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Institution

Georgia State University

EducationAtlanta, Georgia, United States
About: Georgia State University is a education organization based out in Atlanta, Georgia, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13988 authors who have published 35895 publications receiving 1164332 citations. The organization is also known as: GSU & Georgia State.


Papers
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Journal ArticleDOI
TL;DR: In this article, the authors report the results of an empirical study of the evolution of the mix off-ranchised and company-owned outlets in a large-scale chain restaurant chain.

339 citations

Journal ArticleDOI
TL;DR: Anticipating social evaluation from negatively perceived peers modulates amygdala and vlPFC engagement differentially in anxious and healthy adolescents.
Abstract: Context Amygdala and ventrolateral prefrontal cortex (vlPFC) dysfunction manifests in adolescents with anxiety disorders when they view negatively valenced stimuli in threatening contexts. Such fear-circuitry dysfunction may also manifest when anticipated social evaluation leads socially anxious adolescents to misperceive peers as threatening. Objective To determine whether photographs of negatively evaluated smiling peers viewed during anticipated social evaluation engage the amygdala and vlPFC differentially in adolescents with and without social anxiety. Design Case-control study. Setting Government clinical research institute. Participants Fourteen adolescents with anxiety disorders associated with marked concerns of social evaluation and 14 adolescents without a psychiatric diagnosis matched on sex, age, intelligence quotient, and socioeconomic status. Main Outcome Measures Blood oxygenation level–dependent signal measured with event-related functional magnetic resonance imaging. Before and during neuroimaging scans, participants anticipating social evaluation completed peer- and self-appraisals. Event-related analyses were tailored to participants' ratings of specific peers. Results Participants classified 40 pictures of same-age peers as ones with whom they did or did not want to engage in a social interaction. Anxious adolescents showed greater amygdala activation than healthy adolescents when anticipating evaluation from peers previously rated as undesired for an interaction. Psychophysiological interaction connectivity analyses also revealed a significant positive association between amygdala and vlPFC activation in anxious vs healthy adolescents in response to these stimuli. Conclusions Anticipating social evaluation from negatively perceived peers modulates amygdala and vlPFC engagement differentially in anxious and healthy adolescents. Amygdala and vlPFC dysfunction manifests in adolescent anxiety disorders in specific contexts of anticipated peer evaluation.

338 citations

Journal ArticleDOI
TL;DR: Virtual reality (VR) is reported to offer an engaging environment that is repetitive, safe, motivating, and gives task-specific feedback and may be used to improve sensory/motor recovery following stroke as an adjunct to standard care physical therapy.
Abstract: :Rationale:Many Americans live with physical functional limitations stemming from stroke These functional limitations can be reduced by task-specific training that is repetitive, motivating, and augmented with feedback Virtual reality (VR) is reported to offer an engaging environment that

338 citations

Journal ArticleDOI
TL;DR: The challenges of chemotherapy for human African trypanosomiasis (HAT) are discussed, and the few drugs registered for use against the disease are unsatisfactory for a number of reasons.
Abstract: This review discusses the challenges of chemotherapy for human African trypanosomiasis (HAT). The few drugs registered for use against the disease are unsatisfactory for a number of reasons. HAT has two stages. In stage 1 the parasites proliferate in the haemolymphatic system. In stage 2 they invade the central nervous system and brain provoking progressive neurological dysfunction leading to symptoms that include the disrupted sleep wake patterns that give HAT its more common name of sleeping sickness. Targeting drugs to the central nervous system offers many challenges. However, it is the cost of drug development for diseases like HAT, that afflict exclusively people of the world's poorest populations, that has been the principal barrier to new drug development and has led to them becoming neglected. Here we review drugs currently registered for HAT, and also discuss the few compounds progressing through clinical trials. Finally we report on new initiatives that might allow progress to be made in developing new and satisfactory drugs for this terrible disease.

338 citations

Journal ArticleDOI
TL;DR: There is a need for more work examining developmental changes in the amygdala's response to fearful faces and in amygdala functional connectivity during face processing, according to prior research on amygdala function and development.
Abstract: Several lines of evidence implicate the amygdala in face-emotion processing, particularly for fearful facial expressions. Related findings suggest that face-emotion processing engages the amygdala within an interconnected circuitry that can be studied using a functional-connectivity approach. Past work also underscores important functional changes in the amygdala during development. Taken together, prior research on amygdala function and development reveals a need for more work examining developmental changes in the amygdala's response to fearful faces and in amygdala functional connectivity during face processing. The present study used event-related functional magnetic resonance imaging to compare 31 adolescents (9--17 years old) and 30 adults (21--40 years old) on activation to fearful faces in the amygdala and other regions implicated in face processing. Moreover, these data were used to compare patterns of amygdala functional connectivity in adolescents and adults. During passive viewing, adolescents demonstrated greater amygdala and fusiform activation to fearful faces than did adults. Functional connectivity analysis revealed stronger connectivity between the amygdala and the hippocampus in adults than in adolescents. Within each group, variability in age did not correlate with amygdala response, and sex-related developmental differences in amygdala response were not found. Eye movement data collected outside of the magnetic resonance imaging scanner using the same task suggested that developmental differences in amygdala activation were not attributable to differences in eye-gaze patterns. Amygdala hyperactivation in response to fearful faces may explain increased vulnerability to affective disorders in adolescence; stronger amygdala-hippocampus connectivity in adults than adolescents may reflect maturation in learning or habituation to facial expressions.

337 citations


Authors

Showing all 14161 results

NameH-indexPapersCitations
Paul M. Thompson1832271146736
Michael Tomasello15579793361
Han Zhang13097058863
David B. Audretsch12667172456
Ian O. Ellis126105175435
John R. Perfect11957352325
Vince D. Calhoun117123462205
Timothy E. Hewett11653149310
Kenta Shigaki11357042914
Eric Courchesne10724041200
Cynthia M. Bulik10771441562
Shaker A. Zahra10429363532
Robin G. Morris9851932080
Richard H. Myers9731654203
Walter H. Kaye9640330915
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202353
2022291
20212,013
20201,977
20191,744
20181,663