Implicit Learning Effect Research Articles

Comparison of Effects of Implicit versus Explicit Learning of a Novel Skill in Young Gymnastic Athletes.

The purpose of this study was to compare the effects of explicit learning with implicit learning using a dual-task paradigm on learning a novel skill and whether the performance was maintained over an extended period. Forty-four young children from a local gymnastics club (n = 44, boys n = 10, girls n = 34, age: 10 ± 2.9 years) completed four 30 min front-flip practice sessions over four weeks between pre- and post-test, followed by two retention tests three and six months after the post-test, in which no front-flip practice occurred. Comparable improvements were found beyond baseline performance for both learning conditions over the six-month hiatus. While both groups increased performance at the post-test, neither explicit nor implicit learning groups were able to maintain the achieved performance level into six months of retention. In particular, the explicit group showed a more marked decrease than the implicit group after three months, which was probably caused by the decay of their reliance on the retrieval of declarative knowledge from working memory. The current findings highlight the importance of conducting retention tests over an extended period to monitor performance development after the acquisition of a novel task by different learning methods, as they can differ over time.

Implicit learning provides advantage over explicit learning for gait-cognitive dual-task interference

Dual-task performance holds significant relevance in real-world scenarios. Implicit learning is a possible approach for improving dual-task performance. Analogy learning, utilizing a single metaphor to convey essential information about motor skills, has emerged as a practical method for fostering implicit learning. However, evidence supporting the effect of implicit learning on gait-cognitive dual-task performance is insufficient. This exploratory study aimed to examine the effects of implicit and explicit learning on dual-task performance in both gait and cognitive tasks. Tandem gait was employed on a treadmill to assess motor function, whereas serial seven subtraction tasks were used to gauge cognitive performance. Thirty healthy community-dwelling older individuals were randomly assigned to implicit or explicit learning groups. Each group learned the tandem gait task according to their individual learning styles. The implicit learning group showed a significant improvement in gait performance under the dual-task condition compared with the explicit learning group. Furthermore, the implicit learning group exhibited improved dual-task interference for both tasks. Our findings suggest that implicit learning may offer greater advantages than explicit learning in acquiring autonomous motor skills. Future research is needed to uncover the mechanisms underlying implicit learning and to harness its potential for gait-cognitive dual-task performance in clinical settings.

Effect of implicit and explicit learning on the dart throwing task in the morningness-eveningness people

The interaction of constraints causes learning. It was examined how explicit and implicit learning affected the dart-throwing task in morningness-eveningness people to test this claim. 120 morning-type individuals (AgeM ± SD = 23.38 ± 2.58) were chosen using the MESSi questionnaire. Then, randomly divided into four 30-person groups: explicit morning practice, implicit morning practice, explicit evening practice, and implicit evening practice. Each group received 10 training sessions (3 sets of 10 attempts). Mixed ANOVA (4x4) demonstrated significant main effects of different tests, group, and group test interaction. Additionally, Tukey's test demonstrated that explicit training groups outperformed implicit training groups in both immediate and delayed retention tests. The retention test with a two-week delay and transfer test outperformed explicit training groups. So, it can be said to some extent that implicit practice outperforms explicit. Learning will last longer if this practice is based on individual characteristics like circadian rhythm.

Implicit Versus Explicit Learning a Novel Skill for High School Students

The aim of the study was to compare the effects of implicit learning using dual task-paradigm, with explicit learning on learning a novel skill, and if the performance is maintained over a prolonged period of time. Twenty-six high school adolescents (n = 26, boys n = 15, girls n = 11, age: 16 ± 0.66 years) performed a four-week front-flip learning program, where participants underwent two hours front flip practice in total between the pre- and post-test session followed by two tests; three and six months after the post-test, in which the front-flip was not practiced. Performance was evaluated by two independent gymnastics judges. Both groups increased performance at the post test, with significantly higher scores in the explicit group compared with the implicit group. Probably benefiting from error correction to select positive action outcomes and avoid negative ones consciously. However, the explicit group was also the only group that significantly decreased performance again at first retention test, suggesting that their reliance on the retrieval of declarative knowledge from working memory was subject to decay. While it seems that performance learned via implicit learning may deteriorate more slowly, but also continuously throughout six months suggesting that the directly accumulated procedural knowledge may need for proper reinforcement and practice.

Language Analytic Ability, Print Exposure, Memory and Comprehension of Complex Syntax by Adult Native Speakers.

Nativist theories of language development assume that all native speakers of a particular language ultimately converge on (more or less) the same grammar, and argue that this is only possible because they are born with a genetic blueprint for language. However, a number of recent studies have found that there are, in fact, considerable individual differences in adult native speakers' grammatical attainment. In this study, we examine some possible reasons for these differences. We examine both learner internal cognitive factors (implicit and explicit memory for sequences, non-verbal working memory, and language analytic ability) as well as an experiential factor (print exposure). In contrast to many earlier studies which focused on the temporal aspects of language processing, we are interested in the extent to which individuals are able to use grammatical cues to extract meaning from complex sentences. To minimize the effect of performance factors, sentences remained on screen while participants responded to comprehension questions (thus easing working memory load) and participants were given as much time as they needed to respond. Our findings revealed large effects of language analytic ability and print exposure, and a much smaller effect of implicit learning. While the effect of implicit learning fits in well with current theories of language acquisition and processing, the first two findings do not. The strong relationship between print exposure and comprehension suggests that the ability to process complex syntax may depend on a particular type of language experience which is not available to all speakers. Finally, the effect of language analytic ability challenges the wide-held conviction that the ability to identify and explicitly reason about linguistic patterns is only relevant in adult second language learning.

Reliable evidence for implicit attentional responses to aversive conditioned stimuli.

Evidence for implicit aversive learning effects has been criticized for its lack of experimental rigor and statistical reliability. Here we examine whether attentional emotional responses to aversive conditioned stimuli can occur in the absence of stimulus-outcome contingency awareness, and use a novel Bayesian tool to reliably perform a post hoc categorization of awareness. Across two experiments (n = 40 and 69) participants completed an aversive conditioning task. A novel Bayesian awareness categorization tool was applied to sensitively measure contingency awareness. Finally, attentional and subjective responses toward conditioned stimuli were measured. For participants unaware of contingencies, conditioned stimuli generated attentional avoidance, but only aware participants showed subjective learning effects. For both experiments, awareness scores for unaware participants did not regress above chance level on a subsequent awareness check, revealing a reliable determination of unawareness states. These findings provide evidence for the existence of aversive learning in the absence of contingency awareness, as demonstrated via conditioned attentional responses, and build an analytical framework that can be extrapolated to other implicit paradigms. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Sound category habituation requires task-relevant attention.

Processing the wealth of sensory information from the surrounding environment is a vital human function with the potential to develop learning, advance social interactions, and promote safety and well-being. To elucidate underlying processes governing these activities we measured neurophysiological responses to patterned stimulus sequences during a sound categorization task to evaluate attention effects on implicit learning, sound categorization, and speech perception. Using a unique experimental design, we uncoupled conceptual categorical effects from stimulus-specific effects by presenting categorical stimulus tokens that did not physically repeat. We found effects of implicit learning, categorical habituation, and a speech perception bias when the sounds were attended, and the listeners performed a categorization task (task-relevant). In contrast, there was no evidence of a speech perception bias, implicit learning of the structured sound sequence, or repetition suppression to repeated within-category sounds (no categorical habituation) when participants passively listened to the sounds and watched a silent closed-captioned video (task-irrelevant). No indication of category perception was demonstrated in the scalp-recorded brain components when participants were watching a movie and had no task with the sounds. These results demonstrate that attention is required to maintain category identification and expectations induced by a structured sequence when the conceptual information must be extracted from stimuli that are acoustically distinct. Taken together, these striking attention effects support the theoretical view that top-down control is required to initiate expectations for higher level cognitive processing.

Использование субъективных шкал самоотчета для выявления механизмов, лежащих в основе инсайтных решений анаграмм

The research attempted to evaluate the informativeness of subjective rating scales in order to reveal the processes underlying insightful solving of anagrams. Subjects divided into two groups solved anagrams evaluating their own solutions using rating scales of subjective characteristics taken from similar insight study (Danek et al., 2014): solution happiness, solution surprise, solution suddenness, solution certainty, and experience of an impasse. The subjects in the first group (the “Insight” group) solved regular anagrams. The second group (the “Implicit” group) solved anagrams based on a single pattern, which led to an implicit learning effect. It was expected that the values of the subjective rating scales would make it possible to separate insightful solutions of anagrams based on the realization of implicit knowledge from ordinary insightful solutions. The obtained results confirmed the validity of the assumption. The predictors of belonging to different groups were the scales of solution happiness, solution certainty and experience of an impasse. The study has demonstrated that it is possible to use subjective rating scales to separate insightful anagram solutions on the basis of processes that caused them. This indicates that such a subjective reporting technique is an informative method. The results of this study provide new possibilities for improving the self-reporting procedure in insight research.

Can repeated intranasal oxytocin administration affect reduced neural sensitivity towards expressive faces in autism? A randomized controlled trial.

Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by difficulties in social communication and interaction. Crucial for efficient social interaction is the ability to quickly and accurately extract information from a person's face. Frequency-tagging electroencephalography (EEG) is a novel tool to quantify face-processing sensitivity in a robust and implicit manner. In terms of intervention approaches, intranasal administration of oxytocin (OT) is increasingly considered as a potential pharmacological approach for improving socio-communicative difficulties in ASD, through enhancing social salience and/or reducing (social) stress and anxiety. In this randomized, double-blind, placebo-controlled, mechanistic pharmaco-neuroimaging clinical trial, we implemented frequency-tagging EEG to conduct an exploratory investigation into the impact of repeated OT administration (4 weeks, 12 IU, twice daily) on neural sensitivity towards happy and fearful facial expressions in children with ASD (8-12 years old; OT: n = 29; placebo: n = 32). Neural effects were assessed at baseline, post-nasal spray (24 hr after the last nasal spray) and at a follow-up session, 4 weeks after the OT administration period. At baseline, neural assessments of children with ASD were compared with those of an age- and gender-matched cohort of neurotypical (NT) children (n = 39). Children with ASD demonstrated reduced neural sensitivity towards expressive faces, as compared to NT children. Upon nasal spray administration, children with ASD displayed a significant increase in neural sensitivity at the post- and follow-up sessions, but only in the placebo group, likely reflecting an implicit learning effect. Strikingly, in the OT group, neural sensitivity remained unaffected from the baseline to the post-session, likely reflecting a dampening of an otherwise typically occurring implicit learning effect. First, we validated the robustness of the frequency-tagging EEG approach to assess reduced neural sensitivity towards expressive faces in children with ASD. Furthermore, in contrast to social salience effects observed after single-dose administrations, repeated OT administration dampened typically occurring learning effects in neural sensitivity. In line with OT's social anxiolytic account, these observations possibly reflect a predominant (social) stress regulatory effect towards emotionally evocative faces after repeated OT administration.

Individual differences in working memory capacity and conscious processing do not explain explicit and implicit learning outcomes in physical education

This study examined the effects of explicit versus implicit learning methods on motor learning and self-efficacy of 11-to 14-year old students (n = 81) practicing the basketball layup during physical education. The main aim was to test the effects of students' verbal working memory capacity (WMC) and propensity for conscious motor processing (CMP) on explicit and implicit learning outcomes. The students practiced basketball layups for three weeks (one session/week) during regular PE classes under practice conditions that either promoted explicit or implicit learning. Verbal WMC and CMP propensity were measured separately. At the posttest, students had significantly improved their layup performance and technique, and self-efficacy, but no differences were noted between the intervention groups (explicit vs. implicit). Students' verbal WMC and CMP propensity did not differentially predict the learning outcomes for the explicit or implicit learning groups. Therefore, in this PE setting, both explicit and implicit learning methods seemed to similarly improve movement skill. Further study is needed to examine under which conditions individual constraints such as verbal WMC and propensity for conscious processing influence the effects of explicit and implicit learning.

The effect of implicit learning on motor performance under psychological pressure: A systematic review and meta-analysis.

The effect of implicit learning on motor performance under psychological pressure: A systematic review and meta-analysis.

Are People Able to Disentangle Perceptual and Conceptual Fluency? Evidence from Artificial Grammar Learning Experiment

The heuristic of information processing fluency plays an important role in making judgments. Some sources of processing fluency can be relevant or irrelevant to the content of a judgment. In this study, we aim to check whether individuals can distinguish different sources of fluency or fluency has a general effect on judgments. We used an artificial grammar learning paradigm (AGL) and tested the effects of different fluency sources (grammaticality and perceptual noise) on the judgment of grammaticality or of subjective ease of reading. It was found that both grammaticality and perceptual noise affected grammaticality judgements: the grammatical and the less noisy strings were evaluated more often as grammatical. However, only the perceptual noise affected judgments of subjective ease of reading. The results obtained provide evidence that fluency may contribute to the effects of implicit learning. It is possible that the processing fluency heuristic is the additional factor of judgement in the lack of explicit knowledge. Perhaps, perceptual noise provided almost complete explicit information for judgment of ease of reading; hence there was no need for additional heuristics. Another possible explanation is that perceptual fluency sources affect the early stages of information processing in a mandatory manner, unlike the conceptual ones. Overall, results are better explained by the non-specificity fluency hypothesis supporting the impossibility to distinguish between different fluency sources.

Implicit learning in children with Childhood Apraxia of Speech

BackgroundChildhood Apraxia of Speech is a severe and persistent clinical subtype of Speech Sound Disorder. Given the difficulties in the acquisition, programming and control of the movements underlying speech and the slowdown in a wide range of non-linguistic skills, the difficulty in implicit learning of sequential information could play a role in the disorder, contributing to understand its etiopathological mechanisms and behavioral manifestations. AimsThe present study was aimed at investigating implicit learning in children with Childhood Apraxia of Speech. Methods and proceduresTwenty-five children with Childhood Apraxia of Speech, aged between 4 and 12 years, were matched for IQ and age to a control group of 25 typically developing children. Implicit learning of participants was assessed by Serial Reaction Time Task. Outcome and resultsChildren with Childhood Apraxia of Speech did not show implicit learning, as documented by the absence of differences between reaction times in the sequenced block and the random block, usually considered as a measure of implicit learning effect. Conclusion and implicationsOur results underline an implicit learning deficit in children with Childhood Apraxia of Speech, supporting the concept of a disorder not only confined to the speech domain, but also involving non-linguistic skills, in a composite and complex picture.

Supplemental Material for The Effect of Implicit Learning on Motor Performance Under Psychological Pressure: A Systematic Review and Meta-Analysis

Supplemental Material for The Effect of Implicit Learning on Motor Performance Under Psychological Pressure: A Systematic Review and Meta-Analysis

Task-separation in dual-tasking: How action effects support the separation of the task streams

Dual-task costs might reflect a direct consequence of confusions on the task-set level as both tasks are integrated into a single task-set, instead of two separate task-sets. In order to prevent this integration-driven interference, the two task streams have to be separated. Under three experimental conditions we investigated whether in a dual-task setting such separated task processing can be elicited by providing separated action effects for both tasks. Building on the finding that implicit sequence learning is hampered under dual-tasking conditions, we used it as an indicator for successfully separated task processing. To this end, we compared the implicit sequence learning effect under a single-task condition (baseline condition) to that under a dual-task condition either with separated action effects (action-effect condition) or with conjoined error feedback at the end of each trial (feedback condition): Learning should be unaffected under the former and reduced under the latter experimental condition. In all three conditions, the participants performed a visual-manual and an auditory-manual discrimination task which were always presented concurrently. The results show that, compared to the single-task condition, under dual-task conditions implicit sequence learning is hampered when only a conjoined error feedback is given, but is largely unaffected by dual-tasking when separated action effects are presented. Overall this suggests that whenever two tasks in a dual-task situation appear concurrently, they seem to get integrated into a single task-set by default. Yet, manipulations like the presentation of separated action effects could help to elicit a separated task processing, thus strengthening the representation as two separate task-sets.

The acquisition of pragmatic markers in the foreign language classroom: An experimental study on the effects of implicit and explicit learning

This study discusses the results of an experimental study on the usage of pragmatic markers (PMs) by adolescent German-speaking L2 learners of English in the foreign language classroom. The experiment measured the success of PM usage skills under explicit and implicit learning conditions based on input flood, compared to a control group that received no training on the use of PMs. Competence in using PMs was measured with communicative tasks in a pretest (immediately prior to the experiment) and a posttest (one day after the training). The results, which derive from spoken conversational data collected from 18 advanced learners of English in a high school context, show that short-term effects as regards usage frequency and diversity of PMs could be reached only for the learners who underwent explicit teaching, who showed a significant increase in the frequency of use of PMs in conversational L2 speech and expanded the range of PMs beyond the set of PMs that had been used before the training. The results raise intriguing questions regarding the learnability of conversational routines in L2 acquisition.

On the Relationship between Intrinsic Saliency and Implicit Learning of Apologetic Strategies: The Case of Taiwanese EFL Learners.

The current study explored the relationship between the intrinsic saliency of apologetic strategies and the effects of implicit learning. Seventeen Taiwanese English as a Foreign Language (EFL) learners with intermediate proficiency participated in the experiment with a pretest on apology in the first week, a noticing session in the second week and a posttest in the third week. The results from the noticing session indicated that providing reasons (e.g., taking on responsibility/explanation or account) and offer of repair were more salient in input to those learners. Additionally, the use of the apologetic strategies taking on responsibility and offer of repair increased in the posttest. Taken together, the results indicated that higher degrees of saliency in input led to better implicit learning outcomes. The interplay between input saliency and explicit/implicit learning as well as the pedagogical implications were discussed.

Implicit Learning of Motor Behavior Through Observation in Middle-School Students

There is a disagreement in the neuropsychological literature regarding the nature of observational learning, strictly without a motor component. While some studies claim explicit influences are needed in order for learning to occur, others argue that they are not. The current student aims at understanding this gap, in particular emphasizing the observation aspect, since there is a limited number of research on this component. An experiment was conducted to measure both the short- and long-term of this effect using a neutral parameter procedure among two groups and a control. It was found that there was a significant effect of implicit learning. These findings are analyzed in a behavioral aspect and taken into consideration for limitations, implications and future research.

Spelling in developmental dyslexia in Chinese: Evidence of deficits in statistical learning and over-reliance on phonology

ABSTRACT This study employed a multi-dimensional (i.e., orthographic, phonological, and semantic) and bi-level (i.e., character and radical) approach to analyze the character writing of 120 Hong Kong Chinese children with developmental dyslexia in Grades 2–5 and 120 typically developing age-matched controls. Relative to their typically developing peers, children with dyslexia were less sensitive to the positional and functional consistencies of sublexical radicals and exhibited prolonged use of phonology at the character level as grade-level advanced. Furthermore, the children with dyslexia relatively relied more on phonology at the radical level than younger, reading level-matched children. These results indicate the effects of implicit statistical learning on the development of Chinese character writing skills and suggest that the prolonged use and overreliance on phonology in character writing by Chinese children with dyslexia may reflect their difficulties in implicit statistical learning.

The Effects of Implicit Learning on Japanese EFL Junior College Students’ Writing

The Effects of Implicit Learning on Japanese EFL Junior College Students’ Writing