Verb-noun Pairs Research Articles

Turkish EFL learners’ knowledge, perception, and production of suprafixes as part of lexical competence

Vocabulary and grammar are essential to language proficiency (Richards, 2015). Some word families and grammatical categories can only be distinguished by prosodic properties such as suprafixes. In English, specific noun/adjective-verb pairs, sometimes called disyllabic words, receive primary stress on different syllables. Typically, nouns receive trochaic stress, while verbs receive iambic stress. Research shows that suprafixes are difficult for language learners from diverse linguistic and prosodic backgrounds. Given the scarcity of research in specific contexts (e.g., Turkish EFL), this study explored Turkish EFL learners’ suprafixational knowledge, perception, and production. Participants were B1-level preparatory school students of a prominent state university. Data were collected through a test of knowledge (n=110), a test of perception (n=80), and a test of production (n=50). Results showed poor knowledge, perception, and production of suprafixes among Turkish EFL learners. Minor variations in suprafixational competence were observed in males and females. Additionally, different noun-verb pairs posed a challenge for both genders. The results were discussed, and recommendations for future research were made. The study concludes that Turkish EFL learners must receive suprasegmental training focusing on suprafixes.

Toward Egocentric Compositional Action Anticipation with Adaptive Semantic Debiasing

Predicting the unknown from the first-person perspective is expected as a necessary step toward machine intelligence, which is essential for practical applications including autonomous driving and robotics. As a human-level task, egocentric action anticipation aims at predicting an unknown action seconds before it is performed from the first-person viewpoint. Egocentric actions are usually provided as verb-noun pairs; however, predicting the unknown action may be trapped in insufficient training data for all possible combinations. Therefore, it is crucial for intelligent systems to use limited known verb-noun pairs to predict new combinations of actions that have never appeared, which is known as compositional generalization. In this article, we are the first to explore the egocentric compositional action anticipation problem, which is more in line with real-world settings but neglected by existing studies. Whereas prediction results are prone to suffer from semantic bias considering the distinct difference between training and test distributions, we further introduce a general and flexible adaptive semantic debiasing framework that is compatible with different deep neural networks. To capture and mitigate semantic bias, we can imagine one counterfactual situation where no visual representations have been observed and only semantic patterns of observation are used to predict the next action. Instead of the traditional counterfactual analysis scheme that reduces semantic bias in a mindless way, we devise a novel counterfactual analysis scheme to adaptively amplify or penalize the effect of semantic experience by considering the discrepancy both among categories and among examples. We also demonstrate that the traditional counterfactual analysis scheme is a special case of the devised adaptive counterfactual analysis scheme. We conduct experiments on three large-scale egocentric video datasets. Experimental results verify the superiority and effectiveness of our proposed solution.

К вопросу о пространственных отношениях в финском языке

The study presents a thorough review, conducted from a linguocultural perspective, of the primary principles used in expressing spatial relations in Finnish through linguistic categories and means. It covers the genesis and changes of cases in the Finnish language, paying special attention to those that conveyed spatial meaning at a particular stage of the language development. The issue is particularly interesting as there is an ongoing debate about the application of certain cases owing to the significant influence of dialects in Finnish, which is characterized by an egocentric spatial orientation. The study aimed to explore the instances of diverging spatial representations regarding the direction of actions in different linguocultures, with Finnish and Russian linguocultures taken as examples. The research applied a quantitative analysis approach to examine competing forms, with a corpus of YLE newspaper texts from 2011 to 2020 as the research material. The study analyzed instances of differing depictions through verb-noun pairs and verbs related to sensual and tangible perception (vaikutelmaverbit). Additionally, we investigated the variations in verb usage of the latter and the verb ‘käydä’ (‘to go, to visit’), which is generally presented as ‘static’, but expresses its dynamic qualities in different collocations. The analysis indicates that the system of spatial relations in Finnish is characterized by linguocultural specificity and is expressed grammatically through local and non-local case forms, prepositions, postpositions, and verb-noun syntactic structures. Furthermore, one and the same name in the internal and external case forms may convey not only distinct grammatical but also different lexical meanings. The use of local cases with certain verbs can lend expressions and verbs a figurative meaning that is only loosely connected to position in space.

The iconic motivation for the morphophonological distinction between noun-verb pairs in American Sign Language does not reflect common human construals of objects and actions.

Across sign languages, nouns can be derived from verbs through morphophonological changes in movement by (1) movement reduplication and size reduction or (2) size reduction alone. We asked whether these cross-linguistic similarities arise from cognitive biases in how humans construe objects and actions. We tested nonsigners' sensitivity to differences in noun-verb pairs in American Sign Language (ASL) by asking MTurk workers to match images of actions and objects to videos of ASL noun-verb pairs. Experiment 1a's match-to-sample paradigm revealed that nonsigners interpreted all signs, regardless of lexical class, as actions. The remaining experiments used a forced-matching procedure to avoid this bias. Counter our predictions, nonsigners associated reduplicated movement with actions not objects (inversing the sign language pattern) and exhibited a minimal bias to associate large movements with actions (as found in sign languages). Whether signs had pantomimic iconicity did not alter nonsigners' judgments. We speculate that the morphophonological distinctions in noun-verb pairs observed in sign languages did not emerge as a result of cognitive biases, but rather as a result of the linguistic pressures of a growing lexicon and the use of space for verbal morphology. Such pressures may override an initial bias to map reduplicated movement to actions, but nevertheless reflect new iconic mappings shaped by linguistic and cognitive experiences.

Early metrical and lexicographical evidence for functional stress-shifts

Only three English diatones,outlaw,rebel,record, out of the current 235-item list in Hotta (2015), are on record prior to the seventeenth century; the latest record of diatonicoutlawis 1786 (Sherman 1975: 63). Whether this type of functional prosodic contrast was inherited or innovative is controversial. We revisit the Old English metrical evidence for functional stress-shifting and present new attestations of verb–noun pairs in Middle English verse in an effort to establish if the limited inherited stress-shifting model survives, and, if so, whether or how it accommodates the incoming loan vocabulary. The additional verse attestations support the idea of continuity, yet the scarcity of data falls short of statistical verifiability. A search into detailed lexicographical information for 1200–1550 reinforces the hypothesis of continuity by documenting the differential patterns of borrowing of nouns and verbs, prefixed and unprefixed. Taken together, these two sources endorse a proposal that in its earliest stages functional stress-shifting was predicated on prefixation, and that the ongoing conflict between prefixal defooting andAlign-L(Root, PrWd) in ME is a necessary component of the diachronic account of English prosody.

A multi-level analytic framework for disaster situational awareness using Twitter data

During a natural disaster, mining messages from social media platforms can facilitate local agencies, rescue teams, humanitarian aid organizations, etc., to track the situational awareness of the public. However, for different stakeholders, the concerns about people’s situational awareness in a natural disaster event are different. Therefore, I developed a Twitter-based analytic framework to take perception-level situational awareness, humanitarian-level situational awareness, and action-level situational awareness into consideration. Specifically, perception-level situational awareness mainly reflects people’s perception of the ongoing natural disaster event (i.e., if people are discussing the disaster event). Decision-makers can rapidly have a big picture of severely impacted regions. Humanitarian-level situational awareness represents tweets that are associated with the humanitarian categories based on the definition from the United Nations Office for the Coordination of Humanitarian Affairs. The detection of humanitarian-level situational awareness can help response teams understand the specific situations and needs of local communities. In terms of the action-level situational awareness, I extracted noun-verb pairs in each tweet to explicitly represent the specific event described in a given tweet, so that the response teams can quickly act on the situation case by case. Moreover, to shed light on disaster resilience and social vulnerability, I further examined the demographic characteristics of three levels of situational awareness. I empirically demonstrated the analytic framework using geo-tagged tweets during 2018 Hurricane Michael.

Partial Dependency of Vowel Reduction on Stress Shift: Evidence from English -ion Nominalization

While classic theories utilize the comparison between cómp[ɛ]nsate going to comp[ə]nsátion and cond[ɛ́]nse going to cond[ɛ]nsátion to argue that stressed vowels are immune to reduction in multiple affixations (e.g., SPE), this paper presents a corpus-based case study that looks into this quantitative interaction between vowel reduction and stress shift during English -ion nominalization and offers discoveries that go against the classic claim. After analyzing 1,047 verb-noun target pairs extracted from the CELEX2 dictionary corpus, this study claims that vowel reduction only partially depends on its stress-bearing feature and that the suffix type, the stress shift pattern, vowel tenseness, and crucially some lexically specific constraints also predict vowel reduction. This finding is further supported by an OT analysis and a statistical model. As a quantitative study that relies on an exhaustive list of English samples to derive theoretical analysis, this research not only provides new insights into this long-lasting debate but also aims to highlight the significance of incorporating large data samples for a complete understanding of phonological phenomena.

Action nounsvs.nouns as bases for denominal verbs in Czech: A case study on directionality in derivation

Suffixless action nouns are mostly analysed as deverbal derivatives (e.g., výběr ‘choice’ < vybírat ‘to choose.ipfv’), but dictionaries ascribe the reverse direction to some noun–verb pairs ( útok ‘attack’ > útočit ‘to attack.ipfv’) despite being both formally and semantically close to the former type. The question is addressed in the present study of whether any linguistic features can be identified in pairs of suffixless nouns and directly corresponding verbs that would speak in favour of one or the other direction. The analysis of 250 Czech suffixless nouns reveals a correlation between the number of directly related verbs derived by suffixes and the direction as recorded in the dictionaries: While deverbal nouns correspond mostly to a pair of verbs with different (aspect-changing) suffixes (cf. výběr ‘choice’ : vybrat/ vybírat ‘to choose.pfv/ipfv’), nouns that are bases for verbs tend to share the root with a single (imperfective) verb ( útok ‘attack’ : útočit ‘to attack.ipfv’). This correlation is elaborated into two different paradigms, one being based on verbal roots and the other on nominal roots, which might be applicable in hypothesizing the direction also with nouns that are not covered by the dictionaries.

Lexique raisonné du français académique par Catherine Fuchs et Sylvie Garnier

Reviewed by: Lexique raisonné du français académique par Catherine Fuchs et Sylvie Garnier Jessica L. Sturm Fuchs, Catherine, et Sylvie Garnier. Lexique raisonné du français académique. Tome 1. Ophrys, 2020. ISBN 978-2-7080-1555-5. Pp. 317. The focus on verb-noun pairs—which verbs can take which nouns as objects—makes this text an excellent reference for non-native speaking graduate students of French, as well as a pedagogical tool for advanced undergraduates. The authors rightly suggest that their work is useful for: students of French as a second language at the B2/C level; native speakers of French who wish to enrich their lexicon; teachers of French as a foreign language; translators/translation instructors. Lexique raisonnée du français académique is designed to help students avoid false cognates and overuse of generic verbs, and to help them refine their comprehension. In teaching, it can be used to help students observe the language in context, where they can analyze the conditions of use. Specifically, this text focuses on, and is divided into, three parts respectively labeled: verbs of starting, continuing, and finishing. Each Partie of the book, subdivided into commencer and faire commencer, begins with an introductory table of verbs and ends with a summary table and exercises (answers can be found at: <http://www.ophrys.fr/fr/catalogue-detail/2309/lexique-raisonne-du-francais-academique-tome-1.html>). In between, each Partie features a series of notes on individual verbs, followed by comparative notes on pairs of verbs such as se dégager/se faire jour. The individual notes are divided into two parts: Quelque chose [verb] and Ce qui [verb]. Each part gives a definition or precision of the verb's usage, along with several examples. The examples are organized by type: un objet intellectuel, un objet social ou institutionnel, un état, un processus, une période de temps. Symbols such as the warning triangle or magnifying glass call the reader's attention to particularities of each verb (and are defined before the introduction). The comparative notes begin with a table demonstrating which verb is appropriate for which (type of) noun, followed by elaborate examples. Exercises, found at the end of each Partie, explore the precisions and particularities of each pair of verbs. One could create an entire linguistics or academic writing course around this text or use specific notes and their affiliated exercises as independent units in a language, culture, or linguistics course. All of these tables, notes, and exercises combine to create a text that is an excellent resource for anyone using, learning, or teaching the French language. [End Page 287] Jessica L. Sturm Purdue University (IN) Copyright © 2021 American Association of Teachers of French

Traços categorizadores na derivação de pares nome-verbo em Libras

A morfologia tem por objeto de estudo a estrutura, formação e categorização de unidades lexicais e apresenta diferentes perspectivas de análise. Sob o aporte gerativista, o componente lexical dispõe de palavras previamente categorizadas e traços que são o input para a sintaxe (CHOMKSY, 1970). Em Halle e Marantz (1993), a morfologia não existe per se, mas está distribuída em diferentes lugares da arquitetura da gramática e deve espelhar as operações sintáticas. A partir desse viés, assumimos que a formação de sinais e estruturas complexas se dá em um único locus gerativo, o componente sintático.Assim, coloca-se que em uma língua não oral, a Libras, raízes acategoriais são concatenadas a traços abstratos, por meio de regras de inserção de conteúdo fonológico, para se formarem os sinais. Neste artigo, evidenciamos pares nome-verbo que apresentam uma mesma forma superficial e são diferenciadossintaticamente por um v ou por um n categorizador, com realização fonológica Ø ou com realização específica em alguns membros dos pares. Essa proposta corrobora o Princípio da Uniformidade (CHOMSKY, 2001), pois, na ausência de fortes evidências que apontem para o contrário, reforçamos que as línguas são uniformes e as variações são restritas a propriedades facilmente identificáveis dos enunciados.

Children’s Initial Understanding of the Related Meanings of Polysemous Noun-Verb Pairs

ABSTRACT The cross-categorical use of nouns and verbs poses a challenging problem to young language learners because they are known to be less willing to accept that a single form of a word be used for more than one linguistic purpose (e.g., one-form/one-function principle). The present study investigated whether children under 3 years of age are able to quickly understand the cross-categorical use of object-function denoting nouns (e.g., This is a nice brush) as denominal verbs (e.g., Brush your teeth) when the semantic relationship between the objects, referred to by the nouns, and their functions, referred to by the denominal verbs, is transparent. French-speaking 2.5-year-olds were taught the cross-categorical use of three novel parent noun and denominal verb pairs by presenting these pairs with semantic information coupled with noun and verb distributional cues. The results from Experiment 1 showed that, contrary to the one-form/one-function principle, 2.5-year-old children were able to fast-map the novel object-function noun-verb pairs onto novel objects and actions they had never seen before after three exemplars were shown. However, the results from Experiment 2 indicated that after being taught the cross-categorical use of two novel object-function noun-verb pairs, 2.5-year-olds were not able to interpret the third novel object-function noun-verb pair correctly when it was presented with semantic information coupled with noun distributional cues only. These findings suggest that although 2.5-year-olds do not have a strong one-form/one-function mapping constraint, they are not able to quickly form abstract class extension rules that enable them to immediately understand the cross-categorical use of new noun-verb pairs they have not heard before.

Unsupervised Detection of Sub-Events in Large Scale Disasters

Social media plays a major role during and after major natural disasters (e.g., hurricanes, large-scale fires, etc.), as people “on the ground” post useful information on what is actually happening. Given the large amounts of posts, a major challenge is identifying the information that is useful and actionable. Emergency responders are largely interested in finding out what events are taking place so they can properly plan and deploy resources. In this paper we address the problem of automatically identifying important sub-events (within a large-scale emergency “event”, such as a hurricane). In particular, we present a novel, unsupervised learning framework to detect sub-events in Tweets for retrospective crisis analysis. We first extract noun-verb pairs and phrases from raw tweets as sub-event candidates. Then, we learn a semantic embedding of extracted noun-verb pairs and phrases, and rank them against a crisis-specific ontology. We filter out noisy and irrelevant information then cluster the noun-verb pairs and phrases so that the top-ranked ones describe the most important sub-events. Through quantitative experiments on two large crisis data sets (Hurricane Harvey and the 2015 Nepal Earthquake), we demonstrate the effectiveness of our approach over the state-of-the-art. Our qualitative evaluation shows better performance compared to our baseline.

The noun-verb distinction in Catalan Sign Language

Abstract This paper investigates the morpho-phonological differences between the members of related noun-verb pairs in Catalan Sign Language. Like parallel investigations in other sign languages, our experimental work provides evidence that the major differentiating factors between related nouns and verbs materialize in the movement component of signs and non-manual markers, thus providing empirical support to the hypothesis that most noun-verb pairs have different morpho-phonological properties. We distinguish different types of movements, which we categorize into four regular morphological subgroups. We also take into account a fifth group that shows no apparent movement distinction. Concerning non-manual markers, we provide empirical evidence that nouns are mostly produced simultaneously with mouthing, in contrast to verbs, which in a smaller proportion are produced mainly with mouth gestures. Crucially, the fifth group presents the largest ratio of mouthing for nouns and even for verbs. We address these findings within an exo-skeletal theoretical syntactic approach (Borer 2005a,b, 2013, 2014).

Put on your (fNIRS) thinking cap: Frontopolar activation during augmented state creativity

Thinking creatively requires the ability to consciously augment creative insight through processes such as analogical reasoning and relational cognition. Prior work has examined augmented states of creativity using a modified verb generation task which requires brief engagement in attempts to think creatively during MRI. In this study, we employed the verb generation task to examine augmented creative states and frontopolar cortex activation in a less-constrained setting using functional near infrared spectroscopy (fNIRS). Participants (n = 29) were presented with a noun and were required to think of an associated verb. In 50% of the trials, participants were instructed to ‘think creatively’ (cued condition) as opposed to stating the first or most prominent verb that came to mind (uncued condition). The task was administered in French to native speakers. Hemodynamic responses were recorded over the frontopolar cortex using fNIRS. The relatedness of the noun-verb pairs was calculated and other measures of creativity (the Alternate Uses Test, Compound Remote Associate Test and the Biographical Inventory of Creative Behaviors) were recorded. We showed that in the cued condition, semantic scores were higher (indicating more creative responses), positively associated with other measures of creativity, and changes in oxygenated hemoglobin were larger and more extensive in the left frontopolar cortex, than in the uncued condition. Our findings support the use of the verb generation task (administered in French) to augment creative states and provides further validation of the use of the task to capture creativity (i.e., processes involved in generating creative responses through distant associations). We highlight the use of fNIRS to measure associated regional changes in frontopolar cortex activity during augmented states of creativity.

AudioPairBank: towards a large-scale tag-pair-based audio content analysis

Recently, sound recognition has been used to identify sounds, such as the sound of a car, or a river. However, sounds have nuances that may be better described by adjective-noun pairs such as “slow car” and verb-noun pairs such as “flying insects,” which are underexplored. Therefore, this work investigates the relationship between audio content and both adjective-noun pairs and verb-noun pairs. Due to the lack of datasets with these kinds of annotations, we collected and processed the AudioPairBank corpus consisting of a combined total of 1123 pairs and over 33,000 audio files. In this paper, we include previously unavailable documentation of the challenges and implications of collecting audio recordings with these types of labels. We have also shown the degree of correlation between the audio content and the labels through classification experiments, which yielded 70% accuracy. The results and study in this paper encourage further exploration of the nuances in sounds and are meant to complement similar research performed on images and text in multimedia analysis.

Simultaneous Processing of Noun Cue and to-be-Produced Verb in Verb Generation Task: Electromagnetic Evidence.

A long-standing but implicit assumption is that words strongly associated with a presented cue are automatically activated in the memory through rapid spread of activation within brain semantic networks. The current study was aimed to provide direct evidence of such rapid access to words’ semantic representations and to investigate its neural sources using magnetoencephalography (MEG) and distributed source localization technique. Thirty-three neurotypical subjects underwent the MEG recording during verb generation task, which was to produce verbs related to the presented noun cues. Brain responses evoked by the noun cues were examined while manipulating the strength of association between the noun and the potential verb responses. The strong vs. weak noun-verb association led to a greater noun-related neural response at 250–400 ms after cue onset, and faster verb production. The cortical sources of the differential response were localized in left temporal pole, previously implicated in semantic access, and left ventrolateral prefrontal cortex (VLPFC), thought to subserve controlled semantic retrieval. The strength of the left VLPFC’s response to the nouns with strong verb associates was positively correlated to the speed of verbs production. Our findings empirically validate the theoretical expectation that in case of a strongly connected noun-verb pair, successful access to target verb representation may occur already at the stage of lexico-semantic analysis of the presented noun. Moreover, the MEG results suggest that contrary to the previous conclusion derived from fMRI studies left VLPFC supports selection of the target verb representations, even if they were retrieved from semantic memory rapidly and effortlessly. The discordance between MEG and fMRI findings in verb generation task may stem from different modes of neural activation captured by phase-locked activity in MEG and slow changes of blood-oxygen-level-dependent (BOLD) signal in fMRI.

Creative constraints: Brain activity and network dynamics underlying semantic interference during idea production

Functional neuroimaging research has recently revealed brain network interactions during performance on creative thinking tasks—particularly among regions of the default and executive control networks—but the cognitive mechanisms related to these interactions remain poorly understood. Here we test the hypothesis that the executive control network can interact with the default network to inhibit salient conceptual knowledge (i.e., pre-potent responses) elicited from memory during creative idea production. Participants studied common noun-verb pairs and were given a cued-recall test with corrective feedback to strengthen the paired association in memory. They then completed a verb generation task that presented either a previously studied noun (high-constraint) or an unstudied noun (low-constraint), and were asked to “think creatively” while searching for a novel verb to relate to the presented noun. Latent Semantic Analysis of verbal responses showed decreased semantic distance values in the high-constraint (i.e., interference) condition, which corresponded to increased neural activity within regions of the default (posterior cingulate cortex and bilateral angular gyri), salience (right anterior insula), and executive control (left dorsolateral prefrontal cortex) networks. Independent component analysis of intrinsic functional connectivity networks extended this finding by revealing differential interactions among these large-scale networks across the task conditions. The results suggest that interactions between the default and executive control networks underlie response inhibition during constrained idea production, providing insight into specific neurocognitive mechanisms supporting creative cognition.

Leveraging a Large Learner Corpus for Automatic Suggestion of Collocations for Learners of Japanese as a Second Language

One of the challenges of learning Japanese as a Second Language (JSL) is finding the appropriate word for a particular usage. To address this challenge, we developed a collocational aid designed to suggest more appropriate collocations in Japanese. In particular, we address the problem of generating and ranking noun and verb candidates for correcting potential collocation errors in the learners’ text. Given a noun-verb construction as input, our system generates possible noun or verb correction candidates based on noun and verb corrections extracted from a large Japanese learner corpus. We use this corpus to investigate the learner's tendency to commit collocation errors, and to produce a smaller and more realistic set of candidates. After combining nouns or verbs with the generated candidates to form noun-verb pairs, the system uses the Weighted Dice coefficient as the association measure to filter out inappropriate noun-verb pairs and rank the proper collocations. We report the detailed evaluation and results on learner data. In addition, we show that our system statistically outperforms existing approaches to collocation error correction. Finally, we report a preliminary user study with JSL learners.

The Effect of Input on Children’s Cross-Categorical Use of Polysemous Noun-Verb Pairs

Using an observational task followed by an experimental task with an Intermodal Preferential Looking Paradigm, we examined the effect of input on children’s acquisition of class extension rules by investigating the relationship between the amount of polysemous noun-verb pairs in French-speaking 2-year-olds’ input and both their spontaneous production of these words and their comprehension of novel instances of these words. Study 1 demonstrated that the number of words children used cross-categorically was related to the number of words their mothers used cross-categorically. Children also used object-denoting words cross-categorically more often than nonobject- and action-denoting words. Study 2 demonstrated that only children whose mothers frequently used noun-verb pairs cross-categorically were able to understand the cross-categorical use of the novel object-denoting words in the experimental task. This suggests that semantic and distributional cues associated with object-denoting noun-verb pairs in the input play an important role in children’s acquisition of class extension rules.

Cerebellum engages in automation of verb-generation skill.

Numerous studies have shown cerebellar involvement in item-specific association, a form of explicit learning. However, very few have demonstrated cerebellar participation in automation of non-motor cognitive tasks. Applying fMRI to a repeated verb-generation task, we sought to distinguish cerebellar involvement in learning of item-specific noun-verb association and automation of verb generation skill. The same set of nouns was repeated in six verb-generation blocks so that subjects practiced generating verbs for the nouns. The practice was followed by a novel block with a different set of nouns. The cerebellar vermis (IV/V) and the right cerebellar lobule VI showed decreased activation following practice; activation in the right cerebellar Crus I was significantly lower in the novel challenge than in the initial verb-generation task. Furthermore, activation in this region during well-practiced blocks strongly correlated with improvement of behavioral performance in both the well-practiced and the novel blocks, suggesting its role in the learning of general mental skills not specific to the practiced noun-verb pairs. Therefore, the cerebellum processes both explicit verbal associative learning and automation of cognitive tasks. Different cerebellar regions predominate in this processing: lobule VI during the acquisition of item-specific association, and Crus I during automation of verb-generation skills through practice.