Word Learning Research Articles

Retrieval supports word learning in children with Down syndrome

BackgroundRetrieving information during word learning significantly improves retention and recall in both typically developing children and those with language delays. However, the extent to which this strategy benefits all learners, particular those with cognitive impairment and significant learning difficulties is unclear. AimsThis study examined the effects of retrieval practice on novel word learning in children with Down syndrome. SampleThe sample consisted of 11 children with Down syndrome aged 8–13 years and 11 typically developing children with comparable receptive vocabulary skills aged 4–6 years. MethodsParticipants were taught a series of novel words and their meanings either using retrieval or restudy strategies. Learning was assessed after 5-min and one week later. Mixed effects models were used to compare the effect of learning condition on recall and recognition. ResultsRecall accuracy of novel words was significantly higher in the retrieval condition compared to restudy in both participant groups, and this effect remained one week later. Children with Down syndrome also recalled significantly more meanings of these words in the retrieval condition compared to restudy; this effect was not significant for typically developing children. ConclusionsRetrieval practice improves novel word learning in children with Down syndrome. These findings highlight retrieval practice as an effective learning strategy in diverse populations. Implications for theory and practice are discussed.

Teacher implementation of an individualised vocabulary intervention programme for dual language learners in a preschool classroom

Purpose This study explored the feasibility of implementing an individualised vocabulary intervention for dual language learners through teachers, who leverage their knowledge about their students to address each child’s diverse needs. Method Participants were 32 Cantonese-English pre-school dual language learners and 16 teacher implementers from eight classrooms of a Head Start Programme. During the 3-week programme, teacher implementers were given an individualised set of 12 target words for each student. Implementation was measured using daily logs, questionnaires, and interviews. Children’s immediate word learning was reported by teachers and word retention was measured two weeks after the intervention. Result Teacher implementers were able to teach the individual target words to each participant in one-on-one interactive sessions 94% of the time. Various teaching strategies were used along with culturally relevant teaching materials. On average, children learned 92% of the target words and retained 42% of the target words. Conclusion The study highlights the practicability of implementing an individualised intervention programme by harnessing teachers’ knowledge of the children they work with. The results have implications for building a high-quality and culturally-responsive intervention programme for dual language learners.

Difficulty in artificial word learning impacts targeted memory reactivation and its underlying neural signatures.

Sleep associated memory consolidation and reactivation play an important role in language acquisition and learning of new words. However, it is unclear to what extent properties of word learning difficulty impact sleep associated memory reactivation. To address this gap, we investigated in 22 young healthy adults the effectiveness of auditory targeted memory reactivation (TMR) during non-rapid eye movement sleep of artificial words with easy and difficult to learn phonotactical properties. Here, we found that TMR of the easy words improved their overnight memory performance, whereas TMR of the difficult words had no effect. By comparing EEG activities after TMR presentations, we found an increase in slow wave density independent of word difficulty, whereas the spindle-band power nested during the slow wave up-states - as an assumed underlying activity of memory reactivation - was significantly higher in the easy/effective compared to the difficult/ineffective condition. Our findings indicate that word learning difficulty by phonotactics impacts the effectiveness of TMR and further emphasize the critical role of prior encoding depth in sleep associated memory reactivation.

Difficulty in artificial word learning impacts targeted memory reactivation and its underlying neural signatures

Sleep associated memory consolidation and reactivation play an important role in language acquisition and learning of new words. However, it is unclear to what extent properties of word learning difficulty impact sleep associated memory reactivation. To address this gap, we investigated in 22 young healthy adults the effectiveness of auditory targeted memory reactivation (TMR) during non-rapid eye movement sleep of artificial words with easy and difficult to learn phonotactical properties. Here, we found that TMR of the easy words improved their overnight memory performance, whereas TMR of the difficult words had no effect. By comparing EEG activities after TMR presentations, we found an increase in slow wave density independent of word difficulty, whereas the spindle-band power nested during the slow wave up-states – as an assumed underlying activity of memory reactivation – was significantly higher in the easy/effective compared to the difficult/ineffective condition. Our findings indicate that word learning difficulty by phonotactics impacts the effectiveness of TMR and further emphasize the critical role of prior encoding depth in sleep associated memory reactivation.

Do reading times predict word learning? An eye–tracking study with novel words

Abstract Theories of learning and attention predict a positive relationship between reading times on unfamiliar words and their learning; however, empirical findings of contextual learning studies range from a strong positive relationship to no relationship. To test the conjecture that longer reading times may reflect different cognitive and metacognitive processes, the need to infer novel word meanings from context was deliberately manipulated. One hundred and two adult first– and second–language English language speakers read sixty passages containing pseudowords while their eye movements were recorded. The passages were either preceded or followed by pseudoword definitions. After reading, participants completed posttests of cued meaning recall and form recognition. Meaning recall was positively associated with (i) individual cumulative reading times and (ii) participants’ general vocabulary knowledge, but not when definitions were provided before reading. Form recognition was unaffected by cumulative reading times. Our findings call for a cautious approach in making causative links between eye–movement measures and vocabulary learning from reading.

Musical and verbal memory dissociation in a patient with autoimmune encephalitis

Music is emotionally arousing and activates different brain areas. Musicians with encephalitis spare musical memory. However, no prior studies have used delayed verbal and musical memory tasks in a patient with thalamic damage. The aim of the present study is to analyse a possible dissociation between verbal and musical memory in a patient with autoimmune encephalitis, who was an amateur musician. JC is a 67- years-old amateur musician with autoimmune encephalitis. He and 8 participants (musicians and non-musicians) were assessed through musical (novel excerpt recognition) and verbal memory tasks (word learning, recall and recognition), including a delayed memory task, a week later. The results showed JC had spared musical memory and impaired verbal memory, and a significant dissociation between them. The dissociation found could be due to the musical training brain plasticity. These findings support the idea of music stimuli as therapeutic tools for these patients.

Neutrophil percentage-to-albumin ratio is associated with cognitive function in adults aged over 60 years: An analysis of data from the NHANES 2011-2014.

The aging global population is increasing the attention to cognitive decline in older individuals. This study sought to examine the potential link between the neutrophil percentage-to-albumin ratio (NPAR) and cognitive function. We analyzed data from the National Health and Nutrition Examination Survey 2011-2014 using multivariate logistic regression and smooth curve fitting, to investigate the correlation between NPAR and cognitive performance. Restricted cubic spline analysis assessed the linear relationship with high-risk cognitive dysfunction, while piecewise linear regression identified thresholds. Subgroup analyses confirmed the consistency and reliability of our findings. Our study included data from 2759 individuals aged >60 years. NPAR showed a significant correlation with Consortium to Establish a Registry for Alzheimer's Disease (CERAD) word learning score, CERAD delayed recall score, total z-score and a high risk of cognitive dysfunction. Furthermore, there were statistically significant trends in the changes in CERAD word learning, digit symbol substitution test, and CERAD delayed recall scores as the NPAR quartile increased, these trends were inverted U-shaped. When the NPAR exceeded 14.57, there was a positive association with the likelihood of a high risk of cognitive impairment. The link between NPAR and cognitive performance was notably stronger in individuals with moderate body mass index and those aged 73-80 years. A strong link was observed between the NPAR and cognitive function. NPAR may serve as a tool to identify individuals at increased risk of cognitive decline.

From recorded to AI‐generated instructional videos: A comparison of learning performance and experience

AbstractGenerative AI (GAI) and AI‐generated content (AIGC) have been increasingly involved in our work and daily life, providing a new learning experience for students. This study examines whether AI‐generated instructional videos (AIIV) can facilitate learning as effectively as traditional recorded videos (RV). We propose an instructional video generation pipeline that includes customized GPT (Generative Pre‐trained Transformer), text‐to‐speech and lip synthesis techniques to generate videos from slides and a clip or a photo of a human instructor. Seventy‐six students were randomly assigned to learn English words using either AIIV or RV, with performance assessed by retention, transfer and subjective measures from cognitive, emotional, motivational and social perspectives. The findings indicate that the AIIV group performed as well as the RV group in facilitating learning, with AIIV showing higher retention but no significant differences in transfer. RV was found to offer a stronger sense of social presence. Although other subjective measures were similar between the two groups, AIIV was perceived as slightly less favourable. However, the AIIV was still found to be moderately to highly attractive, addressing concerns related to the uncanny valley effect. This research demonstrates that AIGC can be an effective tool for learning, offering valuable implications for the use of GAI in educational settings. Practitioner notesWhat is already known about this topic Instructional videos, especially those featuring a teacher's presence, have been widely used in second language learning to facilitate learning. Producing instructional videos is costly and burdensome. Generative AI has great potential for generating educational content. What this paper adds An AI‐generated instructional video (including generated lecture text, voice and appearance) demonstrated greater improvement in students' retention performance in English word learning than a traditional recorded video. Students perceived no significant differences between the AI‐generated instructional video and recorded video in satisfaction, motivation, trust, cognitive load, emotions and parasocial interaction dimensions, although the AI‐generated instructional video group reported slightly lower values. Despite AI‐generated instructional video eliciting a significantly lower value of social presence than recorded video, it led to a reduction in cognitive load and better performance. Implications for practice and/or policy We recommend using the AI‐generated instructional video in both physical and online classes for its positive effects on both learning achievement and learning experience. The findings indicate the equivalence principle in AI‐generated content, highlighting that the appearance, voice and lecture text generated by current AI technology have reached a certain level of quality.

The association between preserved ratio impaired spirometry (PRISm) and cognitive function among American older adults: the mediating role of systolic blood pressure

BackgroundRecent studies have drawn attention to the association between preserved ratio impaired spirometry (PRISm) and cognitive function decline. High systolic blood pressure (SBP) is a known risk factor for both PRISm and dementia. This study aimed to investigate whether elevated SBP may mediate the relationship between PRISm and cognitive function in older adults.MethodsThis study analyzed 732 participants aged ≥ 60 years who had completed spirometry and cognitive function tests in the National Health and Nutrition Examination Survey (NHANES) 2011–2012. Multivariable linear regression was employed to assess the relationship between PRISm and cognitive function, as measured through the Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) Word Learning sub-test, the Animal Fluency test (AFT), the Digit Symbol Substitution test (DSST), and global cognition tests. All cognitive tests were modeled as z-scores, and global cognition was calculated as the sum of the z-scores of the CERAD, AFT, and DSST. Mediation analyses were conducted to test the mediating effect of SBP on the association between PRISm and cognitive function.ResultsParticipants with PRISm had lower AFT (β = -0.300; 95% confidence interval [CI] = -0.479 to -0.122; p = 0.001), DSST (β = -0.157; 95% CI = -0.309 to -0.004; p = 0.044), and global cognition scores (β = -0.211; 95% CI = -0.369 to -0.053; p = 0.009) than those with normal spirometry, after adjusting for all potential confounders. SBP was considerably associated with AFT (β = -0.084; 95% CI = -0.162 to -0.005; p = 0.038) and DSST (β = -0.132; 95% CI = -0.207 to -0.057; p < 0.001), mediating 7.9% and 18.0% of the association of PRISm with cognitive function, respectively. Furthermore, SBP mediated 17.1% of the association of PRISm with global cognition.ConclusionsThe findings suggested the potential role of SBP as a mediator of associations between PRISm and cognitive decline in older adults.

Complex meanings shape early noun and verb vocabulary structure and learning.

Verbs and nouns vary in many ways-including in how they are used in language and in the timing of their early learning. We compare the distribution of semantic features that comprise early acquired verb and noun meanings and measure their effect on learning. First, couched in prior literature, we use semantic feature data to establish that features pattern on a hierarchy of complexity, with perceptual features being less complex than other features like encyclopaedic features. Second, given overall semantic and syntactic differences between nouns and verbs, we hypothesize that the preference for directly perceptible features observed for nouns will be attenuated for verbs. Building on prior work using semantic features and semantic networks in nouns, we find that compared to early learned nouns (N = 359), early learned verbs (N = 103) have meanings disproportionately built from complex information inaccessible to the senses. Third, we find that 16- to 30-month-old children's early noun and verb vocabularies (N = 3,804) show semantic relationships that differ in their use of this complex information from the beginning of vocabulary development. Last, we find that the complexity of nouns' and verbs' meanings affects their typical order of learning in early vocabulary development. Complexity differs in early noun and verb meanings, affects the semantic structure of children's vocabularies, and shapes the course of word learning. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Le rôle de la mémoire de travail dans l’acquisition incidente du vocabulaire en langue seconde durant la compréhension orale chez les enfants : une revue de littérature

Developing vocabulary to understand oral and written language in first language (L1) and second language (L2) is a major challenge for both adults and young learners. The learning of words also depends on the working memory (WM), which is central to human cognition and language learning; several studies have established its important role in learning L1 (Gathercole &amp; Baddeley, 1989, 1990) and, even more so, in L2 (Baddeley &amp; al., 1998; Gathercole &amp; al., 1999; Service &amp; Kohonen, 1995). Despite previous studies on the role of WM in the incidental acquisition of second language vocabulary during listening comprehension, the need for clarification on this role, especially in children, remains to be explored. The aim of this article is to present a synthesis of the literature on the role of WM in the incidental acquisition of second language vocabulary during listening comprehension in children to highlight this need for the necessary clarifications.

Word learning tasks as a window into the triggering problem for presuppositions

In this paper, we show that native speakers spontaneously divide the complex meaning of a new word into a presuppositional component and an assertive component. These results argue for the existence of a productive triggering algorithm for presuppositions, one that is not based on alternative lexical items nor on contextual salience. On a methodological level, the proposed learning paradigm can be used to test further theories concerned with the interaction of lexical properties and conceptual biases.

EPS mid-career prize: An integrated framework for the learning, recognition and interpretation of words.

In this article, I review the evidence on the involvement of sleep and consolidation in word learning and processing during language comprehension, focusing on implications for theory. The theoretical basis for the review is a complementary systems account of word learning involving flexible (hippocampal) and stable (cortical) pathways to lexical knowledge. I argue that the accumulated data are consistent with a role for both pathways in both learning and recognition of lexical items, with sleep and consolidation supporting the transfer of recent experience between the pathways. The level of involvement of each pathway is dependent on key factors, such as consistency with prior knowledge in the case of learning, and reliance on context and/or automaticity in the case of recognition. As a consequence, the notion of a mental lexicon cannot really be restricted to just the listener's stable knowledge about words: flexible knowledge and recent experiences are also important. Furthermore, I argue that the flexible pathway plays a critical role even in the absence of new lexical items. The available evidence suggests that this pathway encodes (and potentially consolidates) recent linguistic experiences, providing potential benefits to interpretation of subsequent language and the long-term retention of knowledge. In conclusion, I propose that a dual-pathway account incorporating both flexibility and stability is necessary to explain the learning, recognition, and interpretation of words.

Learning novel words for motion by speakers of structurally different languages

Abstract Speakers of different languages follow a three-way split in how they express motion events in speech—with a greater emphasis on manner in satellite-framed languages (English), path in verb-framed languages (Turkish), and comparable expression of manner and path in equipollently-framed languages (Chinese). According to the thinking-for-speaking account, these language-specific patterns can affect speakers’ representation of motion events but only when verbalizing the event. In this study, we asked whether language might influence learning novel words, particularly when the words were accompanied with gestures. We examined effects of language type (equipollent-framed: Chinese, satellite-framed: English, verb-framed: Turkish) and modality (speech-only, gesture+speech) on learning pseudowords for motion (manner, path). Our results showed that speakers of all three languages learned pseudowords for manner and path but with lower accuracy scores and slower rates of learning by Chinese speakers. Regardless of the language they spoke, participants learned manner words more accurately than path words, but with no added benefits of instruction with gesture+speech over speech-only. Taken together, our study extends the lack of language effect on nonverbal representation of events when not speaking to the domain of novel word learning across structurally different languages.

Word Learning in Arabic Diglossia in Children With Typical Language Development and Developmental Language Disorder.

Word learning requires the creation of phonological and semantic representations and links in long-term memory. Phonological distance of a given word from the spoken language affects children's lexical-phonological representations and processing. The study investigates the role of the phonological distance of Modern Standard Arabic (StA) words from the child's Spoken Arabic (SpA) vernacular in word learning in Arabic diglossia. It also examines whether, given their vulnerable phonological skills, children with developmental language disorder (DLD) show a stronger impact of phonological distance on word learning than children with typical language development (TLD). One hundred children with TLD and DLD in kindergarten and in first grade (25 per group) were tested on comprehension and production word-learning probes manipulating phonological distance. Learning monosyllabic and disyllabic nonwords encoding only SpA phonemes was compared with the learning of parallel nonwords encoding one unique StA consonant each. Repeated-measures analyses of variance showed higher word learning scores in children with TLD on both probes and for both syllable lengths. Moreover, all children fared significantly lower, in both comprehension and production probes, when the target stimulus was phonologically distant from the spoken language. Finally, an interaction effect was observed on the production probes, revealing differences in the developmental dynamics of phonological distance effects between the groups: Phonological distance hindered word learning among children with TLD in kindergarten, but among children with DLD in the first grade. The results support the role of phonological distance as a phonological complexity factor in word learning in Arabic diglossia. Furthermore, they show that the effect of phonological distance is complex and it interacts with modality, language aptitude, and grade level. The theoretical and clinical implications are discussed.

Better early than late: the temporal dynamics of pointing cues during cross-situational word learning

Abstract Learning the meaning of a word is a difficult task due to the variety of possible referents present in the environment. Visual cues such as gestures frequently accompany speech and have the potential to reduce referential uncertainty and promote learning, but the dynamics of pointing cues and speech integration are not yet known. If word learning is influenced by when, as well as whether, a learner is directed correctly to a target, then this would suggest temporal integration of visual and speech information can affect the strength of association of word–referent mappings. Across two pre-registered studies, we tested the conditions under which pointing cues promote learning. In a cross-situational word learning paradigm, we showed that the benefit of a pointing cue was greatest when the cue preceded the speech label, rather than following the label (Study 1). In an eye-tracking study (Study 2), the early cue advantage was due to participants’ attention being directed to the referent during label utterance, and this advantage was apparent even at initial exposures of word–referent pairs. Pointing cues promote time-coupled integration of visual and auditory information that aids encoding of word–referent pairs, demonstrating the cognitive benefits of pointing cues occurring prior to speech.

Word Learning in Bilingual Children at Risk for Developmental Language Disorder.

The purpose of this study was to compare the novel word learning skills between Cantonese-English bilingual children at risk for developmental language disorder (DLD) and their typically developing (TD) peers. Participants were 24 Cantonese-English bilingual preschool children at risk for DLD and 38 TD children. Each participant was presented with eight novel words in Cantonese (first language [L1]) and eight in English (second language [L2]) over eight weekly sessions. Children's existing lexical knowledge was measured using the moving-average number of different words in language samples in L1 and L2. Bilingual children at risk for DLD were scored lower than their TD peers for both languages over time. The role of lexical knowledge in children's word learning differed between the TD and DLD groups: Lexical knowledge in L1 was a predictor of L1 word learning in TD children, while lexical knowledge in L2 predicted L2 word learning in children at risk for DLD. In addition, significant cross-linguistic effects were found from L2 to L1 for both groups. This study underscores the complexity of novel word learning in bilingual children at risk for DLD. Clinically, these findings suggest the value of tracking learning trajectories in bilingual children across both languages.

The effect of classroom acoustics and noise on preschool children’s listening, learning, and wellbeing: A scoping review

Preschool is an important time for children to grow in their experiences, abilities, and knowledge before entering formal school. Therefore, it is vital that the classroom acoustic environment supports children’s listening, learning, and wellbeing. The aim of this scoping review was to determine what is known from the literature about the effect of classroom acoustics and noise on preschool children’s listening, learning, and wellbeing, and what the knowledge gaps are. The scoping review followed the PRISMA-ScR guidelines. Seven papers met the criteria to be included in the review. The findings suggest that poor classroom acoustic conditions and particularly high noise levels, can have a negative effect on preschool school children’s listening and wellbeing, but may not affect word learning at the SNRs investigated. Nevertheless, it would be beneficial to install acoustic solutions and manage noise in preschool classrooms to enhance children’s listening, learning, and wellbeing. Future research avenues are discussed.

When more is less: the impact of multimorphemic words on learning word meaning

Abstract Monomorphemic words have been found to influence category formation, as they encode one general category and thus activate it more than other related categories in the same lexical network. On the other hand, multimorphemic words can encode multiple categories from the same network by the multiple forms they combine. Superordinate categories are encoded by sub-lexical forms (e.g., affixes), while the entire words encode lower categories in the hierarchical structure. In the present study, we asked whether sub-lexical forms influence the learning of the meaning encoded by the entire word they underlie. We used Semitic-like words where sub-lexical forms (syllabic patterns) encode superordinate categories of manner-of-motion, and the entire words encode lower-level categories (moving characters). In our main experiment, a word-learning test showed that a shared syllabic pattern had a negative effect on the learning of the moving characters encoded by the entire word. This effect was revealed mainly in dimensions related to the superordinate category encoded by the pattern. The effect and its direction are beyond the expectations of enhanced category representations suggested in previous literature. We conclude that the effect of word-form is beyond the specific category they encode and can have different directions at different hierarchical levels.

Rapid formation of picture-word association in cats

It is well known that dogs are capable of following human verbal instructions. However, very little is known about the equivalent ability in cats. In this study, we used a switched stimuli task to examine whether cats rapidly form picture-word association, which is a fundamental ability for word learning. We presented cats with two meaningless picture-word combinations, in the habituation phase. Then, on half of the trials we switched the combination (switched condition), but the other half of the trials remained as before (non-switched condition). If cats rapidly form picture-word association, they were expected to look at the monitor for longer in the switched condition, reflecting detection of the change. We used human speech as stimuli in Exp.1, and mechanical sounds (electronic sounds) in Exp.2. Cats expressed detection of the switched combination in Exp.1, where human speech and objects were paired. However, in Exp.2 where non-social sounds and objects were paired, there was no statistical difference between switched and non-switched conditions, although there was a main effect of condition when the data from the two experiments were pooled. These results demonstrate that cats can rapidly form picture-word association. Further research should investigate whether domestication has played a role in this ability.