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Methodological approaches in social neuroscience have been rapidly evolving in recent years. Fueling these changes is the adoption of a variety of multivariate approaches that allow researchers to ask a wider and richer set of questions than was previously possible with standard univariate methods. In this chapter, we introduce several of the most popular multivariate methods and discuss how they can be used to advance our understanding of how social cognition and personality processes are represented in the brain. These methods have the potential to allow neuroscience measures to inform and advance theories in social and personality psychology more directly and are likely to become the dominant approaches in social neuroscience in the near future.
Recent approaches to heritage languages have sought to identify explanations for variability in heritage grammars. The present study explores variable patterns of Spanish differential object marking (DOM) in 40 heritage Spanish speakers (HSs) from the United States and 28 Spanish-dominant bilingual speakers (SDSs) from Mexico. Participants completed a picture description task including human, animal and inanimate direct objects. Both groups exhibited patterns of DOM following the Animacy Scale. However, HSs showed lower DOM rates and greater individual variability with human referents compared to SDSs, even when individual differences in language dominance were considered. Conversely, SDSs produced lower rates of DOM with inanimate objects than HSs. DOM use was constrained by verb-specific animacy biases across animacy conditions and speaker groups. These findings reveal that Spanish HSs maintain baseline-like variable patterns of DOM. Moreover, HSs may advance language change in predictable directions based on patterns of variation present in the baseline variety.
Study abroad is typically viewed as a catalyst for pronunciation learning because it affords learners both massive amounts of L2 input and abundant opportunities for meaningful L2 use. Yet, even in such an environment, there is substantial variability in learning trajectories and outcomes. The nature of the target structure is also a powerful determinant of learning; some structures seem to develop effortlessly, whereas others do not improve much at all. Additionally, study abroad research brings to light the important issue of speaker identity, as learners often make decisions about how they want to sound and what pronunciation features they will adopt. This chapter examines developmental time frames, trajectories, and turning points in the phonetics and phonology of L2 learners in a study abroad context. We also describe how learners acquire the regional pronunciation variants of their host communities considering the phonetics of the target feature and learners’ attitudes and beliefs. We argue that study abroad should be situated within a dynamic, longitudinal, and context-dependent view of phonetic and phonological learning.
This chapter presents an overview of what is currently known about phonetic and phonological first language (L1) attrition and drift in bilingual speech and introduces a new theory of bilingual speech, Attrition & Drift in Access, Production, and Perception Theory (ADAPPT). Attrition and drift are defined and differentiated along several dimensions, including duration of change, source in second language (L2) experience, consciousness, agency, and scope. We address why findings of attrition and drift are important for our overall understanding of bilingual speech and draw links between ADAPPT and well-known theories of L2 speech, such as the revised Speech Learning Model (SLM-r), the Perceptual Assimilation Model-L2 (PAM-L2), and the Second Language Linguistic Perception model (L2LP). The significance of findings revealing attrition and drift is discussed in relation to different linguistic subfields. The chapter raises the question of how attrition and drift potentially interact to influence speech production and perception in the bilingual’s L1 over the life span; additional directions for future research are pointed out as well.
This chapter examines the acquisition of vowels and consonants in perception and production during typical second language (L2) acquisition by sequential, dominant bilinguals. The acoustic and articulatory studies reviewed serve to illustrate general patterns of L2 segmental learning with a focus on four principal themes, each structured around one or two main research questions: 1) cross-linguistic influence (How does a sequential, dominant bilingual’s first language shape L2 segmental perception and production?); 2) development (Are there universal patterns to L2 segmental speech development? Are certain vocalic and consonantal phenomena acquired more easily?); 3) inter- and intralearner variability (What are the sources of differences in perception and/or production between learners and for the same learner over time and in different communicative contexts?); and 4) training effects (What are the effects of training on learning? How do variables such as task and stimuli type condition effectiveness?).
Adults undertaking the endeavor of learning a new language can attest to the difficulty involved with producing the sounds and prosody of the target language. A principal aim of research on adult speech production is to comprehend the mechanisms and processes that differentiate adult bilingual speech development from bilingual speech that develops earlier in life. It is clear that individuals who learn an additional language in adulthood typically encounter some difficulties that early learners do not. In particular, these difficulties arise at the segmental level when acquiring novel sound categories and novel sound contrasts, as well as at the suprasegmental level when learning to produce non-native prosodic structures related to intonation, stress, rhythm, tone, and tempo. The present chapter provides a selective overview of the current state-of-the-art in adult bilingual speech production. Furthermore, this chapter considers theoretical and methodological areas for improvement, as well as avenues for future research.
Considering the undeniable importance of examining the role of domain- and skill-specific individual difference factors in second-language (L2) writing research, this study examined the possible roles of English-as-a-foreign-language (EFL) learners’ ideal L2 writing self and growth L2 writing mindset in their L2 writing grit, which may in turn contribute to their L2 writing achievement (WA). Data were collected from 532 English-major students selected via convenience sampling by administering a questionnaire to measure their growth L2 writing mindset, ideal L2 writing self, and L2 writing grit. The International English-Language Testing System (IELTS) academic writing tasks 1 and 2 were used as measures of the learners’ L2 WA. The psychometric properties of the scales were investigated and verified through confirmatory factor analyses. Structural equation modeling (SEM) results revealed that ideal L2 writing self and L2 writing grit directly predicted L2 WA. Additionally, growth L2 writing mindset and ideal L2 writing self predicted L2 WA through the mediation of L2 writing grit. This study highlighted the importance of domain- and skill-specific individual difference factors in L2 WA and the vital necessity of considering them in L2 writing instruction.
The present experimental studies shed light on effects of implicit prosodic cues on anaphora resolution as well as on how these differ both within and between L1 and L2 speaker groups. In two self-paced reading studies, L1 and L2 participants read poem-like texts that contained anaphoric ambiguity. These stimuli were designed to include a rhyming scheme and meter that were either regular or disrupted. We expected a rhyme cue on a nonsubject pronoun antecedent (in the regularly metered and rhyming version of the texts) to induce competition effects in L1 speakers and cause them to adapt their interpretative preferences and processing strategies; yet, for L2 speakers we hypothesized that effects would either not be observed or that they would be attenuated. Additionally, we examined whether comprehender-dependent factors would modulate effects in each group. We tested both L1 and L2 participants on memory-related tasks. We also measured L1 speakers’ print exposure and L2ers’ proficiency in English. Results revealed L1–L2 dissimilarities in interpretative preferences and reading behavior, as L2 speakers were not equally sensitive to the prosodic cues introduced. The examination of memory-related measures provided evidence of within-group differences and between-group parallels: higher working memory in both groups modulated anaphora resolution, although for L2 speakers there was no additional influence of context.
The present study explores the influence of individual differences in experience, perceptual acuity, and working memory on the development of both declarative and automatized aspects of L2 phonological vocabulary knowledge. A total of 486 Japanese English-as-a-foreign-language (EFL) students took part in two vocabulary tests designed to measure declarative (meaning recognition) and automatized knowledge (lexicosemantic judgement task). Their performance was tied to the quantity and quality of their EFL experience, as well as their scores in auditory processing and working memory. While several significant, modest correlations between experience, aptitude, and vocabulary outcomes were observed, certain predictor variables were uniquely associated with either declarative or automatized vocabulary performance. Specifically, individuals with more extensive, typically language-focused EFL training and greater working memory demonstrated higher levels of declarative knowledge. Conversely, those who pursued extracurricular practice outside the classroom – exposing themselves to auditory materials and/or participating in study-abroad experiences – showed a more automatic execution of vocabulary knowledge.
Fake news can affect people in negative ways. A recent line of research has demonstrated that when people are exposed to fake news they can form false memories for the events depicted in the news stories. We conducted a meta-analysis to obtain an estimate of the average rate of false memories elicited by fake news. Thirteen articles were included in the final analysis, revealing that nearly 40% and 60% of the participants reported at least one false memory and belief (respectively) after fake news exposure, while each participant remembered or believed 22% of the total number of fake news presented. Individual differences may affect the rate of false memory formation following exposure to false memories. We therefore examined moderating effects of individual difference variables assessed in the included studies. Participants with better analytical reasoning skills and a high level of interest in the news topic were least likely to report false memories for fake news, with level of interest being also a facilitating factor in remembering true news. No effect was detected for cognitive ability and objective knowledge. Our results provide insightful and practical information in the context of world-wide misinformation dissemination and its impact on people's beliefs and memories.
We have seen rapid development of various brain training methods in the past few decades that quickly became popular among educators, despite the lack of evidence about these products’ effectiveness. Some negative outcomes prompted researchers from both neuroscience and education to develop collaboratively neuroscience-based approaches to educational and clinical practices. This chapter discusses fundamental training-related questions, such as neuroplasticity, transfer, and individual differences and provides a detailed examination of one domain-specific method (i.e., working memory training) and a multi-domain approach (i.e., music training). Based on the findings, we point out how critical it is to determine the specific cognitive or linguistic skills that researchers intend to target with a given training method prior to the beginning of the training process. Further, it is essential to identify the overlapping processing components and underlying neural regions between the training tasks and the post-training measures to achieve transfer to untrained tasks.
The Introduction provides a brief review of the overall aims and conceptual and methodological approaches of the book, with a focus on the dynamic interactions between cognitive control and language. It highlights the interdisciplinary nature of the discussions and the integration of behavioral and neurophysiological outcomes throughout the chapters. A further goal is to point to the need for a connection between theoretical models and educational/clinical practices and to facilitate a discussion between researchers and educators/clinicians. The Introduction also includes a short summary of each chapter by presenting the main ideas and critical issues about the development of cognitive control in children with various language skills (e.g., children with language talent, children with bilingualism as their first language, children with developmental language disorder, emerging bilingual speakers).
This chapter is a synthesis of the findings about the relationship between cognitive control and language. It provides a more holistic picture about this relationship with particular attention to the heterogeneity of the participants and the shortage of sufficiently sensitive, valid tasks. The discussion is centered around the need for more studies using an individual-differences approach and the ways this approach may be combined with experimental designs to provide a method within which variability in performance is viewed as key information. The findings suggest that we must broaden the language spectrum in our studies to include speakers of various languages at a variety of proficiency and ability levels. Additional focus is placed on the need for interprofessional collaborations among researchers across disciplines, as well as between researchers and practitioners and educators, in order to enhance our diagnostic and classification accuracy and to decrease the inconsistencies in findings across studies.
Language use is a skill that requires exposure to language, feedback on usage, and practice. So children need exposure from expert speakers, feedback on the language being acquired, and on any errors children produce, and practice along the way. Languages differ, so the paths children follow within and across languages may vary, and some constructions may be harder to acquire in one language, easier in another. The goal is to learn to use language for communication. Language is essentially social, relying on common ground. Part I (Chapters 2-6) focusses on how adults talk with children; children’s analysis of the speech stream; their first production of words; and how they assign meanings to words. Part II (Chapters 7-11) focusses on children’s acquisition of structure: elaborations of information inside clauses, and combinations of clauses. They also rely on structure when coining new words. Part III (Chapters 12-14) looks at turn-taking, learning to be polite, persuasive, and informative, and how to tell stories. Children who hear two languages have two such systems to learn. Part IV (Chapters 15-16) summarizes evidence for biological specialization for language and considers how continuity and change are reflected in language processing.
Radicalization is most often seen as a gradual process that may or may not lead to radical or extreme behaviors such as terrorism. Theories on the radicalization process often highlight the potential role of social exclusion in the propensity for radicalization. We here present some of the major radicalization theories and discuss exclusion as a common denominator that could trigger a radicalization process. We then describe the research on personality and individual differences in relation to radicalization briefly, before discussing individual differences that are connected to exclusion in more depth. We go through the available empirical evidence supporting the notion that some individual level differences, such as rejection sensitivity, could moderate the effect of exclusion on radicalization. We further discuss other potential individual differences that relate to exclusion such as need to belong and entitlement.
Although insight experiences are recognized to be cognitively, physiologically, and neurologically distinct from other forms of reasoning and problem solving, it also appears that the experience of insight is not the same for all types of individuals or in all circumstances. Researchers in our lab and others have begun to examine the individual differences associated with the insight experience: what makes certain individuals more likely to report solving problems insightfully, and how might the subjective experience of insight differ among people according to their underlying psychological and neurobiological characteristics? Research demonstrates that the tendency to experience insight during problem-solving varies among individuals as a function of transient differences in one’s psychological state as well as stable, trait-like differences in neurocognitive dynamics. We argue that an individual differences approach can further disambiguate the components of insight on the behavioral and neural levels and help us understand when, and for whom, such experiences are most likely to occur, and how they may affect us depending on our individual motivations, goals, and underlying neurobiology.
In light of findings from research on informal foreign/second language (L2) learning, with a focus on English as a target language and using the concept of extramural English (EE), this position paper argues that learners’ engagement in EE (through activities such as watching television or films or playing digital games) constitutes an important individual difference (ID) variable that needs to be included in studies that aim to measure L2 English proficiency or development. In addition, it is suggested that if EE as an ID variable is left out in such studies in the future, the rationale for exclusion should be clearly stated. This position paper also discusses research instruments and methods used in this area of research, the benefits and drawbacks of different methods, and identifies research gaps and under-researched learner groups. Further, it is argued that in some contexts, EE has replaced classroom activities as the starting point for and foundation of learning English.
International guidelines present overall symptom severity as the key dimension for clinical characterisation of major depressive disorder (MDD). However, differences may reside within severity levels related to how symptoms interact in an individual patient, called symptom dynamics.
Aims
To investigate these individual differences by estimating the proportion of patients that display differences in their symptom dynamics while sharing the same overall symptom severity.
Method
Participants with MDD (n = 73; mean age 34.6 years, s.d. = 13.1; 56.2% female) rated their baseline symptom severity using the Inventory for Depressive Symptomatology Self-Report (IDS-SR). Momentary indicators for depressive symptoms were then collected through ecological momentary assessments five times per day for 28 days; 8395 observations were conducted (average per person: 115; s.d. = 16.8). Each participant's symptom dynamics were estimated using person-specific dynamic network models. Individual differences in these symptom relationship patterns in groups of participants sharing the same symptom severity levels were estimated using individual network invariance tests. Subsequently, the overall proportion of participants that displayed differential symptom dynamics while sharing the same symptom severity was calculated. A supplementary simulation study was conducted to investigate the accuracy of our methodology against false-positive results.
Results
Differential symptom dynamics were identified across 63.0% (95% bootstrapped CI 41.0–82.1) of participants within the same severity group. The average false detection of individual differences was 2.2%.
Conclusions
The majority of participants within the same depressive symptom severity group displayed differential symptom dynamics. Examining symptom dynamics provides information about person-specific psychopathological expression beyond severity levels by revealing how symptoms aggravate each other over time. These results suggest that symptom dynamics may be a promising new dimension for clinical characterisation, warranting replication in independent samples. To inform personalised treatment planning, a next step concerns linking different symptom relationship patterns to treatment response and clinical course, including patterns related to spontaneous recovery and forms of disorder progression.
In this chapter, we discuss the way people read, remember and understand discourse, depending on the type of relations that link discourse segments together. We also illustrate the role of connectives and other discourse signals as elements guiding readers’ interpretation. Throughout the chapter, we review empirical evidence from experiments that involve various methodologies such as offline comprehension tasks, self-paced reading, eye-tracking and event related potentials. One of the major findings is that not all relations are processed and remembered in the same way. It seems that causal relations play a special role for creating coherence in discourse, as they are processed more quickly and remembered better. Conversely, because they are highly expected, causal relations benefit less from the presence of connectives compared to discontinuous relations like concession and confirmation. Finally, research shows that in their native language, speakers are able to take advantage of all sorts of connectives for discourse processing, even those restricted to the written mode, and those that are ambiguous.
In this chapter, we present an overview of current knowledge about learners’ use and understanding of connectives. In the first part of the chapter, we will see that connectives are notoriously difficult to master for second language learners, because they require an array of complex competences. Learners must know how to use them appropriately in various genres and registers, have a fine-grained understanding of the meaning differences between connectives used to convey similar coherence relations, and also automatize this knowledge so that it is activated automatically during discourse processing, and not only when they consciously elicit usage rules. In the second part of the chapter, we review the important body of studies that have empirically assessed the causes for learners’ difficulties with connectives, and conclude with some recommendations for teaching. We conclude that research on the second language acquisition of connectives contributes to answering important questions, such as what makes connectives difficult to master, and how they are they used across languages.