A5089374509- Social and Intergroup Psychology
- Hate Speech and Cyberbullying Detection
- Psychology of Moral and Emotional Judgment
- Misinformation and Its Impacts
- Cultural Differences and Values
- Sentiment Analysis and Opinion Mining
- Mental Health via Writing
- Topic Modeling
- Social Media and Politics
- TGF-β signaling in diseases
- Multilingual Education and Policy
- Language, Metaphor, and Cognition
- Neurobiology of Language and Bilingualism
- Advanced Text Analysis Techniques
- Nonprofit Sector and Volunteering
- Terrorism, Counterterrorism, and Political Violence
- Crime Patterns and Interventions
- Cerebrovascular and genetic disorders
- T-cell and B-cell Immunology
- Monoclonal and Polyclonal Antibodies Research
- Ethics in Business and Education
- Tourism, Volunteerism, and Development
- Death Anxiety and Social Exclusion
- Immunotherapy and Immune Responses
- Interconnection Networks and Systems
University of Southern California
2016-2023
Alpine Immune Sciences (United States)
2018-2020
Southern California University for Professional Studies
2017-2019
City, University of London
2018
Amgen (United States)
2012
Does sharing moral values encourage people to connect and form communities? The importance of homophily (love same) has been recognized by social scientists, but the types similarities that drive this phenomenon are still unknown. Using both large-scale, observational social-media analyses behavioral lab experiments, authors investigated which influence tie formations. Analysis a corpus over 700,000 tweets revealed distance between 2 in social-network can be predicted based on differences...
Research has shown that accounting for moral sentiment in natural language can yield insight into a variety of on- and off-line phenomena such as message diffusion, protest dynamics, social distancing. However, measuring is challenging, the difficulty this task exacerbated by limited availability annotated data. To address issue, we introduce Moral Foundations Twitter Corpus, collection 35,108 tweets have been curated from seven distinct domains discourse hand at least three trained...
Endoglin (ENG), a co-receptor for several TGFβ-family cytokines, is expressed in dividing endothelial cells alongside ALK1, the ACVRL1 gene product. ENG and are both required angiogenesis mutations either associated with Hereditary Hemorrhagic Telangectasia, rare genetic vascular disorder. ALK1 function same pathway but relative contribution of TGFβ BMP9 to SMAD1/5/8 activation requirement as co-mediator SMAD phosphorylation remain debated. Here, we show that TGFβ1 induce distinct responses...
Abstract Drawing from a common lexicon of semantic units, humans fashion narratives whose meaning transcends that their individual utterances. However, while brain regions represent lower‐level such as words and sentences, have been identified, questions remain about the neural representation narrative comprehension, which involves inferring cumulative meaning. To address these questions, we exposed English, Mandarin, Farsi native speakers to language translations same stories during fMRI...
People use more positive words than negative words. Referred to as "linguistic positivity bias" (LPB), this effect has been found across cultures and languages, prompting the conclusion that it is a panhuman tendency. However, although multiple competing explanations of LPB have proposed, there still no consensus on what mechanism(s) generate or even whether driven primarily by universal cognitive features environmental factors. In work we propose remained unresolved because previous...
Do appeals to moral values promote charitable donation during natural disasters? Using Distributed Dictionary Representation, we analyze tweets posted Hurricane Sandy explore associations between and sentiment. We then derive hypotheses from the observed test these across a series of preregistered experiments that investigate effects framing on perceived motivation (Studies 2 & 3), hypothetical (Study 4), real behavior 5). Overall, find consistent positive care loyalty with sentiment...
Research has shown that accounting for moral sentiment in natural language can yield insight into a variety of on- and off-line phenomena, such as message diffusion, protest dynamics, social distancing. However, measuring is challenging the difficulty this task exacerbated by limited availability annotated data. To address issue, we introduce Moral Foundations Twitter Corpus, collection 35,108 tweets have been curated from seven distinct domains discourse hand-annotated at least three...
Abstract Understanding motivations underlying acts of hatred are essential for developing strategies to prevent such extreme behavioral expressions prejudice (EBEPs) against marginalized groups. In this work, we investigate the EBEPs as a function moral values. Specifically, propose may often be best understood morally motivated behaviors grounded in people’s values and perceptions violations. As evidence, report five studies that integrate spatial modeling experimental methods relationship...
We address the problem of detecting expressions moral values in tweets using content analysis. This is a particularly challenging because are often only implicitly signaled language, and contain little contextual information due to length constraints. To these obstacles, we present novel approach automatically acquire background knowledge from an external base enrich input texts thus improve value prediction. By combining basic textual features with knowledge, our overall context-aware...
We present the Gab Hate Corpus (GHC), consisting of 27,665 posts from social network service gab.com, each annotated for presence “hate-based rhetoric” by a minimum three annotators. Posts were labeled according to coding typology derived synthesis hate speech definitions across legal precedent, previous typologies, and psychology sociology, comprising hierarchical labels indicating dehumanizing violent as well indicators targeted groups rhetorical framing. provide inter-annotator agreement...
Infectious diseases have been an impending threat to the survival of individuals and groups throughout our evolutionary history. As a result, humans developed psychological pathogen-avoidance mechanisms societal norms that respond presence disease-causing microorganisms in environment. In this work, we demonstrate morality plays central role cultural architectures help avoid pathogens. We present collection studies which together provide integrated understanding socio-ecological impacts...
Humans use language toward hateful ends, inciting violence and genocide, intimidating denigrating others based on their identity. Despite efforts to better address the of hate in public sphere, psychological processes involved remain unclear. In this work, we hypothesize that morality are concomitant language. a series studies, find evidence support hypothesis using from diverse array contexts, including propaganda inspire genocide (Study 1), slurs as they occur large text corpora across...
The geographic distribution of psychological constructs has long been an area focus for researchers. Recently, however, there increased interest in investigations the so-called subnational variables, which on localized groupings individuals within spatial units, such as counties or states. By estimating a given outcome (e.g., its state- county-level means), researchers have able to address questions about variation variety and investigate regional association between phenomena real-world...
Do appeals to moral values promote charitable donation during natural disasters? Using Distributed Dictionary Representation, we analyze tweets posted Hurricane Sandy explore associations between and sentiment. We then derive hypotheses from the observed test these across a series of preregistered experiments that investigate effects framing on perceived motivation (Studies 2 & 3), hypothetical (Study 4), real behavior 5). Overall, find consistent care loyalty with sentiment...
Abstract Meaning depends on context. This applies in obvious cases like deictics or sarcasm as well more subtle situations framing persuasion. One key aspect of this is the identity participants an interaction. Our interpretation utterance shifts based a variety factors, including personal history, background knowledge, and our relationship to source. While obviously incomplete model individual differences, demographic factors provide useful starting point allow us capture some variance....
Drawing from a common lexicon of semantic units, humans fashion narratives whose meaning transcends that their individual utterances. However, while brain regions represent lower-level such as words and sentences, have been identified, questions remain about the neural representation narrative comprehension, which involves inferring cumulative meaning. To address these questions, we exposed English, Mandarin Farsi native speakers to language translations same stories during fMRI scanning....
Acts of hate have been used to silence, terrorize, and erase marginalized social groups throughout history. The rising rates these behaviors in recent years underscores the importance developing a better understanding when, why, where they occur. In this work, we present program research that suggests acts may often be best understood not just as responses threat, but also morally motivated grounded people’s moral values perceptions violations. As evidence for claim, findings from five...
Language is a psychologically rich medium for human expression and communication. While language usage has been shown to be window into various aspects of people's social worlds, including their personality traits everyday environment, its correspondence moral concerns yet considered. Here, we examine the relationship between Care, Fairness, Loyalty, Authority, Purity as conceptualized by Moral Foundations Theory. We collected Facebook status updates (N = 107,798) from English-speaking...
Immunoglobulin superfamily member (IgSF) proteins play a significant role in regulating immune responses with surface expression on all cell subsets, making the IgSF an attractive family of for therapeutic targeting human diseases. We have developed directed evolution platform capable engineering domains to increase affinities cognate ligands and/or introduce binding non-cognate ligands. Using this scientific platform, ICOSL been derived enhanced ICOS and additional high-affinity receptor,...