Rebecca L. Gómez's research while affiliated with The University of Arizona and other places

Publications (73)

Article
Sleep promotes the stabilization of memories in adulthood, with a growing literature on the benefits of sleep for memory in infants and children. In two studies, we examined the role of sleep in the retention and generalization of nonadjacent dependencies (NADs; e.g., a-X-b/c-X-d phrases) in an artificial language. Previously, a study demonstrated...
Article
Introduction Sleep restriction and fatigue negatively impacts learning in adults, but the effect of fatigue on learning in infants remains unexplored. During their first two years infants frequently cycle through periods of wakefulness and sleep. Thus, infants often encounter new information in an unrested state. How might mild fatigue impact their...
Article
Full-text available
Daytime napping contributes to retention of new word learning in children. Importantly, children transition out of regular napping between ages 3–5 years, and the impact of this transition on memory is unclear. Here, we examined the performance of both non-habitually napping children (nap 0–3 days per week, n = 28) and habitually napping children (...
Article
Purpose Children with developmental language disorder sometimes spontaneously repeat clinician models of morphemes targeted for treatment. We examine how spontaneous repeating of clinician models in the form of recasts associates with improved child production of those emerging morphemes. Method Forty-seven preschool children with developmental la...
Article
Napping after learning promotes consolidation of new information during infancy. Yet, whether naps play a similar role during toddlerhood, a stage when many children are beginning to transition away from napping, is less clear. In Experiment 1, we examined whether napping after learning promotes generalization of novel category exemplars 24 h later...
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High frequency words play a key role in language acquisition, with recent work suggesting they may serve both speech segmentation and lexical categorisation. However, it is not yet known whether infants can detect novel high frequency words in continuous speech, nor whether they can use them to help learning for segmentation and categorisation at t...
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When previously consolidated hippocampally dependent memory traces are reactivated they enter a vulnerable state in which they can be altered with new information, after which they must be re-consolidated in order to restabilize the trace. The existing body of literature on episodic reconsolidation largely focuses on the when and how of successful...
Article
Processes occurring during sleep contribute critically to the stabilization of new learning for long-term retention. Previously consolidated memory traces can be reactivated rendering memories labile again, and vulnerable to disruption or alteration. Across the phases of reactivation, modification, and re-consolidation, processing during sleep may...
Article
Prior research shows that contextual reminders can reactivate hippocampal links to previously consolidated memories, rendering them susceptible to being updated with new information which then is reconsolidated. Studies implicate sleep in the reconsolidation of reactivated memories, but it is unknown what role sleep plays in updating of a previousl...
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Human vocalizations contain both voice characteristics that convey who is talking and sophisticated linguistic structure. Inter-talker variation in voice characteristics is traditionally seen as posing a challenge for infant language learners, who must disregard this variation when the task is to detect talkers' shared linguistic conventions. Howev...
Article
Significance This paper demonstrates that typical children have enhanced learning of new words across sleep periods (naps) which is linked to the amount of time in rapid eye movement (REM) sleep and shows sleep-dependent learning losses in an atypically developing group of children with REM deficits (e.g., Down syndrome). The work yields both medic...
Article
Sleep-dependent memory processing is dependent on several factors at learning, including emotion, encoding strength, and knowledge of future relevance. Recent work documents the role of curiosity on learning, showing that memory associated with high-curiosity encoding states is retained better and that this effect may be driven by activity within t...
Article
Purpose: Statistical learning research seeks to identify the means by which learners, with little perceived effort, acquire the complexities of language. In the past 50 years, numerous studies have uncovered powerful learning mechanisms that allow for learning within minutes of exposure to novel language input. Method: We consider the value of i...
Article
Targeting memories during sleep opens powerful and innovative ways to influence the mind. We used targeted memory reactivation (TMR), which to date has been shown to strengthen learned episodes, to instead induce forgetting (TMR-forget). Participants were first trained to associate the act of forgetting with an auditory forget tone. In a second, se...
Preprint
Study Objectives: Prior research shows that a contextual reminder can temporarily destabilize a previously consolidated memory, rendering it susceptible to updating with new information after a period of re-consolidation. Studies implicate sleep in reconsolidation of destabilized memories, but it is unknown what role it plays in updating the memory...
Article
In this paper, we investigate the process by which new experiences reactivate and potentially update old memories. Such memory reconsolidation appears dependent on the extent to which current experience deviates from what is predicted by the reactivated memory (i.e. prediction error). If prediction error is low, the reactivated memory is likely to...
Article
A nap soon after encoding leads to better learning in infancy. However, whether napping plays the same role in preschoolers' learning is unclear. In Experiment 1 (N = 39), 3-year-old habitual and nonhabitual nappers learned novel verbs before a nap or a period of wakefulness and received a generalization test examining word extension to novel actor...
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Statistical structure abounds in language. Human infants show a striking capacity for using statistical learning (SL) to extract regularities in their linguistic environments, a process thought to bootstrap their knowledge of language. Critically, studies of SL test infants in the minutes immediately following familiarization, but long-term retenti...
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Research on word learning has focused on children?s ability to identify a target object when given the word form after a minimal number of exposures to novel word-object pairings. However, relatively little research has focused on children?s ability to retrieve the word form when given the target object. The exceptions involve asking children to re...
Article
Infants show robust ability to track transitional probabilities within language and can use this information to extract words from continuous speech. The degree to which infants remember these words across a delay is unknown. Given well-established benefits of sleep on long-term memory retention in adults, we examine whether sleep similarly facilit...
Article
Previous research shows that English-learning 7.5-month-olds are biased to segment speech at strong syllables consistent with the predominant trochaic (strong-weak) pattern of words in their language (Jusczyk, Houston, & Newsome, 1999). The present study asked whether 7.5-month-olds can use a familiar name to override their metrical bias and segmen...
Article
Artificial language studies have demonstrated that learners are able to segment individual word-like units from running speech using the transitional probability information. However, this skill has rarely been examined in the context of natural languages, where stimulus parameters can be quite different. In this study, two groups of English-speaki...
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Hippocampus has an extended developmental trajectory, with refinements occurring in the trisynaptic circuit until adolescence. While structural change should suggest a protracted course in behavior, some studies find evidence of precocious hippocampal development in the first postnatal year and continuity in memory processes beyond. However, a numb...
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Infants might be better at teasing apart dialects with different language rules when hearing the dialects at different times, since language learners do not always combine input heard at different times. However, no previous research has independently varied the temporal distribution of conflicting language input. Twelve-month-olds heard two artifi...
Article
Sleep is an important physiological state for children and adults to consolidate and generalize new learning. In this article, we review research on sleep-dependent memory consolidation and generalization in infants and preschool children, and place the findings in the context of the development of the neural systems underlying memory (the hippocam...
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Making sense of “expert advice” is among the many challenges of parenting. With the media circulating contrasting views on the importance of sleep in adolescence, parents and practitioners would benefit from an accessible synopsis of the scientific literature. We tackled the multifaceted issue of adolescent sleep and daytime functioning, presenting...
Article
Nonadjacent dependencies occur over one or more intervening units and require learners to track discontinuous sequential relationships. These discontinuous relationships are present at multiple levels in language (e.g., as seen in morphosyntactic dependencies and at the phonological level in vowel harmony). Experiments suggest that these dependenci...
Article
Sleep enhances generalization in adults, but this has not been examined in toddlers. This study examined the impact of napping versus wakefulness on the generalization of word learning in toddlers when the contextual background changes during learning. Thirty 2.5-year-old children (M = 32.94, SE = 0.46) learned labels for novel categories of object...
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Rationale: When a consolidated memory is reactivated, it becomes labile and modifiable. Recently, updating of reactivated episodic memory was demonstrated by Hupbach et al. (Learn Mem 14:47-53, 2007). Memory updating involves two vital processes-reactivation followed by reconsolidation. Here, we explored effects of psychosocial stress on episodic...
Article
In contrast to the study of memory reconsolidation in animals, research in humans is still in the early stages. This reflects the challenge to directly target memory reconsolidation without the use of pharmacological interventions that are often not safe for humans. Most studies therefore use paradigms in which new material is presented soon after...
Article
Probabilistically-cued co-occurrence relationships between word categories are common in natural languages but difficult to acquire. For example, in English, determiner-noun and auxiliary-verb dependencies both involve co-occurrence relationships, but determiner-noun relationships are more reliably marked by correlated distributional and phonologic...
Article
The use of reinforcement and rewards is known to enhance memory retention. However, the impact of reinforcement on higher-order forms of memory processing, such as integration and generalization, has not been directly manipulated in previous studies. Furthermore, there is evidence that sleep enhances the integration and generalization of memory, bu...
Chapter
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The ability to classify words into grammatical categories represents a major milestone in language acquisition. Once children have grouped words into separate grammatical categories, they can begin to generate novel utterances that conform to the morphosyntactic patterns in their language. One of the clearest signs that children have begun to gener...
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Purpose: Even without explicit instruction, learners are able to extract information about the form of a language simply by attending to input that reflects the underlying grammar. In this study, the authors explored the role of variability in this learning by asking whether varying the number of unique exemplars heard by the learner affects learn...
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We previously demonstrated that spatial context is a powerful reminder that can trigger memory updating (Hupbach, Hardt, Gomez, & Nadel in Learning & Memory, 15, 574-579 2008). In the present study, we asked whether the familiarity of the spatial context modulates the role of spatial context as a reminder. Since context familiarity can be easily ma...
Article
This article reviews research on the effects of sleep quality on cognitive outcomes in infancy, childhood, and adolescence; the effects of sleep restriction on cognitive measures in children; and experimental studies investigating differences in memory consolidation in sleep and wake states after learning in infant, child, and adolescent population...
Article
Sleep has been shown to aid a variety of learning and memory processes in adults (Stickgold, 2005). Recently, we showed that infants' learning also benefits from subsequent sleep such that infants who nap are able to abstract the general grammatical pattern of a briefly presented artificial language (Gomez, Bootzin & Nadel, 2006). In the present st...
Chapter
This chapter examines evidence that adults and infants can learn protocategories through morphological paradigms in which a subset of the categories are double-marked. It is possible that the requirement for double-marking of categories provides evidence for analogy as a category learning mechanism. Experimental results allow for a refinement of fa...
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Reactivation of apparently stable, long-term memory can render it fragile, and dependent on a re-stabilisation process referred to as "reconsolidation". Recently we provided the first demonstration of reconsolidation effects in human episodic memory (Hupbach, Gomez, Hardt, & Nadel, 2007; Hupbach, Hardt, Gomez, & Nadel, 2008). Memory for a set of ob...
Article
A decade of research suggests that infants readily detect patterns in their environment, but it is unclear how such learning changes with experience. We tested how prior experience influences sensitivity to statistical regularities in an artificial language. Although 12-month-old infants learn adjacent relationships between word categories, they do...
Article
In contrast to the accepted wisdom that memories become fixed over time, recent evidence has renewed interest in the dynamic quality of memory, suggesting that even old memories are subject to revision and reconsolidation given the right circumstances. We discuss a new paradigm developed to study reconsolidation of episodic memory in humans, showin...
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Understanding the dynamics of memory change is one of the current challenges facing cognitive neuroscience. Recent animal work on memory reconsolidation shows that memories can be altered long after acquisition. When reactivated, memories can be modified and require a restabilization (reconsolidation) process. We recently extended this finding to h...
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Learners exposed to an artificial language recognize its abstract structural regularities when instantiated in a novel vocabulary (e.g., Gómez, Gerken, & Schvaneveldt, 2000; Tunney & Altmann, 2001). We asked whether such sensitivity accelerates subsequent learning, and enables acquisition of more complex structure. In Experiment 1, pre-exposure to...
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Recent demonstrations of "reconsolidation" suggest that memories can be modified when they are reactivated. Reconsolidation has been observed in human procedural memory and in implicit memory in infants. This study asks whether episodic memory undergoes reconsolidation. College students learned a list of objects on Day 1. On Day 2, they received a...
Article
Infants engage in an extraordinary amount of learning during their waking hours even though much of their day is consumed by sleep. What role does sleep play in infant learning? Fifteen-month-olds were familiarized with an artificial language 4 hr prior to a lab visit. Learning the language involved relating initial and final words in auditory stri...
Article
Unlabelled: Non-adjacent dependencies characterize numerous features of English syntax, including certain verb tense structures and subject-verb agreement. This study utilized an artificial language paradigm to examine the contribution of item variability to the learning of these types of dependencies. Adult subjects with and without language-base...
Article
Recent research on human learning has revealed a pervasive ability to track statistical structure in adulthood and infancy. Because statistical information abounds in visual and linguistic structure, statistical learning has potential for playing an important role in the acquisition of complex skill. This chapter summarizes the literature on statis...
Article
We investigated the developmental trajectory of nonadjacent dependency learning in an artificial language. Infants were exposed to 1 of 2 artificial languages with utterances of the form [aXc or bXd] (Grammar 1) or [aXd or bXc] (Grammar 2). In both languages, the grammaticality of an utterance depended on the relation between the 1 st and 3rd eleme...
Article
The present experiments investigate how young language learners begin to acquire form-based categories and the relationships between them. We investigated this question by exposing 12-month-olds to auditory structure of the form aX and bY (infants had to learn that a-elements grouped with Xs and not Ys). Infants were then tested on strings from the...
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Research on statistical learning in adults and infants has shown that humans are particularly sensitive to statistical properties of the input. Early experiments in artificial grammar learning, for instance, show a sensitivity for transitional n-gram probabilities. It has been argued, however, that this source of information may not help in detecti...
Article
Two experiments investigated learning of nonadjacent dependencies by adults and 18-month-olds. Each learner was exposed to three-element strings (e.g., pel-kicey-jic) produced by one of two artificial languages. Both languages contained the same adjacent dependencies, so learners could distinguish the languages only by acquiring dependencies betwee...
Article
Unlabelled: Sixteen adults with language/learning disabilities (L/LD) and 16 adults who lacked a personal or familial history of L/LD participated in a study designed to test sensitivity to word order cues that signaled grammatical versus ungrammatical word strings belonging to an artificial grammar. In an exposure phase, participants heard word s...
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The rapidity with which children acquire language is one of the mysteries of human cognition. A view held widely for the past 30 years is that children master language by means of a language-specific learning device. An earlier proposal, which has generated renewed interest, is that children make use of domain-general, associative learning mechanis...
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In two experiments, we examined the extent to which knowledge of sequential dependencies and/or patterns of repeating elements is used during transfer in artificial grammar learning. According to one view of transfer, learners abstract the grammar's sequential dependencies and then learn a mapping to new vocabulary at test (Dienes, Altmann, & Gao,...
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Two experiments used a novel method called Pathfinder to examine whether the salience of temporal cues embedded in event structure increases developmentally and whether people link event actions by simple adjacency relationships or embed them in an organized whole. A sequential format for eliciting knowledge was compared with a less structured form...
Article
Four experiments used the head-turn preference procedure to assess whether infants could extract and remember information from auditory strings produced by a miniature artificial grammar. In all four experiments, infants generalized to new structure by discriminating new grammatical strings from ungrammatical ones after less than 2 min exposure to...
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Limitations of using fixed sequences of events in studies of learning in the sequential reaction-time task led us to develop a probabilistic version of the task. When sequences occur probabilistically, transitions usually follow a sequence, but with some small probability, events occur out of sequence. This variation on the paradigm provides new ev...
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The primary objective of the research project was to investigate models for monitoring and predicting subjective workload in the control of complex systems. Such models would enable systems to use workload levels to distribute tasks optimally in addition to identifying levels of workload, which could lead to a serious breakdown in performance. In t...
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Implicit and explicit learning are sensitive to various degrees of complexity and abstractness, ranging from knowledge of first-order dependencies and specific surface structure to second-order dependencies and transfer. Three experiments addressed whether implicit learning is sensitive to this entire range of information or whether explicit knowle...
Article
Network representation was used to assess knowledge obtained during a teaching methodology course in elementary mathematics. Participants were the course instructor, 4 teacher educators, and 53 prospective teachers. Relatedness ratings on key terms were used to construct associative networks. Teacher educator networks shared significant similaritie...
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Network representation was used to assess knowledge obtained during a teaching methodology course in elementary mathematics. Participants were the course instructor, 4 teacher educators, and 53 prospective teachers. Relatedness ratings on key terms were used to construct associative networks. Teacher educator networks shared significant similaritie...
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Knowledge representation was used to characterize beliefs in patients with Environmental Illness/Multiple Chemical Sensitivity (EI/MCS). EI/MCS patients, allergy and asthma patients, doctors and controls made relatedness judgments on concepts relevant to EI/MCS. Associative networks showed that EI/MCS patients viewed these concepts differently from...
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Ss were trained on letter pairs or letter strings in an artificial grammar learning paradigm to determine the extent to which implicit learning is driven by simple associative knowledge. Learning on strings resulted in sensitivity to violations of grammaticality and in transfer to a changed letter set. Learning on letter pairs resulted in less sens...
Article
This study is an extension of an earlier investigation of undergraduate students' acquisition of key pedagogical concepts in a physical education teaching methodology course. In that study, Pathfinder, a method for eliciting associative memory networks, was used to describe and compare the pedagogical knowledge structures of students to that of the...
Article
The purpose of the article is to describe the relationships of prospective teachers' pedagogical knowledge structures to performance in a physical education teaching methods class. The Pathfinder network scaling algorithm was used to elicit knowledge structures prior to and after the prospective teachers completed the class. The findings indicated...
Article
This exploratory study examined the structure of declarative knowledge about pedagogy housed in the memory of an experienced teacher educator, and it sought to determine the teacher educator's influence on the development of declarative knowledge structures in undergraduate students enrolled in three sections of a physical education teaching method...
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Abstract An important aspect of language acquisition involves learning nonadjacent dependencies between words, such as subject/verb agreement,for tense or number,in English. Despite the fact that infants and adults can track adjacent relations in order to infer the structure of sequential stimuli, the evidence is not conclusive for learning nonadja...

Citations

... Observations of toddlers who do or do not continue to nap habitually have supported this hypothesis. In Esterline and Gómez's (2021) study, 4-year-olds who had ceased taking habitual naps remembered new word-meaning associations regardless of whether they napped or not after training, whereas habitual nappers who remained awake between learning and testing did not show retention of the words. In Kurdziel et al.'s (2013) study, spatial memories decayed over 5 hours spent awake in 3-to 5-year-old habitual nappers but not in nonhabitual nappers. ...
... In the present study, this tended to be true for the poorest responders in the Short Recast condition, but children in the Extended Recast condition tended to stay near baseline past 10 sessions, regardless of whether they were ultimately treatment responders or not. Past analyses have also suggested that when children begin to repeat the clinician's recast, they also soon begin to use their Target form on their own (Nicholas et al., 2021). As with the children in the present study, they do not seem to improve on their morpheme use once treatment has ended, suggesting clinicians should ensure the child has full competence before discontinuing treatment (Hall & Plante, 2020). ...
... At the age of testing (between 9 and 11 months old), infants already know many highly frequent words (Johnson, 2016) and are thus used to encountering these familiar words in the speech input. Highly familiar words might function as lexical anchors in speech processing (Frost, Dunn, Christiansen, Gómez, & Monaghan, 2020;Frost, Monaghan, & Christiansen, 2019), binding infants' attention to the stimulus and motivating them to explore the signal even further. For example, 9-month-olds benefit in their word segmentation from words that overlap in rimes with highly familiar words (Altvater-Mackensen & Mani, 2013). ...
... Research with preschoolers suggests that napping and night sleep play complementary roles for consolidating information. For example, 2.5-year-olds who napped after an object categorization task were better able to generalize at test the next day than children who slept only at night, suggesting that the function of napping was to retain new information until it could be generalized during the alternating rapid eye movement (REM) and non-REM (NREM) cycles characterizing night sleep (Werchan et al., 2021). Similarly, napping benefitted preschoolers' procedural learning of a serial reaction time task, but not until the next day after they also had a night of sleep. ...
... In clinical psychodynamic psychotherapy and psychoanalysis, it is certainly useful to know that sleeping and dreaming facilitate the storage of recently acquired information as long-term memories (Born et al., 2006;Langille & Brown, 2018;Simon et al., 2020;Stickgold et al., 2001). Actually, the emotional pain that brings patients to psychotherapy is rooted in embodied and implicit memories, together with their associated a"ects. ...
... Uykunun bellekteki rolüne ilişkin alternatif bir teori, SWA'nın sinaptik güçlerin doygunluğunu önlemek için gerekli olan küresel bir sinaptik küçültmeyi desteklediğini öne sürer. Uyku sırasında meydana gelen süreçler, uzun süreli kalıcılık için yeni öğrenmenin dengelenmesine kritik olarak katkıda bulunur (14). ...
... Memory consolidation is an active process that integrates newly encoded information into long-term memory networks and is more efficient during sleep [41]. As an example, a reduction in sleep spindle density has been associated with lower memory consolidation in older adults [42][43][44]. Currently, this topic is rarely addressed in BC patients: only one study has reported a higher spindle frequency and lower slow wave amplitude in BC patients not treated with chemotherapy compared to age-matched healthy women [45]. ...
... However, when emotional memories were probed again following subsequent overnight sleep, the advantage of napping emerged: children showed superior 24-h delayed recognition of the face stimuli if they napped the previous day compared to when they stayed awake following learning (Kurdziel et al., 2018). This is in contrast to studies of neutral declarative memory in the same age group, which find sleep benefits immediately following the nap (Kurdziel et al., 2013;Spanò et al., 2018;Williams & Horst, 2014). ...
... In addition, individual differences in intrinsic hippocampal-striatal functional connectivity have been linked to affect-related diversity in physical exploration (Heller et al., 2020). Similar to extrinsic rewards, high states of curiosity and underlying mesolimbic functional connectivity increase the likelihood of encountered information to be remembered later on (Duan et al., 2020;Fandakova & Gruber, 2021;Galli et al., 2018;Gruber et al., 2014;Kang et al., 2009;Lang et al., 2022;Ligneul et al., 2018;McGillivray et al., 2015;Murphy et al., 2021;Stare et al., 2018). Several states of incentive salience have been associated with activity in the cortico-mesolimbic dopaminergic circuit (e.g., Bromberg-Martin & Hikosaka, 2009;Frank et al., 2019;Gruber et al., 2014) but it remains an open question whether dissociable intrinsic functional networks reveal the degree to which an individual benefits from different states of incentive salience. ...
... In fact, limited talker variability seems to be particularly useful for learning talker-specific information (see also Choi & Shukla, 2021). For example, when learners are presented with multiple underlying regularities (i.e., artificial speech streams), a change in talker that happens in tandem with the change in regularity helps learners separately track each set of regularity statistics, which they are unable to do when both speech streams (with the different regularities) are produced by the same talker (Antovich & Graf Estes, 2018;Gonzales, Gerken, & Gómez, 2018;Weiss, Gerfen, & Mitchel, 2009). ...