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1.
Law Hum Behav ; 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39264643

RESUMEN

OBJECTIVE: Algorithmic decision making (ADM) takes on increasingly complex tasks in the criminal justice system. Whereas new developments in machine learning could help to improve the quality of judicial decisions, there are legal and ethical concerns that thwart the widespread use of algorithms. Against the backdrop of current efforts to promote the digitization of the German judicial system, this research investigates motivational factors (pragmatic motives, fairness concerns, and self-image-related considerations) that drive or impede the acceptance of ADM in court. HYPOTHESES: We tested two hypotheses: (1) Perceived threat of inequality in legal judgments increases ADM acceptance, and (2) experts (judges) are more skeptical toward technological innovation than novices (general population). METHOD: We conducted a preregistered experiment with 298 participants from the German general population and 267 judges at regional courts in Bavaria to study how inequality threat (vs. control) relates to ADM acceptance in court, usage intentions, and attitudes. RESULTS: In partial support of the first prediction, inequality threat increased ADM acceptance, effect size d = 0.24, 95% confidence interval (CI) [0.01, 0.47], and usage intentions (d = 0.23, 95% CI [0.00, 0.46]) of laypeople. Unexpectedly, however, this was not the case for experts. Moreover, ADM attitudes remained unaffected by the experimental manipulation in both groups. As predicted, judges held more negative attitudes toward ADM than the general population (d = -0.71, 95% CI [-0.88, -0.54]). Exploratory analysis suggested that generalized attitudes emerged as the strongest predictor of judges' intentions to use ADM in their own court proceedings. CONCLUSIONS: These findings elucidate the motivational forces that drive algorithm aversion and acceptance in a criminal justice context and inform the ongoing debate about perceptions of fairness in human-computer interaction. Implications for judicial praxis and the regulation of ADM in the German legal framework are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

2.
J Appl Soc Psychol ; 2022 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-36249315

RESUMEN

Although most protective behaviors related to the COVID-19 pandemic come with personal costs, they will produce the largest benefit if everybody cooperates. This study explores two interacting factors that drive cooperation in this tension between private and collective interests. A preregistered experiment (N = 299) examined (a) how the quality of the relation among interacting partners (social proximity), and (b) how focusing on the risk of self-infection versus onward transmission affected intentions to engage in protective behaviors. The results suggested that risk focus was an important moderator of the relation between social proximity and protection intentions. Specifically, participants were more willing to accept the risk of self-infection from close others than from strangers, resulting in less caution toward a friend than toward a distant other. However, when onward transmission was the primary concern, participants were more reluctant to effect transmission to close others, resulting in more caution toward friends than strangers. These findings inform the debate about effective nonclinical measures against the pandemic. Practical implications for risk communication are discussed.

3.
Acta Psychol (Amst) ; 221: 103440, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34717256

RESUMEN

Anticipation of one's own actions' effects drives goal-directed behavior. In multitasking environments, the learning of stable action-effect associations seems particularly important, because establishing reliable response-effect associations for multiple competing tasks may help to differentiate between these tasks and thereby improve task-switching performance. Action-effects not only have cognitive, but also motivational aspects and often the consequences of our actions are hedonically marked. Thus, the anticipated hedonic quality of action-effects may also become part of the task representation, and positive and negative affect may distinctly modulate task-switching performance. We report a pre-registered experiment (N = 120) designed to examine how positive, negative, and neutral valence of action-effects impact performance in a cued task-switching paradigm. Pictures from the IAPS database were used to manipulate the action-effects' valence. Affective valence determined reaction times: participants who learned positive or negative action-effects responded faster than participants in the control condition. In particular, task-switch trials were faster in both conditions than in the control condition, while task-repetition trials were comparable across valence conditions. Our results further suggest that performance improvements in the positive and negative valence conditions occurred for different reasons. Negative action-effects expedited responses specifically for the task that produced the unpleasant outcome, while positive affect more generally promoted performance of both tasks. These findings point toward distinct roles of positive and negative valence of action-effects in regulating multitasking performance.


Asunto(s)
Señales (Psicología) , Motivación , Humanos , Tiempo de Reacción
4.
Front Psychol ; 11: 1222, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32636781

RESUMEN

Moral dilemmas often concern actions that involve causing harm to others in the attempt to prevent greater harm. But not all actions of this kind are equal in terms of their moral evaluation. In particular, a harm-causing preventive action is typically regarded as less acceptable if the harm is a means to achieve the goal of preventing greater harm than if it is a foreseen but unintended side-effect of the action. Likewise, a harm-causing preventive action is typically deemed less acceptable if it directly produces the harm than if it merely initiates a process that brings about the harmful consequence by its own dynamics. We report three experiments that investigated to which degree these two variables, the instrumentality of the harm (harm as means vs. side-effect; Experiments 1, 2, and 3) and personal force (personal vs. impersonal dilemmas; Experiments 2 and 3) influence deontological (harm-rejection) and utilitarian (outcome-maximization) inclinations that have been hypothesized to underly moral judgments in harm-related moral dilemmas. To measure these moral inclinations, the process dissociation procedure was used. The results suggest that the instrumentality of the harm and personal force affect both inclinations, but in opposite ways. Personal dilemmas and dilemmas characterized by harm as a means evoked higher deontological tendencies and lower utilitarian tendencies, than impersonal dilemmas and dilemmas where the harm was a side-effect. These distinct influences of the two dilemma conceptualization variables went undetected if the conventional measure of moral inclinations, the proportion of harm-accepting judgments, was analyzed. Furthermore, although deontological and utilitarian inclinations were found to be largely independent overall, there was some evidence that their correlation depended on the experimental conditions.

5.
Nat Commun ; 11(1): 1733, 2020 04 07.
Artículo en Inglés | MEDLINE | ID: mdl-32265441

RESUMEN

Dysregulation of extracellular signal-regulated kinases (ERK1/2) is linked to several diseases including heart failure, genetic syndromes and cancer. Inhibition of ERK1/2, however, can cause severe cardiac side-effects, precluding its wide therapeutic application. ERKT188-autophosphorylation was identified to cause pathological cardiac hypertrophy. Here we report that interference with ERK-dimerization, a prerequisite for ERKT188-phosphorylation, minimizes cardiac hypertrophy without inducing cardiac adverse effects: an ERK-dimerization inhibitory peptide (EDI) prevents ERKT188-phosphorylation, nuclear ERK1/2-signaling and cardiomyocyte hypertrophy, protecting from pressure-overload-induced heart failure in mice whilst preserving ERK1/2-activity and cytosolic survival signaling. We also examine this alternative ERK1/2-targeting strategy in cancer: indeed, ERKT188-phosphorylation is strongly upregulated in cancer and EDI efficiently suppresses cancer cell proliferation without causing cardiotoxicity. This powerful cardio-safe strategy of interfering with ERK-dimerization thus combats pathological ERK1/2-signaling in heart and cancer, and may potentially expand therapeutic options for ERK1/2-related diseases, such as heart failure and genetic syndromes.


Asunto(s)
Cardiotoxicidad , Péptidos de Penetración Celular/farmacología , Dimerización , Quinasas MAP Reguladas por Señal Extracelular/metabolismo , Sistema de Señalización de MAP Quinasas , Animales , Técnicas de Cultivo de Célula , Péptidos de Penetración Celular/síntesis química , Péptidos de Penetración Celular/toxicidad , Neoplasias del Colon/tratamiento farmacológico , Neoplasias del Colon/metabolismo , Sistemas de Liberación de Medicamentos , Quinasas MAP Reguladas por Señal Extracelular/efectos de los fármacos , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/metabolismo , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/metabolismo , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Sistema de Señalización de MAP Quinasas/fisiología , Ratones , Ratones Endogámicos C57BL , Medicina Molecular , Ratas , Ratas Sprague-Dawley , Transducción de Señal
6.
J Proteome Res ; 19(2): 805-818, 2020 02 07.
Artículo en Inglés | MEDLINE | ID: mdl-31902209

RESUMEN

Nonenzymatic post-translational protein modifications (nePTMs) affect the nutritional, physiological, and technological properties of proteins in food and in vivo. In contrast to the usual targeted analyses, the present study determined nePTMs in processed milk in a truly untargeted proteomic approach. Thus, it was possible to determine to which extent known nePTM structures explain protein modifications in processed milk and to detect and identify novel products. The method combined ultrahigh-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry with bioinformatic data analysis by the software XCMS. The nePTMs detected by untargeted profiling of a ß-lactoglobulin-lactose model were incorporated in a sensitive scheduled multiple reaction monitoring method to analyze these modifications in milk samples and to monitor their reaction kinetics during thermal treatment. Additionally, we identified the structures of unknown modifications. Lactosylation, carboxymethylation, formylation of lysine and N-terminus, glycation of arginine, oxidation of methionine, tryptophan, and cysteine, oxidative deamination of N-terminus, and deamidation of asparagine and glutamine were the most important reactions of ß-lactoglobulin during milk processing. The isomerization of aspartic acid was observed for the first time in milk products, and N-terminal 4-imidazolidinone was identified as a novel nePTM.


Asunto(s)
Proteínas de la Leche , Leche , Lactoglobulinas , Leche/metabolismo , Proteínas de la Leche/metabolismo , Procesamiento Proteico-Postraduccional , Proteómica
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