scholarly journals A Comparison of Coverbal Gesture Use in Oral Discourse Among Speakers With Fluent and Nonfluent Aphasia

2017 ◽  
Vol 60 (7) ◽  
pp. 2031-2046 ◽  
Author(s):  
Anthony Pak-Hin Kong ◽  
Sam-Po Law ◽  
Gigi Wan-Chi Chak

Purpose Coverbal gesture use, which is affected by the presence and degree of aphasia, can be culturally specific. The purpose of this study was to compare gesture use among Cantonese-speaking individuals: 23 neurologically healthy speakers, 23 speakers with fluent aphasia, and 21 speakers with nonfluent aphasia. Method Multimedia data of discourse samples from these speakers were extracted from the Cantonese AphasiaBank. Gestures were independently annotated on their forms and functions to determine how gesturing rate and distribution of gestures differed across speaker groups. A multiple regression was conducted to determine the most predictive variable(s) for gesture-to-word ratio. Results Although speakers with nonfluent aphasia gestured most frequently, the rate of gesture use in counterparts with fluent aphasia did not differ significantly from controls. Different patterns of gesture functions in the 3 speaker groups revealed that gesture plays a minor role in lexical retrieval whereas its role in enhancing communication dominates among the speakers with aphasia. The percentages of complete sentences and dysfluency strongly predicted the gesturing rate in aphasia. Conclusions The current results supported the sketch model of language–gesture association. The relationship between gesture production and linguistic abilities and clinical implications for gesture-based language intervention for speakers with aphasia are also discussed.

2021 ◽  
Author(s):  
◽  
Paula Speer

<p>Individuals with nonfluent aphasia are able to produce many words in isolation, but have great difficulty producing sentences. Most research to date has compared accuracy across different types of sentence structures, focussing on grammatical aspects that may be compromised in nonfluent aphasia. However, based on the premise that lexical elements activate their associated grammatical frames as well as vice versa, lexical content may also be of vital importance. For example, rapid access to lexical elements – particularly ones appearing early in the sentence - may be crucial, especially if the sentence plan is weakly activated or rapidly decaying. The current study investigated the effect of different aspects of lexical content on nonfluent aphasic sentence production. Five participants with nonfluent aphasia, four participants with fluent aphasia and eight controls completed two picture description tasks eliciting subject-verb-object sentences (e.g., the dog is chasing the fox). Based on existing evidence suggesting that common words are accessed more rapidly than rarer ones, Experiment 1 manipulated the frequency of sentence nouns, thereby varying their speed of lexical retrieval by varying the frequency of sentence nouns. Nonfluent participants' accuracy was consistently higher for sentences commencing with a high frequency subject noun, even when errors on those nouns were themselves excluded. This was not the case for the fluent participants. Experiment 2 manipulated the semantic relationship between subject and object nouns. Previous research suggests that phrases containing related words may be challenging for individuals with nonfluent aphasia, possibly because lexical representations are inadequately tied to appropriate structural representations. The nonfluent participants produced sentences less accurately when they contained related lexical items, even when those items were in different noun phrases. The fluent participants exhibited the opposite trend. Finally, the relationship between the patterns observed in Experiment 1 and 2 and lesion location in the aphasic participants was explored by analysing magnetic resonance scans. We discuss the implications of our findings for theoretical accounts of sentence production more generally, and of nonfluent aphasia in particular. More precisely, we propose that individuals with nonfluent aphasia are disproportionately reliant on activated lexical representations to drive the sentence generation process, an idea we call the Content Drives Structure (COST) hypothesis.</p>


2021 ◽  
Author(s):  
◽  
Paula Speer

<p>Individuals with nonfluent aphasia are able to produce many words in isolation, but have great difficulty producing sentences. Most research to date has compared accuracy across different types of sentence structures, focussing on grammatical aspects that may be compromised in nonfluent aphasia. However, based on the premise that lexical elements activate their associated grammatical frames as well as vice versa, lexical content may also be of vital importance. For example, rapid access to lexical elements – particularly ones appearing early in the sentence - may be crucial, especially if the sentence plan is weakly activated or rapidly decaying. The current study investigated the effect of different aspects of lexical content on nonfluent aphasic sentence production. Five participants with nonfluent aphasia, four participants with fluent aphasia and eight controls completed two picture description tasks eliciting subject-verb-object sentences (e.g., the dog is chasing the fox). Based on existing evidence suggesting that common words are accessed more rapidly than rarer ones, Experiment 1 manipulated the frequency of sentence nouns, thereby varying their speed of lexical retrieval by varying the frequency of sentence nouns. Nonfluent participants' accuracy was consistently higher for sentences commencing with a high frequency subject noun, even when errors on those nouns were themselves excluded. This was not the case for the fluent participants. Experiment 2 manipulated the semantic relationship between subject and object nouns. Previous research suggests that phrases containing related words may be challenging for individuals with nonfluent aphasia, possibly because lexical representations are inadequately tied to appropriate structural representations. The nonfluent participants produced sentences less accurately when they contained related lexical items, even when those items were in different noun phrases. The fluent participants exhibited the opposite trend. Finally, the relationship between the patterns observed in Experiment 1 and 2 and lesion location in the aphasic participants was explored by analysing magnetic resonance scans. We discuss the implications of our findings for theoretical accounts of sentence production more generally, and of nonfluent aphasia in particular. More precisely, we propose that individuals with nonfluent aphasia are disproportionately reliant on activated lexical representations to drive the sentence generation process, an idea we call the Content Drives Structure (COST) hypothesis.</p>


2019 ◽  
pp. 774-792
Author(s):  
Keith F. Snider

This chapter explores the relationship of U.S. defense management to public administration. It argues that public administration, as a field of study, plays a minor role in defense acquisition, because acquisition has unique characteristics that separate it from the mainstream of the field. The tenuous connections between acquisition and public administration have led to an issue of academic legitimacy in that the discipline has failed to respond to the needs of acquisition professionals. The chapter then presents a discussion and illustration of philosophical pragmatism as a potential contribution of administrative theory to acquisition practice, and it concludes with thoughts on the potential for acquisition to adopt pragmatism as a guiding way for thought and practice.


1982 ◽  
Vol 141 (1) ◽  
pp. 30-36 ◽  
Author(s):  
I. Pilowsky ◽  
D. L. Bassett

SummaryThis paper explores the relationship between depression and chronic intractable pain in which somatic pathology is playing a minor role. In this study, 114 patients with chronic pain were compared with 53 patients with depression. Patients with chronic pain were older, more likely to be married, more frequently attributed difficulties in activity and sleep to pain, and reported greater impairment of motor functions. They had less dysphoria and an illness behaviour profile (on the Illness Behaviour Questionnaire) suggestive of a conversion reaction. Depressed patients recalled more life events in the year prior to presentation, whilst pain patients recalled more events of nine and ten years earlier. It is concluded that the two patient groups cannot be considered identical. It is argued that the concept of abnormal illness behaviour helps to distinguish the two groups.


2020 ◽  
Author(s):  
Cristian Guillermo Rodriguez ◽  
Shana Kushner Gadarian ◽  
Sara W. Goodman ◽  
Thomas Pepinsky

The COVID-19 pandemic has affected the lives of all Americans, but the severity of the pandemic has been experienced unevenly across space and time. Some states saw sharp rises in COVID-19 cases in early March, whereas case counts rose much later in the rest of the country. In this article, we examine the relationship between exposure to COVID-19 and citizens’ views on what type of measures are required to deal with the crises, and how experience with and exposure to COVID-19 is associated with greater partisan polarization. We find consistent evidence of partisan divergence in pandemic response policy preferences across the first six months of the COVID-19 pandemic: Republicans support national control measures whereas Democrats support welfare policies, and interparty differences grow over time. We find only limited evidence that exposure or experience moderates these partisan differences. Our findings are consistent with the view that Americans’ interpret the COVID-19 pandemic in fundamentally partisan manner, and that objective pandemic conditions play at most a minor role in shaping mass preferences.


Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2791
Author(s):  
Inês Henriques Vieira ◽  
Dírcea Rodrigues ◽  
Isabel Paiva

Vitamin D is a steroid hormone traditionally connected to phosphocalcium metabolism. The discovery of pleiotropic expression of its receptor and of the enzymes involved in its metabolism has led to the exploration of the other roles of this vitamin. The influence of vitamin D on autoimmune disease—namely, on autoimmune thyroid disease—has been widely studied. Most of the existing data support a relationship between vitamin D deficiency and a greater tendency for development and/or higher titers of antibodies linked to Hashimoto’s thyroiditis, Graves’ disease, and/or postpartum thyroiditis. However, there have also been some reports contradicting such relationships, thus making it difficult to establish a unanimous conclusion. Even if the existence of an association between vitamin D and autoimmune thyroid disease is assumed, it is still unclear whether it reflects a pathological mechanism, a causal relationship, or a consequence of the autoimmune process. The relationship between vitamin D’s polymorphisms and this group of diseases has also been the subject of study, often with divergent results. This text presents a review of the recent literature on the relationship between vitamin D and autoimmune thyroid disease, providing an analysis of the likely involved mechanisms. Our thesis is that, due to its immunoregulatory role, vitamin D plays a minor role in conjunction with myriad other factors. In some cases, a vicious cycle is generated, thus contributing to the deficiency and aggravating the autoimmune process.


2014 ◽  
Vol 9 (6) ◽  
pp. 1033-1039 ◽  
Author(s):  
Paola Zamparo ◽  
Ivan Zadro ◽  
Stefano Lazzer ◽  
Marco Beato ◽  
Luigino Sepulcri

Shuttle runs can be used to study the physiological responses in sports (such as basketball) characterized by sprints (accelerations/decelerations) and changes of direction.Purpose:To determine the energy cost (C) of shuttle runs with different turning angles and over different distances (with different acceleration/deceleration patterns).Methods:Nine basketball players were asked to complete 6 intermittent tests over different distances (5, 10, 25 m) and with different changes of direction (180° at 5 and 25 m; 0°, 45°, 90°, and 180° at 10 m) at maximal speed (v ≍ 4.5 m/s), each composed by 10 shuttle runs of 10-s duration and 30-s recovery; during these runs oxygen uptake (VO2), blood lactate (Lab), and C were determined.Results:For a given shuttle distance (10 m) no major differences where observed in VO2 (~33 mL · min−1 · kg−1), Lab (~3.75 mM), and C (~21.2 J · m−1 · kg−1) when the shuttle runs were performed with different turning angles. For a given turning angle (180°), VO2 and Lab were found to increase with the distance covered (VO2 from 26 to 35 mL · min−1 · kg−1; Lab from 0.7 to 7.6 mM) while C was found to decrease with it (from 29.9 to 10.6 J · m−1 · kg−1); the relationship between C and d (m) is well described by C = 92.99 × d0.656, R2 = .971.Conclusions:The metabolic demands of shuttle tests run at maximal speeds can be estimated based on the running distance, while the turning angle plays a minor role in determining C.


2015 ◽  
Vol 1 (3) ◽  
Author(s):  
Justas Kažys ◽  
Egidijus Rimkus ◽  
Julius Taminskas ◽  
Sigita Butkutė

The peatbogs are very unique and relatively vulnerable ecosystems for every kind of disturbances. This research analyses the relationships between groundwater level (GWL) fluctuations and meteorological conditions in Lithuanian peatbogs. Two case study areas (Čepkeliai and Rėkyva peatbogs) with permanent GWL monitoring points were investigated. The period from 2002 till 2011 was analysed in Čepkeliai and the period from 2011 till 2014 in Rėkyva. The final results indicate that rainfall is the most important factor determining the groundwater level fluctuations in the warm season, while temperature and evapotranspiration play only a minor role. The relationship between GWL and precipitation strongly depends on soil properties. The findings in Rėkyva revealed that the reactions of GWL on meteorological conditions in various parts of the  peatbogs were not the  same. Also, the analysis showed that the reaction of GWL on precipitation differs in cold and warm seasons.


2015 ◽  
Vol 28 (23) ◽  
pp. 9235-9249
Author(s):  
Li Yan ◽  
Gen Li

Abstract The southern subtropical dipole modes (SSDMs) and southern annular mode (SAM) are important climate modes, which are dominant in the southern middle and high latitudes, respectively, with considerable regional climatic impacts. However, the relationship between the two modes remains unclear. A close inspection reveals that the SAM was significantly correlated with the SSDMs during the austral summer before the mid-1980s. However, the correlations have degraded since then. This decadal shift in the relationship between these two southern dominant modes is due to a weakened connection between the SAM and the subtropical highs that control the SSDMs. This decadal change could be traced back to a poleward shift in the southern westerly belt. El Niño–Southern Oscillation (ENSO) typically plays a moderate role in influencing the precipitation in Australia and a minor role in influencing the precipitation in Africa and South America. Nevertheless, the two southern modes could still affect the austral summer rainfall in the midlatitudes, even though the ENSO signal is absent. All these links between the two southern modes and southern land precipitation may be attributable to the associated transport of moisture in the lower-level circulation.


Author(s):  
Keith F. Snider

This chapter explores the relationship of U.S. defense management to public administration. It argues that public administration, as a field of study, plays a minor role in defense acquisition, because acquisition has unique characteristics that separate it from the mainstream of the field. The tenuous connections between acquisition and public administration have led to an issue of academic legitimacy in that the discipline has failed to respond to the needs of acquisition professionals. The chapter then presents a discussion and illustration of philosophical pragmatism as a potential contribution of administrative theory to acquisition practice, and it concludes with thoughts on the potential for acquisition to adopt pragmatism as a guiding way for thought and practice.


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