The foreign language effect on decision-making: A meta-analysis

From error to insight: Removing non-systematic responding data in the delay discounting task may introduce systematic bias

Delay discounting (DD), which reflects a tendency to devalue rewards as the time to their receipt increases, is associated with health behaviors such as sleep disturbances, obesity, and externalizing behavior among adolescents. Response patterns characterized by inconsistent or unexpected reward valuation, called non-systematic responding (NSR), may also predict health outcomes. Many researchers flag and exclude NSR trials prior to analysis, which could lead to systematic bias if NSR (a) varies by demographic characteristics or (b) predicts health outcomes. Thus, in this study we characterized NSR and examined its potential beyond error by comparing it against DD with a secondary data analysis of the Adolescent Brain Cognitive Development (ABCD) Study-a population-based study that tracked youths (N = 11,948) annually from 8 to 11 years of age over 4 years. We assessed DD and NSR using the Adjusting Delay Discounting Task when youths were approximately 9.48 years old (SD = 0.51). We also examined three maladaptive health outcomes annually: sleep disturbances, obesity, and externalizing psychopathology. Our analysis revealed variations in NSR across races, ethnicities, and body mass index categories, with no significant differences observed by sex or gender. Notably, NSR was a stronger predictor of obesity and externalizing psychopathology than DD and inversely predicted the growth trajectory of obesity. These findings suggest that removing NSR patterns could systematically bias analyses given that NSR may capture unexplored response variability. This study demonstrates the significance of NSR and underscores the necessity for further research on how to manage NSR in future DD studies.

Elucidating the emotional persona in the Romanian university students' academic discourse: a corpus-based exploration

Introduction

Despite growing global interest in the emotional dimensions of academic writing, Romanian academic discourse remains underexplored, particularly in multilingual contexts. This study addresses this gap by analyzing a bilingual corpus of texts written in Romanian (L1) and English (L2) across various disciplines and genres. It aims to uncover emotional dimensions conveyed through linguistic markers, exploring how language, culture, and academic context shape students' writing styles. Romania's historical and social emphasis on formality, hierarchy, and indirectness in communication serves as a backdrop for examining these dynamics.

Method

A corpus-based approach was adopted, utilizing the Linguistic Inquiry and Word Count 2015 (LIWC2015) tool to analyze linguistic and emotional markers. The bilingual ROGER corpus, containing texts from nine Romanian universities spanning multiple disciplines and genres, served as the dataset. Advanced data analysis techniques included supervised machine learning for language classification, network analysis to explore interactions among linguistic features, and cluster analysis to detect discipline- and genre-specific linguistic patterns.

Results

The findings reveal distinct emotional patterns between Romanian and English academic writing. Romanian texts exhibit a higher degree of formality and indirectness, while English texts reflect greater assertiveness and personal engagement. Additionally, the Romanian corpus demonstrates less linguistic cohesion and a broader range of writing styles. Genre- and discipline-specific trends also emerge, with English coursework and analytical writing, predominantly from social sciences, displaying more personal and emotional expression than research-focused texts. In contrast, the Romanian corpus, characterized by a third cluster, presents less clear-cut patterns: humanities texts span both emotionally expressive and neutral tones, while research and academic papers frequently exhibit an achievement-oriented or entrepreneurial style, though a significant subset also reflects a highly disengaged profile.

Discussion

By integrating machine learning, network analysis, and automatic language analysis, this study offers a novel perspective on how language, genre, and discipline-specific conventions shape emotional expression in academic writing. The results suggest that the Romanian students' emotional personas in academic writing are influenced by all these factors, potentially shaped by the cultural norms of the second language, providing insights for teaching academic writing in multilingual settings.

Does perceptual disfluency affect the illusion of causality?

When a subjective experience of difficulty is associated with a mental task, people tend to engage in systematic and deliberative reasoning, which can reduce the usage of intuitive and effortless thinking that gives rise to cognitive biases. One such bias is the illusion of causality, where people perceive a causal link between two unrelated events. In 2019, Díaz-Lago and Matute found that a superficial perceptual feature of the task could modulate the magnitude of the illusion (i.e., a hard-to-read font led to a decrease in the magnitude of the illusion). The present study explored the generalisability of the idea that perceptual disfluency can lead to a decrease in the magnitude of the illusion. In the first experiment, we tested whether a physical-perceptual manipulation of the stimuli, specifically the contrast between the written text and the background, could modulate the illusion in a contingency learning task. The results of the online experiment (N = 200) showed no effect of contrast on the magnitude of the illusion, despite our manipulation having successfully induced task fluency or disfluency. Building upon this null result, our second experiment (N = 100) focused on manipulating the font type, in an attempt to replicate the results obtained by Díaz-Lago and Matute. In contrast to their findings, we found no discernible effect of font type on the magnitude of the illusion, even though this manipulation also effectively induced variations in task fluency or disfluency. These results underscore the notion that not all categories of (dis)fluency in cognitive processing wield a modulatory influence on cognitive biases, and they call for a re-evaluation and a more precise delineation of the (dis)fluency construct.

Comparing pragmatic abilities across multiple languages in adults with ADHD: Insights from a self-report questionnaire

Attention-Deficit/Hyperactivity Disorder (ADHD) is associated with pragmatic language impairments in children, but less is known about the communicative abilities of adults with ADHD, especially when using a second or third language. In this study, we developed a questionnaire to collect self-report measures of a set of pragmatic skills in a person's first, second and third language, comparing adults with and without an ADHD diagnosis. One hundred seventy-nine multilingual adults with (N = 91) and without ADHD (N = 88) completed the survey. As predicted, adults with ADHD reported more pragmatic difficulties than the control group. More specifically, people with ADHD showed pronounced impairments in regulating their behaviour in spoken interactions in the form of excessive talking, frequently interrupting others, and speaking without thinking first. Notably, these types of hyperactive and impulsive behaviours were significantly reduced when people with ADHD communicated in a second or third language. For pragmatic difficulties related to inattention such as concentrating on a conversation, both groups tended to be more inattentive in their third language compared to their first and second language. The understanding of non-literal language was only affected by ADHD in the first language and was generally more taxing in a language with lower proficiency levels. Our study contributes to a more nuanced understanding of how ADHD affects different kinds of communicative abilities in multilingual adults. It also has implications for clinical practice, highlighting the importance of assessing symptoms of inattention, hyperactivity, and impulsivity in a person's dominant language.

Foreign-language effects in cross-cultural behavioral research: Evidence from the Tanzanian Hadza

Behavioral research in traditional subsistence populations is often conducted in a non-native language. Recent studies show that non-native language-use systematically influences behavior, including in widely used methodologies. However, such studies are largely conducted in rich, industrialized societies, using at least one European language. This study expands sample diversity. We presented four standard tasks-a "dictator" game, two sacrificial dilemmas, a wager task, and five Likert-risk tolerance measures-to 129 Hadza participants. We randomly varied study languages-Hadzane and Kiswahili-between participants. We report a moderate impact of study language on wager decisions, alongside a substantial effect on dilemma decisions and responses to Likert-assessments of risk. As expected, non-native languages fostered utilitarian choices in sacrificial dilemmas. Unlike previous studies, non-native-language-use decreased risk preference in wager and Likert-tasks. We consider alternative explanatory mechanisms to account for this reversal, including linguistic relativity and cultural context. Given the strength of the effects reported here, we recommend, where possible, that future cross-cultural research should be conducted in participants' first language.

The effect of cognitive load, ego depletion, induction and time restriction on moral judgments about sacrificial dilemmas: a meta-analysis

Greene's influential dual-process model of moral cognition (mDPM) proposes that when people engage in Type 2 processing, they tend to make consequentialist moral judgments. One important source of empirical support for this claim comes from studies that ask participants to make moral judgments while experimentally manipulating Type 2 processing. This paper presents a meta-analysis of the published psychological literature on the effect of four standard cognitive-processing manipulations (cognitive load; ego depletion; induction; time restriction) on moral judgments about sacrificial moral dilemmas [n = 44; k = 68; total N = 14, 003; M(N) = 194.5]. The overall pooled effect was in the direction predicted by the mDPM, but did not reach statistical significance. Restricting the dataset to effect sizes from (high-conflict) personal sacrificial dilemmas (a type of sacrificial dilemma that is often argued to be best suited for tests of the mDPM) also did not yield a significant pooled effect. The same was true for a meta-analysis of the subset of studies that allowed for analysis using the process dissociation approach [n = 8; k = 12; total N = 2, 577; M(N) = 214.8]. I argue that these results undermine one important line of evidence for the mDPM and discuss a series of potential objections against this conclusion.

Bilinguals on the footbridge: the role of foreign-language proficiency in moral decision making

Socio-cognitive research on bilinguals points to a moral foreign-language effect (MFLE), with more utilitarian choices (e.g., sacrificing someone to save more people) for moral dilemmas presented in the second language (L2) relative to the first language. Yet, inconsistent results highlight the influence of subject-level variables, including a critical underexplored factor: L2 proficiency (L2p). Here we provide a systematic review of 57 bilingualism studies on moral dilemmas, showing that L2p rarely modulates responses to impersonal dilemmas, but it does impact personal dilemmas (with MFLEs proving consistent at intermediate L2p levels but unsystematic at high L2p levels). We propose an empirico-theoretical framework to conceptualize such patterns, highlighting the impact of L2p on four affective mediating factors: mental imagery, inhibitory control, prosocial behavior and numerical processing. Finally, we outline core challenges for the field. These insights open new avenues at the crossing of bilingualism and social cognition research.

Reduced false memory in the second language of Turkish-English bilinguals

In the Deese-Roediger-McDermott (DRM) paradigm, studying a list of semantically related words leads to false memory for the critical non-studied word that is related to all the words in the study list. Previous studies questioning whether bilinguals are more prone to false memory in their first language (L1) or second language (L2) in the DRM paradigm revealed mixed results. The present study investigated the same question with Turkish-English bilinguals. The revised hierarchical model proposes that the link between the lexicon and the semantic system is weaker in L2 than in L1, suggesting that false memory in the DRM paradigm that relies on semantic relatedness would be higher in L1 than in L2. Furthermore, previous studies showed that L2 is more resistant to errors in decision-making when the two languages are dissimilar, but not when they are similar, and Turkish and English are historically distant and typologically dissimilar languages. We tested Turkish-English bilingual participants whose L1 is Turkish with Turkish and English DRM word lists that had similar prior norms for generating false recognition. In the recognition test, some of the studied items and the critical non-studied items were presented and participants identified the studied items. False recognition for the critical non-studied items was lower and correct recognition for studied items was higher in L2 than in L1. The results suggest that L2 is more resistant to false memory due to its weaker lexicon and semantic system associations, at least when the two languages spoken by the bilingual are dissimilar.

Influence of Social Distance on Foreign Language Effect in Moral Judgment

Previous research has shown that moral choice depends on language, a phenomenon known as the moral foreign language effect (mFLE). The current study examines the influence of social distance on the mFLE. In Experiment 1, 200 participants were randomly assigned to either close or distant social distance in English or Chinese. In Experiment 2, 188 participants were randomly assigned to either English or Chinese and were presented with eight moral dilemmas, each with five different levels of social distance. After reading the dilemma, participants made a choice on a binary scale (Yes/No) in both Experiments 1 and 2 or on a more sensitive 100-point scale in Experiment 2. The results showed that the mFLE was present in distant social distance but absent in close social distance. Finally, a meta-analysis of the results from both studies confirmed the effect of social distance on the mFLE. These findings demonstrate that social distance might play an important role in moderating the mFLE in moral judgment.

Foreign and Regional Languages Make You Less Deontological

Previous studies have shown that foreign languages can change people's responses to moral dilemmas, making them more likely to choose harm (e.g., to kill one individual in order to save a few lives). Regional languages have also been shown to make sacrificial choices more likely. Regional languages are typically acquired early and used routinely among family and acquaintances, thus differing from foreign languages that are typically acquired later and used rather sporadically. Using a process dissociation procedure, we show in the present study that regional and foreign languages weaken the contribution of the deontological view in similar ways. Furthermore, the effects of both languages were modulated by proficiency, so that less proficient bilinguals showed a stronger decrease of the deontological tendency. These similarities suggest that the effects induced by both languages stem from what these languages have in common. Both languages are not experienced in contexts critical in forging moral views (e.g., public institutions, media, schools). We propose that the effects of foreign and regional languages stem from the lack of experience in such contexts.

Will Using a Foreign Language Attenuate the Neophobia?

In two experiments, we tested whether using a foreign language attenuates neophobia at the lexical (Experiment 1) and discoursal (Experiment 2) levels in comparison to using a native language. A total of 687 native Chinese speakers participated in Experiment 1, and 693 in Experiment 2. All of them learned English as a foreign language. They performed paper-and-pencil tasks for measuring their neophobia toward innovative products described in either Chinese or English at the lexical and discoursal levels. Our results suggest that using a foreign language at the discoursal levels can obviously attenuate the neophobia toward innovative products. Moreover, Dual-process Model could explain the mechanisms of neophobic attenuation induced by foreign language use.

Language Nativeness Modulates Physiological Responses to Moral vs. Immoral Concepts in Chinese-English Bilinguals: Evidence from Event-Related Potential and Psychophysiological Measures

Morality has been an integral part of social cognition and our daily life, and different languages may exert distinct impacts on human moral judgment. However, it remains unclear how moral concept is encoded in the bilingual brain. This study, therefore, aimed to explore the emotional and cognitive involvement of bilingual morality judgement by using combined event-related potential (ERP) and psychophysiological (including skin, heart, and pulse) measures. In the experiment, thirty-one Chinese-English bilingual participants were asked to make moral judgments in Chinese and English, respectively. Our results revealed increased early frontal N400 and decreased LPC in L1 moral concept encoding as compared to L2, suggesting that L1 was more reliant on automatic processes and emotions yet less on elaboration. In contrast, L2 moral and immoral concepts elicited enhanced LPC, decreased N400, and greater automatic psychophysiological electrocardiograph responses, which might reflect more elaborate processing despite blunted emotional responses and increased anxiety. Additionally, both behavioral and P200 data revealed a reliable immorality bias across languages. Our results were discussed in light of the dual-process framework of moral judgments and the (dis)embodiment of bilingual processing, which may advance our understanding of the interplay between language and morality as well as between emotion and cognition.

Are people really less moral in their foreign language? Proficiency and comprehension matter for the moral foreign language effect in Russian speakers

Previous work has demonstrated that people are more willing to sacrifice one person to save five in a foreign language (FL) than in their native tongue. This may be due to the FL either reducing concerns about sacrificial harm (deontological inclinations) or increasing concerns about overall outcomes (utilitarian inclinations). Moreover, proficiency in a foreign language (FL) may moderate results. To test these possibilities, we investigated the moral foreign language effect (MFLE) in a novel sample of Russian L1/English FL speakers. We employed process dissociation (PD)-a technique that independently assesses concerns about rejecting harm and maximizing outcomes in sacrificial dilemmas, and we assessed measures of objective and subjective foreign language proficiency and of dilemma comprehension. Results replicated the pattern of increased acceptance of sacrificial harm in FL demonstrated in earlier studies, but a PD analysis showed no evidence of increased concerns for utilitarian outcomes in a FL; instead, this pattern was driven by reduced concerns regarding sacrificial harm. However, people who reported better dilemma comprehension in the FL demonstrated both stronger deontological and utilitarian responding, and people with higher objective proficiency displayed stronger utilitarian responding in the FL than those with lower proficiency. These findings show that utilitarian inclinations are affected by reading dilemmas in a foreign language mainly in low-proficiency speakers, and that while emotional concerns for sacrifice are reduced in FL, better comprehension can increase such concerns as well as concern for outcomes.

Why Should We Study the Foreign Language Effect: Debiasing through Affecting Metacognition?

Debiasing is a method of improving people's decisions by reducing their reliance on salient intuitions causing them to behave suboptimally or biasedly. However, many of the known debiasing techniques have limited effectiveness or can only remedy a one-shot decision, rather than having a lasting impact. In this work, I focus on the role of metacognition in debiasing decision-making and discuss how it can be better understood through the lens of the foreign language effect. The foreign language effect suggests that using a foreign language can sometimes benefit people's decision-making without providing them with additional information or instructions regarding the task. However, we do not fully understand how the foreign language effect works and its limitations. I conclude by urging scientists to research this effect with the hope of having a lasting positive impact on society.

How providing public COVID-19 mitigation instructions in a foreign language can increase people's sense of control

Processing information in a learned foreign language can alter one's judgment or cognitive evaluation of stimuli. Documented consequences include a reduction in perceived negativity and perceived severity of crime or diseases. The global COVID-19 pandemic has offered a unique opportunity to investigate this phenomenon in a real-life public health communication context. The aim of this study is to investigate how foreign language processing influences people's reaction towards freedom-restrictive messages. In our experimental study (N = 605), we presented participants with pandemic mitigation instructions in their native language versus a learned foreign language and assessed their perceived sense of control, cognitive evaluation of the instructions, and the intention to adhere to them. The results indicated that the use of a foreign language influenced people's perceived sense of control in a way that might intuitively be surprising: foreign language enhanced sense of control. This positively influenced the cognitive evaluation of the instructions' effectiveness and the intention to comply with them. The present research demonstrates that foreign language processing influences individuals' responses to specific, real-life instructions. Our results provide important contributions to the literature on foreign language effects and public communication and enable practitioners to more accurately predict recipient responses to global crisis communications.

Uncovering the effects of bilingual language control on rational decisions: An ERP study

A growing body of research suggests that the language in which bilinguals make decisions affects the rationality of such decisions. Furthermore, bilinguals constantly confront cross-language interference that requires complex language control processes to resolve this competition. However, the relationship between language control and decision-making is unclear. In the current study, we analyze electrophysiological and behavior data elicited from two groups of Chinese-English bilinguals. One group was trained in intensive language switching and then completed the Iowa Gambling Task (IGT) and the other group completed the two tasks in the reverse order. We found that bilinguals who first received language switching training significantly scored higher on the IGT, with the score positively correlating with L1 and L2 switch costs. More importantly, training with language switching first led to an N2 component for L1 switching costs that negatively correlated with both loss feedback-related negativity and the P3 component. These effects did not emerge among the group of bilinguals who performed the IGT first. Taken together, the findings suggest that bilinguals are assisted in making rational decisions by language control on feedback evaluation.

Chinese language bilinguistic system supports the emotional resonance interpretation model of foreign language effect

The mechanism behind the influence of a foreign language on the framing effect is still controversial, in terms of whether this influence is due to emotional resonance evoked by language or to the cognitive differences stemming from the language-switching process. We resolved this ambiguity by conducting two experiments with Chinese students. In Study 1 we verified the influence of language (English, Chinese, pinyin) on the framing effect in the decision-making process. In Study 2 we controlled for cognitive processing activities using language translation instructions (switching conditions) to examine the framing effect change in the decision-making process caused by differences in language statements. Our results show that emotional resonance was a crucial factor behind this phenomenon, and that cognitive factors were relevant when emotional resonance variables were controlled for.

Does foreign language alter moral judgments? Inconsistent results from two pre-registered studies with the CNI model

Recent studies suggest that processing moral dilemmas in a foreign language instead of the native language increases the likelihood of moral judgments in line with the utilitarian principle. The goal of our research was to investigate the replicability and robustness of this moral foreign-language effect and to explore its underlying mechanisms by means of the CNI model—a multinomial model that allows to estimate the extent to which moral judgments are driven by people’s sensitivity to consequences (C-parameter), their sensitivity to norms (N-parameter), and their general preference for action or inaction (I-parameter). In two pre-registered studies, German participants provided moral judgments to dilemmas that were either presented in German or English. In Experiment 1, participants judged eight different dilemmas in four versions each (i.e., 32 dilemmas in total). In Experiment 2, participants judged four different dilemmas in one of the four versions (i.e., 4 dilemmas in total). Neither of the two studies replicated the moral foreign-language effect. Moreover, we also did not find reliable language effects on the three parameters of the CNI model. We conclude that if there is a moral foreign-language effect, it must be quite small and/or very fragile and context specific.

Testing the Foreign Language Effect on Cognitive Reflection in Older Adults

An increasing number of people around the world communicate in more than one language, resulting in them having to make decisions in a foreign language on a daily basis. Interestingly, a burgeoning body of literature suggests that people’s decision-making is affected by whether they are reasoning in their native language (NL) or their foreign language (FL). According to the foreign language effect (FLe), people are less susceptible to bias in many decision-making tasks and more likely to display utilitarian cost-benefit analysis in moral decision-making when reasoning in a FL. While these differences have often been attributed to a reduced emotionality in the FL, an emerging body of literature has started to test the extent to which these could be attributable to increased deliberation in the FL. The present study tests whether increased deliberation leads to a FLe on cognitive reflection in a population of older adults (M_age = 65.1), from the successful aging project in Umeå, Sweden. We explored whether performance on a 6-item version of the cognitive reflection test (CRT) adapted to Swedish would differ between participants for whom Swedish was their NL and those for whom Swedish was their FL. The CRT is a task designed to elicit an incorrect, intuitive answer. In order to override the intuitive answer, one requires engaging in deliberative, analytical thinking to determine the correct answer. Therefore, we hypothesized that if thinking in a FL increases deliberation, then those performing the task in their FL would exhibit higher accuracy rates than those performing in their NL. Our results showed that age and level of education predicted performance on the task but performance on the CRT did not differ between the NL and the FL groups. In addition, in the FL group, proficiency in the FL was not related to performance in the CRT. Our results, therefore, do not provide evidence that thinking in a FL increases deliberation in a group of older adults performing a logical reasoning task that is not typically associated with an emotional connotation.