On the Evolution of Lactase Persistence in Humans (VSports)

Detecting shared independent selection (V体育安卓版)

Harris1, Rogers2 2020Preprint0000Get access via publisherAdd to dashboardCite Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task VSports app下载. Show abstract Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task. show abstract“…Lactase is known to have been under recent selection in several geographic regions (Ségurel and Bon, 2017), but the genetic cause is thought to have a single origin in Europe. The results from iHS support this previous finding. …”Section: Discussionmentioningconfidence: 99%

Detecting shared independent selection

Harris1, Rogers2 2020Preprint0000Get access via publisherAdd to dashboardCite Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task. Show abstract Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task. show abstract“…For example, there is some evidence to suggest that the lactase persistence allele located in a regulatory region of the LCT gene -one of the best-known examples of positive selection in humans [68,69] -was perhaps introduced into Western Eurasia via eastward migrations by steppe hereder populations [65,70] . However, the evidence for this hypothesis is still scant, and more ancient sequences will be needed to determine with certainty exactly how this occurred, if it occurred at all [68] . …”Section: Other Admixture Events In Human Evolutionmentioningconfidence: 99%“…For example, there is some evidence to suggest that the lactase persistence allele located in a regulatory region of the LCT gene -one of the best-known examples of positive selection in humans [68,69] -was perhaps introduced into Western Eurasia via eastward migrations by steppe hereder populations [65,70] . However, the evidence for this hypothesis is still scant, and more ancient sequences will be needed to determine with certainty exactly how this occurred, if it occurred at all [68] . The increasing availability of ancient and present-day human genomes from Africa will also make it easier to study admixture patterns between modern African populations [71] , or between present-day and archaic human groups in Africa [72][73][74] (Figure 1). As the bulk of human evolution happened in this continent, it will not be surprising to find cases of introgression -and adaptive introgression -between different African human groups, once ancient DNA from Africa becomes more readily available. …”mentioningconfidence: 99%

Something old, something borrowed: Admixture and adaptation in human evolution

Dannemann1, Racimo2 2018Preprint230300Get access via publisherAdd to dashboardCite Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task. Show abstract Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task. show abstract“…Durch die Mutation eines regulatorischen Gens blieb die Laktaseproduktion auch im Erwachsenenalter erhalten (Laktasepersistenz) und erlaubte einen weitgehend beschwerdefreien Milchkonsum (die zweite Erfahrung). Heute sind 70 Prozent bis über 90 Prozent der Europäer laktosetolerant, und es haben sich zusätzlich weitere Genotypen mit gleichem Phänotyp im Mittleren Osten und Afrika etabliert . Die Selektion der Mutation in der europäischen Bevölkerung war eng mit der Haltung und Züchtung von Rindern korreliert , Milch spielte hier offenbar eine bedeutende Rolle für die Ernährung. …”Section: Lactobacillus Und Menschunclassified

Lactobacillus – Evolution und Kulturgeschichte

Engelhardt1 2018Biologie in unserer Zeit0000Get access via publisherAdd to dashboardCite Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task. Show abstract Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task. show abstractScite is an AI-powered research tool that helps researchers better discover and evaluate scientific literature through Smart Citations—a revolutionary system that shows whether articles support, contrast, or simply mention a given claim. Founded in 2018, and now part of Research Solutions, Scite has indexed over 1. 4 billion citations and partnered with more than 30 major publishers to provide researchers with unparalleled access to scientific literature. With its Scite Assistant, Smart Citation Index, and advanced search capabilities, the platform addresses critical challenges such as information overload and research reproducibility. Trusted by two million active users worldwide, Scite is reshaping how researchers interact with scholarly content—building ethical, transparent AI tools that support rigorous, copyright-compliant research.