scholarly journals Sexual Receptivity Signal of Lordosis Posture and Intra-Sexual Competition in Women

Sexes ◽  
2022 ◽  
Vol 3 (1) ◽  
pp. 59-67
Author(s):  
Farid Pazhoohi ◽  
Ray Garza ◽  
Alan Kingstone
Keyword(s):  
Intrasexual Competition ◽  
Forced Choice ◽  
Choice Task ◽  
Sexual Receptivity ◽  
Standing Posture ◽  
Sexual Competition ◽  
Women’S Perceptions ◽  
Forced Choice Task ◽  
Vertebral Wedging

Previous research has shown that women may use self-enhancement strategies to compete with one other. Lumbar curvature in women is considered to enhance a woman′s attractiveness, potentially due to its role in bipedal fetal load and sexual receptiveness. The current study investigated the role of lumbar curvature on women’s perceptions of sexual receptiveness as well as its role in women’s intrasexual competitiveness. Study 1 (N = 138) tested and confirmed that women’s intrasexual competition influences their perception of sexual receptivity of women as a function of lordosis posture depicted in a standing posture. Study 2 (N = 69) replicated these results and extended them to other postures, namely, the quadruped and supine positions. Study 3 (N = 106), using a two-alternative forced-choice task, revealed that other women perceive relatively larger arched-back postures as more threatening to their relationship and frequently as being more attractive. Collectively, this work suggests that women consider a lordotic posture in other women as a signal of sexual receptivity and perceive it as a threat to their relationship. This research provides robust support for the sexually receptivity hypothesis of lumbar curvature, questioning the alternative morphological vertebral wedging hypothesis.

scholarly journals Morphosyntactic weaknesses in Developmental Language Disorder: the role of structure and agreement configurations

2020 ◽  
Vol 47 (5) ◽  
pp. 909-944 ◽  
Author(s):  
Vincenzo MOSCATI ◽  
Luigi RIZZI ◽  
Ilenia VOTTARI ◽  
Anna Maria CHILOSI ◽  
Renata SALVADORINI ◽  
...  
Keyword(s):  
Language Disorder ◽  
Forced Choice ◽  
Choice Task ◽  
Typically Developing ◽  
Developmental Language Disorder ◽  
The Hierarchical Structure ◽  
Forced Choice Task ◽  
Structural Distance ◽  
New Evidence

AbstractAgreement is a morphosyntactic dependency which is sensitive to the hierarchical structure of the clause and is constrained by the structural distance that separates the elements involved in this relation. In this paper we present two experiments, providing new evidence that Italian-speaking children with Developmental Language Disorder (DLD), as well as Typically Developing (TD) children, are sensitive to the same hierarchical and locality factors that characterise agreement in adult grammars. This sensitivity holds even though DLD children show accrued difficulties in more complex agreement configurations. In the first experiment, a forced-choice task was used to establish whether children are more affected in the computation of S-V agreement when an element intervenes hierarchically or linearly in the agreement relation: DLD children are more subject to attraction errors when the attractor intervenes hierarchically, indicating that DLD children discriminate between hierarchical and linear configurations. The second experiment, also conducted through a forced-choice task, shows that the computation of agreement in DLD children is more ‘fragile’ than in TD children (and also in children with a primary impairment in the phonological domain), in that it is more sensitive to the factors of complexity identified in Moscati and Rizzi's (2014) typology of agreement configurations. To capture the agreement pattern found in DLD children, we put forth a novel hypothesis: the Fragile Computation of Agreement Hypothesis. Its main tenet is that DLD children make use of the same grammatical operations employed by their peers, as demonstrated in Experiment 1, but difficulties increase as a function of the complexity of the agreement configuration.

Habit learning in a forced-choice task

2001 ◽  
Author(s):  
Markus Dressel ◽  
Teena D. Moody ◽  
Barbara J. Knowlton
Keyword(s):  
Forced Choice ◽  
Choice Task ◽  
Habit Learning ◽  
Forced Choice Task

scholarly journals RNNs develop history biases in an expectation-guided two-alternative forced choice task

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

scholarly journals When regularization gets it wrong: children over-simplify language input only in production

2018 ◽  
Vol 45 (5) ◽  
pp. 1054-1072 ◽  
Author(s):  
Jessica F. SCHWAB ◽  
Casey LEW-WILLIAMS ◽  
Adele E. GOLDBERG
Keyword(s):  
Complex System ◽  
High Accuracy ◽  
Forced Choice ◽  
Choice Task ◽  
The Other ◽  
Natural Languages ◽  
Multiple Factors ◽  
Artificial Languages ◽  
Forced Choice Task ◽  
Unpredictable Variation

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.

scholarly journals Human listeners’ perception of behavioural context and core affect dimensions in chimpanzee vocalizations

2020 ◽  
Vol 287 (1929) ◽  
pp. 20201148
Author(s):  
Roza G. Kamiloğlu ◽  
Katie E. Slocombe ◽  
Daniel B. M. Haun ◽  
Disa A. Sauter
Keyword(s):  
Related Species ◽  
Acoustic Analysis ◽  
Forced Choice ◽  
Choice Task ◽  
Emotional States ◽  
Response Options ◽  
Core Affect ◽  
Forced Choice Task ◽  
Affective Information ◽  
Arousal And Valence

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.

Effects of Conducting Plane on Band and Choral Musicians’ Perceptions of Conductor and Ensemble Expressivity

2015 ◽  
Vol 63 (3) ◽  
pp. 369-383 ◽  
Author(s):  
Brian A. Silvey ◽  
Ryan A. Fisher
Keyword(s):  
Significant Interaction ◽  
Forced Choice ◽  
Choice Task ◽  
Conducting Plane ◽  
High Quality ◽  
Choral Conductor ◽  
Written Comments ◽  
Negative Comments ◽  
Type Band ◽  
Forced Choice Task

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.

Classroom input to accelerate feature reassembly of English generics

2018 ◽  
Vol 2 (2) ◽  
pp. 189-214
Author(s):  
Mary Abumelha
Keyword(s):  
Forced Choice ◽  
Choice Task ◽  
Control Group ◽  
Bare Plural ◽  
Arabic Speakers ◽  
Najdi Arabic ◽  
Post Test ◽  
Forced Choice Task ◽  
Repetition Task

This is an experimental study on the effect of explicit and implicit classroom input on the acquisition of English generics by L1-Najdi Arabic speakers. Following a feature-based contrastive analysis, acquisition difficulties are predicted with indefinite singular and bare plural contexts. The experiment included fifty-four students divided into two experimental groups and one uninstructed control group. One experimental group received implicit input by using genre analysis of texts reinforced with generic noun phrases (NPs), and the other group received explicit grammatical ‘focus on form’ on generics. Two instruments were used: a forced choice task and a sentence repetition task conducted as pre-tests, post-tests and delayed post-tests. The results showed a significant increase in the total scores of both experimental groups, but a long-term effect was only found with the explicit group. The forced choice task showed significant improvement in the explicit group’s accuracy on generic indefinite singular and bare plural contexts and long-term improvement on the bare plural. The explicit group’s results on the repetition task show temporary improvement in the generic indefinite singular post-test. In general, the results suggest that explicit input is more effective than implicit input. Implications on acquisition difficulties and instruction are discussed.

scholarly journals No temporal contrast enhancement of simple decreases in noxious heat

2019 ◽  
Vol 121 (5) ◽  
pp. 1778-1786 ◽  
Author(s):  
Brianna Beck ◽  
Sahana Gnanasampanthan ◽  
Gian Domenico Iannetti ◽  
Patrick Haggard
Keyword(s):  
Contrast Enhancement ◽  
Initial Temperature ◽  
Forced Choice ◽  
Choice Task ◽  
Temporal Contrast ◽  
Contact Heat ◽  
Noxious Heat ◽  
Contrast Mechanism ◽  
Forced Choice Task ◽  
Better Than

Offset analgesia (OA) studies have found that small decreases in the intensity of a tonic noxious heat stimulus yield a disproportionately large amount of pain relief. In the classic OA paradigm, the decrease in stimulus intensity is preceded by an increase of equal size from an initial noxious level. Although the majority of researchers believe this temporal sequence of two changes is important for eliciting OA, it has also been suggested that the temporal contrast mechanism underlying OA may enhance detection of simple, isolated decreases in noxious heat. To test whether decreases in noxious heat intensity, by themselves, are perceived better than increases of comparable sizes, we used an adaptive two-interval alternative forced choice task to find perceptual thresholds for increases and decreases in radiant and contact heat. Decreases in noxious heat were more difficult to perceive than increases of comparable sizes from the same initial temperature of 45°C. In contrast, decreases and increases were perceived equally well within a common range of noxious temperatures (i.e., when increases started from 45°C and decreases started from 47°C). In another task, participants rated the pain intensity of heat stimuli that randomly and unpredictably increased, decreased, or remained constant. Ratings of unpredictable stimulus decreases also showed no evidence of perceptual enhancement. Our results demonstrate that there is no temporal contrast enhancement of simple, isolated decreases in noxious heat intensity. Combined with previous OA findings, they suggest that long-lasting noxious stimuli that follow an increase-decrease pattern may be important for eliciting the OA effect. NEW & NOTEWORTHY Previous research suggested that a small decrease in noxious heat intensity feels surprisingly large because of sensory enhancement of noxious stimulus offsets (a simplified form of “offset analgesia”). Using a two-alternative forced choice task where participants detected simple increases or decreases in noxious heat, we showed that decreases in noxious heat, by themselves, are no better perceived than increases of comparable sizes. This suggests that a decrease alone is not sufficient to elicit offset analgesia.

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