Recall memory in children with Down syndrome and typically developing peers matched on developmental age

Milojevich, Helen M.; Lukowski, Angela F.

doi:10.1111/jir.12242

Cited by 21 publications

(23 citation statements)

References 71 publications

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“…For example, some behaviors that are considered problematic in adolescence and adulthood (e.g., difficulties with behavior regulation) may be considered more age-appropriate in early childhood. Similarly, although the cognitive phenotype associated with DS is quite pronounced relative to chronological-age matched peers in adolescence and adulthood, specific cognitive delays are more subtle and difficult to detect during infancy, and findings may vary depending on the component of cognition assessed (Milojevich & Lukowski, 2016; Roberts & Richmond, 2015). In addition, the profile of relative strengths and weaknesses that defines the DS phenotype emerges with age as the result of the complex interplay between the genetic condition, characteristics of the individual, and his or her interactions with the environment.…”

Section: Resultsmentioning

confidence: 99%

Outcome Measures for Clinical Trials in Down Syndrome

Esbensen

Hooper

Fidler

et al. 2017

American Journal on Intellectual and Developmental Disabilities

122

176

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Increasingly individuals with intellectual and developmental disabilities, including Down syndrome, are being targeted for clinical trials. However, a challenge exists in effectively evaluating the outcomes of these new pharmacological interventions. Few empirically evaluated, psychometrically sound outcome measures appropriate for use in clinical trials with individuals with Down syndrome have been identified. To address this challenge, the NIH assembled leading clinicians and scientists to review existing measures and identify those that currently are appropriate for trials; those that may be appropriate after expansion of age range addition of easier items, and/or downward extension of psychometric norms; and areas where new measures need to be developed. This paper focuses on measures in the areas of cognition and behavior.

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Section: Resultsmentioning

confidence: 99%

Outcome Measures for Clinical Trials in Down Syndrome

Esbensen

Hooper

Fidler

et al. 2017

American Journal on Intellectual and Developmental Disabilities

122

176

View full text Add to dashboard Cite

show abstract

“…41 Similar impairments in memory for temporal order information have been obtained when comparing recall memory in children with Down syndrome relative to typically developing controls matched on developmental age. 66 The results obtained from studies of children who have experienced early adversity may have implications for education and intervention programs. For instance, recent work indicates that participation in social skills therapy was associated with increased encoding and 1 month delayed recall of target actions for children with Down syndrome relative to children who had not participated in this intervention.…”

Section: 63mentioning

confidence: 99%

Examining Recall Memory in Infancy and Early Childhood Using the Elicited Imitation Paradigm

Lukowski

Milojevich

2016

JoVE

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The ability to recall the past allows us to report on details of previous experiences, from the everyday to the significant. Because recall memory is commonly assessed using verbal report paradigms in adults, studying the development of this ability in preverbal infants and children proved challenging. Over the past 30 years, researchers have developed a non-verbal means of assessing recall memory known as the elicited or deferred imitation paradigm. In one variant of the procedure, participants are presented with novel three-dimensional stimuli for a brief baseline period before a researcher demonstrates a series of actions that culminate in an end- or goal-state. The participant is allowed to imitate the demonstrated actions immediately, after a delay, or both. Recall performance is then compared to baseline or to performance on novel control sequences presented at the same session; memory can be assessed for the individual target actions and the order in which they were completed. This procedure is an accepted analogue to the verbal report techniques used with adults, and it has served to establish a solid foundation of the nature of recall memory in infancy and early childhood. In addition, the elicited or deferred imitation procedure has been modified and adapted to answer questions relevant to other aspects of cognitive functioning. The broad utility and application of imitation paradigms is discussed, along with limitations of the approach and directions for future research.

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“…Jarrold et al (2007) found that verbal information was retained better than spatial information across an estimated 8-minute delay, findings that are consistent with word-learning studies showing that children with DS can effectively comprehend and produce one single novel word across an hour delay (Chapman, Bird, & Schwartz, 1990). Other studies suggested that nonverbal memory retention was not impaired at 24 hours (Roberts & Richmond, 2015), but follow-up studies suggested that young children with DS have deficits in temporal order memory for deferred imitation sequences across a delay of 1-month (Milojevich & Lukowski, 2016). Given the importance of examining long-term word retention in individuals with DS and the literature suggesting that word-learning may be linked to the hippocampus under certain encoding conditions, we examined the ability of individuals with and without DS to retain words across a 1-week delay.…”

Section: Introductionmentioning

confidence: 99%

Small Sets of Novel Words Are Fully Retained After 1-Week in Typically Developing Children and Down Syndrome: A Fast Mapping Study

Sakhon

Edwards

Luongo

et al. 2018

J Int Neuropsychol Soc

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Objective Down syndrome (DS) is a population with known hippocampal impairment, with studies showing that individuals with DS display difficulties in spatial navigation and remembering arbitrary bindings. Recent research has also demonstrated the importance of the hippocampus for novel word learning. Based on these data, we aimed to determine whether individuals with DS show deficits in learning new labels and if they may benefit from encoding conditions thought to be less reliant on hippocampal function (i.e., through fast mapping). Method In the current study, we examine immediate, 5-minute, and 1-week delayed word-learning across two learning conditions (e.g., explicit encoding vs. fast mapping). These conditions were examined across group (twenty-six 3–5 year old typically developing children and twenty-six 11–28 year old individuals with DS with comparable verbal and nonverbal scores on the Kaufman Brief Intelligence Test – second edition) and in reference to sleep quality. Results Both individuals with and without DS showed retention after a 1-week delay, and the current study found no benefit of the fast mapping condition in either group contrary to our expectations. Eye tracking data showed that preferential eye movements to target words were not present immediately but emerged after 1-week in both groups. Further, sleep measures collected via actigraphy did not relate to retention in either group. Conclusion This study presents novel data on long-term knowledge retention in reference to sleep patterns in DS and adds to a body of knowledge helping us to understand the processes of word learning in typical and atypically developing populations.

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Recall memory in children with Down syndrome and typically developing peers matched on developmental age

Abstract: These findings suggest that children with DS may have difficulty with mnemonic processes associated with consolidation/storage and/or retrieval processes relative to TD children.

Cited by 21 publications

References 71 publications

Outcome Measures for Clinical Trials in Down Syndrome

Outcome Measures for Clinical Trials in Down Syndrome

Examining Recall Memory in Infancy and Early Childhood Using the Elicited Imitation Paradigm

Small Sets of Novel Words Are Fully Retained After 1-Week in Typically Developing Children and Down Syndrome: A Fast Mapping Study

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