value judgement task, and Experiment 2, a forced choice task, which show that children can access distributive readings, however, they tend to accept both isomorphic and inverse scope. Experiment 3, an act-out task, demonstrates that if there are no strong pragmatic cues to enforce a distributive interpretation, children’s primary interpretation is the collective reading. This leads us to the formulation of a new hypothesis: if the default reading of a doubly quantified sentence for preschoolers is the collective interpretation, in line with scope economy, then a distributive reading always represents the revision of the collective interpretation. This is confirmed by Experiment 4, showing that inverse answers have an increased reaction time. The new hypothesis can explain the lack of isomorphism in children’s interpretation of distributive scope as follows: since the distributive reading is dissociated from the linear flow of speech, the linear order of the two quantifiers does not necessarily determine scope order; children can base relative scope on the hierarchy of grammatical functions, on pragmatic cues, etc.

2019 ◽  
Vol 62 (5) ◽  
pp. 1243-1257 ◽  
Author(s):  
Peggy Pik Ki Mok ◽  
Holly Sze Ho Fung ◽  
Vivian Guo Li

Purpose Previous studies showed early production precedes late perception in Cantonese tone acquisition, contrary to the general principle that perception precedes production in child language. How tone production and perception are linked in 1st language acquisition remains largely unknown. Our study revisited the acquisition of tone in Cantonese-speaking children, exploring the possible link between production and perception in 1st language acquisition. Method One hundred eleven Cantonese-speaking children aged between 2;0 and 6;0 (years;months) and 10 adolescent reference speakers participated in tone production and perception experiments. Production materials with 30 monosyllabic words were transcribed in filtered and unfiltered conditions by 2 native judges. Perception accuracy was based on a 2-alternative forced-choice task with pictures covering all possible tone pair contrasts. Results Children's accuracy of production and perception of all the 6 Cantonese tones was still not adultlike by age 6;0. Both production and perception accuracies matured with age. A weak positive link was found between the 2 accuracies. Mother's native language contributed to children's production accuracy. Conclusions Our findings show that production and perception abilities are associated in tone acquisition. Further study is needed to explore factors affecting production accuracy in children. Supplemental Material https://doi.org/10.23641/asha.7960826


2001 ◽  
Author(s):  
Markus Dressel ◽  
Teena D. Moody ◽  
Barbara J. Knowlton

Symmetry ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 279 ◽  
Author(s):  
Alex L. Jones ◽  
Bastian Jaeger

The factors influencing human female facial attractiveness—symmetry, averageness, and sexual dimorphism—have been extensively studied. However, recent studies, using improved methodologies, have called into question their evolutionary utility and links with life history. The current studies use a range of approaches to quantify how important these factors actually are in perceiving attractiveness, through the use of novel statistical analyses and by addressing methodological weaknesses in the literature. Study One examines how manipulations of symmetry, averageness, femininity, and masculinity affect attractiveness using a two-alternative forced choice task, finding that increased masculinity and also femininity decrease attractiveness, compared to unmanipulated faces. Symmetry and averageness yielded a small and large effect, respectively. Study Two utilises a naturalistic ratings paradigm, finding similar effects of averageness and masculinity as Study One but no effects of symmetry and femininity on attractiveness. Study Three applies geometric face measurements of the factors and a random forest machine learning algorithm to predict perceived attractiveness, finding that shape averageness, dimorphism, and skin texture symmetry are useful features capable of relatively accurate predictions, while shape symmetry is uninformative. However, the factors do not explain as much variance in attractiveness as the literature suggests. The implications for future research on attractiveness are discussed.


2019 ◽  
Author(s):  
Manuel Molano-Mazon ◽  
Guangyu Robert Yang ◽  
Ainhoa Hermoso-Mendizabal ◽  
Jaime de la Rocha

2018 ◽  
Vol 45 (5) ◽  
pp. 1054-1072 ◽  
Author(s):  
Jessica F. SCHWAB ◽  
Casey LEW-WILLIAMS ◽  
Adele E. GOLDBERG

AbstractChildren tend to regularize their productions when exposed to artificial languages, an advantageous response to unpredictable variation. But generalizations in natural languages are typically conditioned by factors that children ultimately learn. In two experiments, adult and six-year-old learners witnessed two novel classifiers, probabilistically conditioned by semantics. Whereas adults displayed high accuracy in their productions – applying the semantic criteria to familiar and novel items – children were oblivious to the semantic conditioning. Instead, children regularized their productions, over-relying on only one classifier. However, in a two-alternative forced-choice task, children's performance revealed greater respect for the system's complexity: they selected both classifiers equally, without bias toward one or the other, and displayed better accuracy on familiar items. Given that natural languages are conditioned by multiple factors that children successfully learn, we suggest that their tendency to simplify in production stems from retrieval difficulty when a complex system has not yet been fully learned.


2020 ◽  
Vol 287 (1929) ◽  
pp. 20201148
Author(s):  
Roza G. Kamiloğlu ◽  
Katie E. Slocombe ◽  
Daniel B. M. Haun ◽  
Disa A. Sauter

Vocalizations linked to emotional states are partly conserved among phylogenetically related species. This continuity may allow humans to accurately infer affective information from vocalizations produced by chimpanzees. In two pre-registered experiments, we examine human listeners' ability to infer behavioural contexts (e.g. discovering food) and core affect dimensions (arousal and valence) from 155 vocalizations produced by 66 chimpanzees in 10 different positive and negative contexts at high, medium or low arousal levels. In experiment 1, listeners ( n = 310), categorized the vocalizations in a forced-choice task with 10 response options, and rated arousal and valence. In experiment 2, participants ( n = 3120) matched vocalizations to production contexts using yes/no response options. The results show that listeners were accurate at matching vocalizations of most contexts in addition to inferring arousal and valence. Judgments were more accurate for negative as compared to positive vocalizations. An acoustic analysis demonstrated that, listeners made use of brightness and duration cues, and relied on noisiness in making context judgements, and pitch to infer core affect dimensions. Overall, the results suggest that human listeners can infer affective information from chimpanzee vocalizations beyond core affect, indicating phylogenetic continuity in the mapping of vocalizations to behavioural contexts.


2020 ◽  
pp. 002383092097184
Author(s):  
Jeremy Steffman ◽  
Hironori Katsuda

Recent research has proposed that listeners use prosodic information to guide their processing of phonemic contrasts. Given that prosodic organization of the speech signal systematically modulates durational patterns (e.g., accentual lengthening and phrase-final (PF) lengthening), listeners’ perception of durational contrasts has been argued to be influenced by prosodic factors. For example, given that sounds are generally lengthened preceding a prosodic boundary, listeners may adjust their perception of durational cues accordingly, effectively compensating for prosodically-driven temporal patterns. In the present study we present two experiments designed to test the importance of pitch-based cues to prosodic structure for listeners’ perception of contrastive vowel length (CVL) in Tokyo Japanese along these lines. We tested if, when a target sound is cued as being PF, listeners compensatorily adjust categorization of vowel duration, in accordance with PF lengthening. Both experiments were a two-alternative forced choice task in which listeners categorized a vowel duration continuum as a phonemically short or long vowel. We manipulated only pitch surrounding the target sound in a carrier phrase to cue it as intonational phrase final, or accentual phrase medial. In Experiment 1 we tested perception of an accented target word, and in Experiment 2 we tested perception of an unaccented target word. In both experiments, we found that contextual changes in pitch influenced listeners’ perception of CVL, in accordance with their function as signaling intonational structure. Results therefore suggest that listeners use tonal information to compute prosodic structure and bring this to bear on their perception of durational contrasts in speech.


2020 ◽  
Vol 47 (6) ◽  
pp. 1132-1169
Author(s):  
Meghan ARMSTRONG

AbstractThis study explores how young children infer nuances in epistemic modality through prosody. A forced-choice task was used, testing children's (ages three to seven) comprehension of the might/will distinction (modal condition) as well their ability to modulate the strength of might through two prosodic tunes (prosody condition). Positive and negative valence conditions were included. Younger children were shown to start off performing above chance for the modal condition, and at around chance for the prosody condition, but after age four performance on the prosody condition quickly improved. For both modal verbs and prosody, children performed significantly better when valence was positive. By age seven, children performed at ceiling for all conditions. Qualitative analysis of children's justifications for prosody responses showed metalinguistic awareness of prosodic meaning as early as age four, with the ability to relate prosody to epistemic modal meaning becoming quite common by age seven.


Behaviour ◽  
2019 ◽  
Vol 156 (13-14) ◽  
pp. 1283-1307 ◽  
Author(s):  
Jay W. Schwartz ◽  
Harold Gouzoules

Abstract Screams are phylogenetically widespread and typically associated with emotionally intense contexts, and thus present a window into the evolution of vocal emotion expression. Screams are distinct from other vocalizations, but nonetheless exhibit acoustic variation. The purpose of this study was to assess whether humans are sensitive to this variation, specifically, whether they base perceptions of screamer arousal on the pitch and/or duration of screams. A forced choice task revealed a significant tendency to perceive longer or higher-pitched (but otherwise acoustically identical) screams as more emotionally intense than shorter or lower-pitched screams, respectively. This pattern was independent of participants’ gender, empathy score, and previous exposure to screams in the media. Furthermore, scream pairs exhibiting greater differences in duration yielded more consistent responses. Evolutionary implications relating to the acoustic correlates of arousal across mammalian species, as well as the socioecological functions of screams in other primates, are discussed.


2015 ◽  
Vol 63 (3) ◽  
pp. 369-383 ◽  
Author(s):  
Brian A. Silvey ◽  
Ryan A. Fisher

The purpose of this study was to examine whether one aspect of conducting technique, the conducting plane, would affect band and/or choral musicians’ perceptions of conductor and ensemble expressivity. A band and a choral conductor were each videotaped conducting 1-min excerpts from Morten Lauridsen’s O Magnum Mysterium while using a high, medium, and low conducting plane. These six videos then were synchronized with an appropriately corresponding identical high-quality band or choral audio excerpt. College ensemble members ( N = 120; band, n = 60; choral, n = 60) viewed all six videos and rated the expressivity of both the conductor and the ensemble. Through the use of a forced-choice task, they also provided one brief comment about either the conductor or the ensemble. Results indicated that conducting plane significantly affected ratings of both conductor and ensemble expressivity. A significant interaction was found between conducting plane (high, medium, and low) and ensemble type (band or choir audio excerpt heard) with regard to conductor expressivity ratings. Participants found the choir conductor conducting at the medium plane to be slightly more expressive than the band conductor conducting at the same plane. Conversely, participants rated the expressivity of the band conductor slightly higher than the choir conductor at both the high and low conducting planes. Participants’ written comments were directed predominantly at the conductor rather than the ensemble, and the high-conducting-plane videos elicited the most negative comments.


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