Context Effects Research Articles

Error-based Implicit Learning in Language: The Effect of Sentence Context and Constraint in a Repetition Paradigm.

Prediction errors drive implicit learning in language, but the specific mechanisms underlying these effects remain debated. This issue was addressed in an EEG study manipulating the context of a repeated unpredictable word (repetition of the complete sentence or repetition of the word in a new sentence context) and sentence constraint. For the manipulation of sentence constraint, unexpected words were presented either in high-constraint (eliciting a precise prediction) or low-constraint sentences (not eliciting any specific prediction). Repetition-induced reduction of N400 amplitudes and of power in the alpha/beta frequency band was larger for words repeated with their sentence context as compared with words repeated in a new low-constraint context, suggesting that implicit learning happens not only at the level of individual items but additionally improves sentence-based predictions. These processing benefits for repeated sentences did not differ between constraint conditions, suggesting that sentence-based prediction update might be proportional to the amount of unpredicted semantic information, rather than to the precision of the prediction that was violated. In addition, the consequences of high-constraint prediction violations, as reflected in a frontal positivity and increased theta band power, were reduced with repetition. Overall, our findings suggest a powerful and specific adaptation mechanism that allows the language system to quickly adapt its predictions when unexpected semantic information is processed, irrespective of sentence constraint, and to reduce potential costs of strong predictions that were violated.

Changes in peripheral oxytocin and vasopressin during a silent month-long Insight meditation retreat

BackgroundGiven its putative roles in mediating prosocial behavior, attachment bonds, and stress physiology, oxytocin modulation has been hypothesized to be a biological correlate of the salubrious effects of meditation practice. Here we investigated the effects of a month-long silent meditation retreat on changes in oxytocin, and the related hormone and vasopressin, in relation to psychosocial changes in attachment style, anxiety, personality measures, and feelings of social connectedness with fellow meditators.MethodsPlasma oxytocin and vasopressin and self-report questionnaires were measured in retreat participants (n = 28) at the beginning of, and 3 weeks into, a residential meditation retreat. Control participants (n = 34), who were similar in age, gender, and meditation experience, were also assessed across a 3-week interval. Linear mixed effects models were used to assess outcomes.ResultsThe retreat group showed a small but significant decrease in oxytocin compared to controls who showed no change. In the retreat group, higher openness to experience at Time 1 predicted greater reductions in oxytocin during the retreat, and lower oxytocin at Time 2 was related to stronger feelings of personal connection with fellow meditators. The changes in oxytocin were not related to attachment style or anxiety. Vasopressin decreased over time across both groups, suggesting no specific effect of retreat.ConclusionThese preliminary findings suggest that meditation training in the context of a silent residential retreat may reduce circulating levels of oxytocin. We interpret this finding from multiple theoretical perspectives, discussing key measurement limitations and proposing future study designs that may help to differentiate the effects of different meditation practices and contexts on oxytocin signaling.

MEM&SO protocol: understanding the determinants of social learning in neurodegenerative diseases

BackgroundPeople with neurodegenerative diseases may have difficulty learning new information, owing to their cognitive impairments. Teaching them techniques for learning in social contexts could alleviate this difficulty. The present study will examine the performances of patients with Alzheimer’s disease and patients with the semantic variant of primary progressive aphasia on a memory test administered in three social contexts. The protocol will make it possible to identify determinants of social interactions, social abilities, cognition, and personality that can explain the potentially beneficial effect of social context on learning in these patients.MethodsThirty dyads (patient with primary memory impairment who meets criteria for Alzheimer’s disease paired with caregiver), 16 dyads (patient meeting criteria for semantic variant of primary progressive aphasia paired with caregiver), and 46 dyads (healthy controls with no cognitive complaints) will be recruited. A nonverbal memory test (social memory task) will be administered to each dyad in three different social contexts (presence-only, observation, collaboration). Patients and healthy controls will also undergo a neuropsychological assessment to measure social (interactions and abilities), cognitive and personality aspects. Patients will be compared with controls on differential social scores calculated between the presence-only and collaboration contexts, and between the presence-only and observation contexts. A multiple comparative case study will be conducted to identify social, cognitive and personality variables that potentially explain the differential scores in the collaboration and observation contexts.DiscussionFor the first time, memory will be assessed in patients with Alzheimer’s disease and patients with the semantic variant of primary progressive aphasia in three different contexts (presence-only, observation, collaboration). The multiple comparative case study will make it possible to identify the determinants of memory performance in the social context, in order to create the most beneficial learning context for individual patients, according to their profile.Trial registrationThis study was approved by the Ile de France XI institutional review board (2022-A00198-35), and registered on ClinicalTrials.gov (no. NCT05800028), on April 27, 2023.

Effect of spatial context on perceived walking direction.

Contextual modulation occurs for many aspects of high-level vision but is relatively unexplored for the perception of walking direction. In a recent study, we observed an effect of the temporal context on perceived walking direction. Here, we examined the spatial contextual modulation by measuring the perceived direction of a target point-light walker in the presence of two flanker walkers, one on each side. Experiment 1 followed a within-subjects design. Participants (n = 30) completed a spatial context task by judging the walking direction of the target in 13 different conditions: a walker alone in the center or with two flanking walkers either intact or scrambled at a flanker deviation of ±15°, ±30°, or ±45°. For comparison, participants completed an adaptation task where they reported the walking direction of a target after adaptation to ±30° walking direction. We found the expected repulsive effects in the adaptation task but attractive effects in the spatial context task. In Experiment 2 (n = 40), we measured the tuning of spatial contextual modulation across a wide range of flanker deviation magnitudes ranging from 15° to 165° in 15° intervals. Our results showed significant attractive effects across a wide range of flanker walking directions with the peak effect at around 30°. The assimilative versus repulsive effects of spatial contextual modulation and temporal adaptation suggest dissociable neural mechanisms, but they may operate on the same population of sensory channels coding for walking direction, as evidenced by similarity in the peak tuning across the walking direction of the inducers.

Promoting planting in front gardens: a systematic approach to intervention development

Planting in front gardens is associated with a range of human and environmental health benefits. Effective interventions aimed at cultivating this practice are, however, hampered by the paucity of theory- and evidence-based behavioural research in this context. This study aims to systematically determine a set of behaviour change interventions likely to be effective at promoting planting in front gardens amongst UK householders. The Behaviour Change Wheel framework was applied. Behavioural systems mapping was used to identify community actors relevant to front gardening. Potential behavioural influences on householders’ front gardening were identified using the Capability, Opportunity, Motivation, Behaviour model. Using peer-reviewed scientific findings as evidence, behavioural influences were systematically linked to potential intervention strategies, behaviour change techniques and real-world implementation options. Finally, intervention recommendations were refined through expert evaluations and local councillor and public stakeholder feedback, evaluating them against the Acceptability, Practicability, Effectiveness, Affordability, Side effects and Equity criteria in a UK implementation context. This study formulated 12 intervention recommendations, implementable at a community level, to promote front gardening. Stakeholder feedback revealed a preference for educational and supportive (social and practical) strategies (e.g., community gardening workshops, front gardening ‘starter kits’) over persuasive and motivational approaches (e.g., social marketing, motivational letters from the council to householders). Householders’ front gardening behaviour is complex and influenced by the behaviour of many other community actors. It also needs to be understood as a step in a continuum of other behaviours (e.g., clearing land, gardening, waste disposal). This study demonstrates the application of behavioural science to an understudied implementation context, that is, front gardening promotion, drawing on a rigorous development process promoting a transparent approach to intervention design. Stakeholder consultation allowed relevance, feasibility and practical issues to be considered. These improve the likely effectiveness of interventions in practice. The next steps include evaluating the proposed interventions in practice.

A Motivational Perspective on (Anticipated) Mental Effort Investment: The Biopsychosocial Model of Challenge and Threat

Research in cognitive load theory is increasingly recognizing the importance of motivational influences on students’ (willingness to invest) mental effort, in particular in the context of self-regulated learning. Consequently, next to addressing effects of instructional conditions and contexts on groups of learners, there is a need to start investigating individual differences in motivational variables. We propose here that the biopsychosocial model of challenge and threat may offer a useful model to study the motivational antecedents of (anticipated) mental effort. We also report four experiments as initial tests of these ideas, exploring how feedback valence affects students’ challenge/threat experiences, self-efficacy, and mental effort investment. The results showed that negative feedback leads participants to expect that they will have to invest significantly more effort in future problems than positive feedback (Experiments 1, 2, and 3) or no feedback (Experiment 3). Had we not considered the motivational variables in investigating the effect of feedback conditions on effort investment, we would not have known that this effect was fully mediated and thus explained by participants’ feelings of self-efficacy (Experiments 1/2) and threat (Experiment 1). We would also have concluded that feedback does not affect the willingness to invest effort in future problems (all four experiments), whereas actually, there were significant indirect effects of feedback on willingness to invest effort via challenge (in Experiments 1/2) and threat (in all experiments). Thus, our findings demonstrate the added value of considering challenge and threat motivational states to explain individual differences in effort investment.

Beyond measurement: a deep dive into the commonly used pain scales for postoperative pain assessment.

This review explores the essential methodologies for effective postoperative pain management, focusing on the need for thorough pain assessment tools, as underscored in various existing guidelines. Herein, the strengths and weaknesses of commonly used pain scales for postoperative pain-the Visual Analog Scale, Numeric Rating Scale, Verbal Rating Scale, and Faces Pain Scale-are evaluated, highlighting the importance of selecting appropriate assessment tools based on factors influencing their effectiveness in surgical contexts. By emphasizing the need to comprehend the minimal clinically important difference (MCID) for these scales in evaluating new analgesic interventions and monitoring pain trajectories over time, this review advocates recognizing the limitations of common pain scales to improve pain assessment strategies, ultimately enhancing postoperative pain management. Finally, five recommendations for pain assessment in research on postoperative pain are provided: first, selecting an appropriate pain scale tailored to the patient group, considering the strengths and weaknesses of each scale; second, simultaneously assessing the intensity of postoperative pain at rest and during movement; third, conducting evaluations at specific time points and monitoring trends over time; fourth, extending the focus beyond the intensity of postoperative pain to include its impact on postoperative functional recovery; and lastly, interpreting the findings while considering the MCID, ensuring that it is clinically significant for the chosen pain scale. These recommendations broaden our understanding of postoperative pain and provide insights that contribute to more effective pain management strategies, thereby enhancing patient care outcomes.

Scaling of social initiatives: the role of entrepreneurial skills and positions

PurposeThe scaling of social initiatives is important to achieve broad social impact based on successful small-scale experiments. This paper focuses on the influence of the characteristics of the initiators of social initiatives on scaling processes. The limited literature on this topic highlights two critical actor characteristics: high entrepreneurial skills and a central position in the area. Both characteristics influence two critical components of the scaling process: mobilizing stakeholders and focusing on retaining effectiveness. The purpose of this paper is to explore these complex relationships in a deductive analysis and to use these findings for an inductive analysis to generate new insights and extend our academic understanding.Design/methodology/approachA comparative qualitative study of 20 social initiatives in the Dutch social sector was conducted, including 48 in-depth interviews with initiators and stakeholders in three different areas – mental health, debt and labour participation.FindingsHigh entrepreneurial skills are more important for mobilizing stakeholders and focusing on retention of effectiveness than the position of the initiators, but these are a condition rather than a guarantee. Creating space for scaling and investing in measuring effectiveness in other contexts are also important.Originality/valueBy combining the literature on social entrepreneurship and public innovation and conducting an empirical study, our study provides a broad and nuanced picture and brings precision to our understanding of the relationships between initiators' entrepreneurial skills and position and the scaling process.

Distributor whistleblowing: The effects of manufacturer trustworthiness, opportunism, and transaction contexts

Distributor whistleblowing: The effects of manufacturer trustworthiness, opportunism, and transaction contexts

Modelling Context Effects in Exit Choice for Building Evacuations

Understanding exit choice behaviour is essential for optimising safety management strategies in building evacuations. Previous research focused on contextual attributes, such as spatial information, influencing exit choice, often using utility models based on monotonic functions of attributes. However, during emergencies, evacuees typically make rapid, less calculated decisions. The choice of context can significantly impact the evaluation of attributes, leading to preference reversals within the same choice set but under varying context conditions. This cognitive psychological phenomenon, known as context effects, encompasses the compromise effect, the similarity effect, and the attraction effect. While researchers have long recognised the pivotal role of context effects in human decision making, their incorporation into computer-aided evacuation management remains limited. To address this gap, we introduce context effects (CE) in a social force (SF) model, CE-SF. Evaluating CE-SF’s performance against the UF-SF model, which considers only the utility function (UF), we find that CE-SF better replicates exit choice behaviour across urgency levels, highlighting its potential to enhance evacuation strategies. Notably, our study identifies three distinct context effects during evacuations, emphasising their importance in advancing safety measures.

Temporal context effects on suboptimal choice.

Choice can be driven both by rewards and stimuli that signal those rewards. Under certain conditions, pigeons will prefer options that lead to less probable reward when the reward is signaled. A recently quantified model, the Signal for Good News (SiGN) model, assumes that in the context of uncertainty, signals for a reduced delay to reward reinforce choice. The SiGN model provides an excellent fit to previous results from pigeons and the current studies are the first to test a priori quantitative predictions. Pigeons chose between a suboptimal alternative that led to signaled 20% food and an optimal alternative that led to 50% food. The duration of the choice period was manipulated across conditions in two experiments. Pigeons strongly preferred the suboptimal alternative at the shorter durations and strongly preferred the optimal alternative at the longer durations. The results from both experiments fit well with predictions from the SiGN model and show that altering the duration of the choice period has a dramatic effect in that it changes which of the two options pigeons prefer. More generally, these results suggest that the relative value of options is not fixed, but instead depends on the temporal context.

VARIABILITY OF RADIOCARBON RESERVOIR AGE EFFECTS IN LAKES AND RIVERS IN ANATOLIA AND LESSER CAUCASUS

ABSTRACT Multiproxy sedimentary sequence analysis constitutes the basis for reconstructions of past paleoenvironments and climate evolution. These sequences are, for the most part, obtained by coring in lakes, maars or crater lakes whose waters can record volcanic activity or karstic contributions, especially in Eastern Anatolia and the Lesser Caucasus. The reservoir age effect in these geological contexts leads to an apparent aging of the radiocarbon ages which also affects the plants and animals developing in or near these waters and consequently the population consuming them. We present here some results obtained from modern samples taken from Mediterranean, central and eastern Anatolian lakes, from the Van and Sevan lakes and along the Kura River and its tributaries from the Lesser Caucasus. The effect of volcanic CO2 outgassing in the vicinity of maar crater lakes is also discussed.

A reduced kinetic method for investigating non-local ion heat transport in ideal multi-species plasmas

A reduced kinetic method (RKM) with a first-principles collision operator is introduced in a 1D2V planar geometry and implemented in a computationally inexpensive code to investigate non-local ion heat transport in multi-species plasmas. The RKM successfully reproduces local results for multi-species ion systems and the important features expected to arise due to non-local effects on the heat flux are captured. In addition to this, novel features associated with multi-species, as opposed to single species, cases are found. Effects of non-locality on the heat flux are investigated in mass and charge symmetric and asymmetric ion mixtures with temperature, pressure, and concentration gradients. In particular, the enthalpy flux associated with diffusion is found to be insensitive to sharp pressure and concentration gradients, increasing its significance in comparison to the conductive heat flux driven by temperature gradients in non-local scenarios. The RKM code can be used for investigating other kinetic and non-local effects in a broader plasma physics context. Due to its relatively low computational cost it can also serve as a practical non-local ion heat flux closure in hydrodynamic simulations or as a training tool for machine learning surrogates.

Exploring patient and staff member views on a 'consent for contact' system for sexual health research: A mixed methods study.

Recruitment in sexual health research is challenging. This study explores the potential of a Consent for Contact system (C4C) - generic consent for research contact - to improve participant recruitment and engagement in sexual health research. Our objectives were to understand patient and staff understanding of research, their views on a separate C4C system, and their preferences for its acceptability in a sexual health clinic setting. A two-stage study was conducted at a large urban UK sexual health clinic from November 2021 to July 2022. Stage one involved a self-completed questionnaire administered to all patients and staff. In Stage 2, semi-structured interviews (SSIs) further explored patient concerns and preferences. Survey data were analysed using chi-square and Fisher's exact test and thematic analysis was applied to free-text responses and SSIs. A total of 205/300 patient (68%) and 41/280 staff questionnaires (15%) were completed. Motivations for research participation included altruism and personal interest. Statistically significant differences were found between patients' and staff members' concerns on confidentiality and anticipated feeling of pressure to participate. The majority of staff (n = 38, 93%) and half of patients (n = 100, 49%) supported implementation of a sexual health C4C system. Participants recognised the potential benefits of a sexual health C4C system, including enhanced privacy and increased research opportunities. Concerns were raised about stigma, terminology, and signing-up methods. This study found the C4C system has the potential to enhance participant recruitment and engagement in sexual health research, but implementation support is narrowly divided with concerns around privacy and sign-up processes. These insights call for a patient-centred design approach, emphasising clear communication and privacy. Future research should focus on implementing and evaluating a sexual health C4C system to further explore their effectiveness and acceptability in different contexts.

High-performance work practices and entrepreneurial firm performance: the moderating role of firm size and industry type

PurposeThis paper examines the moderating role of firm size (FS) and industry type in the relationship between high-performance work practices (HPWPs) and entrepreneurial firm performance.Design/methodology/approachA descriptive research design involving a five-year dataset from firms in the retail and services industries of Nigeria was used in the analyses.FindingsThe use of HPWPs is widespread among entrepreneurial firms, with ability- and motivation-enhancing practices being dominant. Country context influences the types of HPWPs implemented by entrepreneurial firms. FS and industry type do not have significant moderating effects on the relationship between HPWPs and the performance of entrepreneurial firms. The positive effect of HPWPs on performance is consistent with findings made in prior studies.Research limitations/implicationsFS plays a neutral role in the relationship between HPWPs and entrepreneurial firm performance. Within the broader retail and services industries, this relationship is weaker in capital-intensive firms compared to less capital-intensive ones. The restricted focus on only retail and service industries may limit the universal applicability of the findings.Practical implicationsFindings indicate that the efficacy of HPWPs is neither influenced by FS nor industry type. Entrepreneurial firms with higher capital intensity benefit relatively more from the use of HPWPs.Originality/valueUnlike other research efforts focusing on a single moderating influence, this study combines two important contextual factors, FS and industry type, to provide a better understanding of HPWPs. The study spotlights the effects of country context in the implementation of HPWPs in a way that prior studies have not done.

50 Years of Context Effects: Merging the Behavioral and Quantitative Perspectives

Abstract Over the past 50 years, consumer researchers have presented extensive evidence that consumer preference can be swayed by the decision context, particularly the configuration of the choice set. Importantly, behavioral research on context effects has inspired prominent quantitative research on multialternative decision-making published in leading psychology, management, economics, and general interest journals. While both streams of research seem to agree that context effects are an important research area, there has been relatively limited interaction, communication, and collaboration between the two research camps. In this article, we seek to initiate an active dialogue between the two sides. We begin by providing a critical overview of the two literatures on context effects, discussing both their strengths and weaknesses, as well as disparities and complementarities. Here, we place particular emphasis on deepening consumer researchers’ understanding of context effects by drawing on prominent quantitative research published in non-marketing journals over the last decades. Importantly, we provide a roadmap for the future that can inspire further research and potential collaborations between the two camps, overcoming silos in knowledge creation.

The Concise Language Paradigm (CLaP), a framework for studying the intersection of comprehension and production: electrophysiological properties.

Studies investigating language commonly isolate one modality or process, focusing on comprehension or production. Here, we present a framework for a paradigm that combines both: the Concise Language Paradigm (CLaP), tapping into comprehension and production within one trial. The trial structure is identical across conditions, presenting a sentence followed by a picture to be named. We tested 21 healthy speakers with EEG to examine three time periods during a trial (sentence, pre-picture interval, picture onset), yielding contrasts of sentence comprehension, contextually and visually guided word retrieval, object recognition, and naming. In the CLaP, sentences are presented auditorily (constrained, unconstrained, reversed), and pictures appear as normal (constrained, unconstrained, bare) or scrambled objects. Imaging results revealed different evoked responses after sentence onset for normal and time-reversed speech. Further, we replicated the context effect of alpha-beta power decreases before picture onset for constrained relative to unconstrained sentences, and could clarify that this effect arises from power decreases following constrained sentences. Brain responses locked to picture-onset differed as a function of sentence context and picture type (normal vs. scrambled), and naming times were fastest for pictures in constrained sentences, followed by scrambled picture naming, and equally fast for bare and unconstrained picture naming. Finally, we also discuss the potential of the CLaP to be adapted to different focuses, using different versions of the linguistic content and tasks, in combination with electrophysiology or other imaging methods. These first results of the CLaP indicate that this paradigm offers a promising framework to investigate the language system.

Analysis of Market Entry Strategies for Foreign Multinational Corporations in India A Market Research Study

This research paper explores market entry strategies for foreign multinational corporations (MNCs) in India, aiming to provide actionable insights for navigating the complexities of this dynamic market landscape. Through a qualitative research design, semi-structured interviews were conducted with key industry experts and executives of foreign MNCs operating in India. The findings reveal that joint ventures are the preferred entry mode, with factors such as access to local knowledge, regulatory requirements, and cultural compatibility influencing entry mode selection. Performance evaluation metrics primarily focus on revenue growth, market share, and customer satisfaction, while adaptation strategies include product localization, marketing customization, and supply chain optimization. Challenges faced by foreign MNCs in market entry include regulatory compliance, cultural differences, and competition. Overall, this study contributes to filling the identified literature gap by providing a nuanced understanding of market entry strategies and their effectiveness in the Indian context. The implications of these findings extend to both academia and practice, offering opportunities for further research and guiding strategic decision-making for MNCs seeking to establish and expand their presence in India.

Native advertising on mobile applications: using eye tracking to investigate the effects of advertising format, user motivation, and advertising disclosure on advertising effects

Although native advertising has become the primary advertising type in the mobile application context, few studies have focused on its influential factors. This study uses eye-tracking technology to examine the impacts of ad format, user motivation, and ad disclosure on advertising effects in the Chinese context. Respondents (N = 422) were recruited to participate in a 2 (ad format: statics vs. dynamics) × 2 (user motivation: information-seeking vs. entertainment-seeking) × 2 (ad disclosure: non-disclosed vs. disclosed) between-subjects experiment. The results showed that users with an entertainment-seeking motivation paid greater attention and showed less attitudinal responses to dynamic (vs. static) ads. While no differences were observed in attention duration and attitudinal responses to disclosed dynamic and static ads for users with an information-seeking motivation, these users perceived undisclosed dynamic (vs. static) ads as more intrusive. These findings extend the literature on native advertising to the Chinese mobile media context and offer practical implications for native advertising designs.

The relation between resident mentorship and in‐training examination scores: A nation‐wide, cross‐sectional study in Japan

AbstractBackgroundMentorship is a dynamic reciprocal relationship, wherein a novice (mentee) grows with the encouragement of an advanced careerist (mentor). It is widely implemented in medical training programs. However, there are few reports on mentorship's educational effects in the Japanese context. This study investigated the association between mentorship and in‐training examination scores during a clinical residency program in Japan.MethodsA cross‐sectional study was conducted in Japan, involving first and second year postgraduate (PGY‐1 and PGY‐2) residents set to take the General Medicine In‐Training Examination (GM‐ITE) at the end of the academic year of 2021. The GM‐ITE, developed by a non‐profit organization in 2012, assesses the overall clinical knowledge of PGY‐1 and PGY‐2 residents. Data on mentorship were obtained through an electronic survey, conducted immediately after the GM‐ITE. The association between a resident's self‐reported identification of at least one mentor and GM‐ITE score was analyzed at multiple levels.ResultsOf the total 4929 residents, 3266 (66.3%) reported having mentors. However, there was no association between mentorship and GM‐ITE scores (adjusted score difference [aSD] = −0.22; 95% confidence interval [95% CI]: −0.64 to 0.19).ConclusionsAmong Japanese residents, in‐training examination scores were not associated with mentorship.