Cited by 70Genomic variations and chromosomal abnormalitiesMemory and Neural MechanismsGenetics and Neurodevelopmental Disorders

16p11.2 deletion mice display cognitive deficits in touchscreen learning and novelty recognition tasks

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Yang, Mu, Lewis, Freeman C., Sarvi, Michael S., Foley, Gillian M., Crawley, Jacqueline N.·2015·Learning & Memory

Abstract

Chromosomal 16p11.2 deletion syndrome frequently presents with intellectual disabilities, speech delays, and autism. Here we investigated the Dolmetsch line of 16p11.2 heterozygous (+/−) mice on a range of cognitive tasks with different neuroanatomical substrates. Robust novel object recognition deficits were replicated in two cohorts of 16p11.2+/− mice, confirming previous findings. A similarly robust deficit in object location memory was discovered in +/−, indicating impaired spatial novelty recognition. Generalizability of novelty recognition deficits in +/− mice extended to preference for social novelty. Robust learning deficits and cognitive inflexibility were detected using Bussey–Saksida touchscreen operant chambers. During acquisition of pairwise visual discrimination, +/− mice required significantly more training trials to reach criterion than wild-type littermates (+/+), and made more errors and correction errors than +/+. In the reversal phase, all +/+ reached criterion, whereas most +/− failed to reach criterion by the 30-d cutoff. Contextual and cued fear conditioning were normal in +/−. These cognitive phenotypes may be relevant to some aspects of cognitive impairments in humans with 16p11.2 deletion, and support the use of 16p11.2+/− mice as a model system for discovering treatments for cognitive impairments in 16p11.2 deletion syndrome.

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Authors
Yang, M., Lewis, F. C., Sarvi, M. S., Foley, G. M., & Crawley, J. N.
Affiliations
University of California Davis Medical Center (US)
Corresponding author
Yang, Mu
Venue
Learning & Memory
Published
2015-11-16
Volume
22
Issue
12
Pages
622-632
ISSN
  • 1072-0502 (ISSN-L)
  • 1549-5485
OpenAlex
W2175711195
Cited by
70
References
67
Citations by year
2026: 3 · 2025: 5 · 2024: 3 · 2023: 5 · 2022: 4 · 2021: 10 · 2020: 7 · 2019: 9 · 2018: 9 · 2017: 11 · 2016: 4
Type
posted content
Language
en
Open access
Licence
cc-by-nc
Locations
  • Learning & Memory (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc)
Funders
  • Simons Foundation, SFARI (204340)
  • National Institute of Mental Health Intramural Research Program
  • University of California Davis MIND Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
16p11.2 deletion syndrome, cognitive impairment, novel object recognition, social novelty preference, visual discrimination learning, reversal learning, cognitive inflexibility, intellectual disability, autism spectrum disorder, fear conditioning
MeSH terms
Animals, Autistic Disorder, Chromosome Deletion, Chromosomes, Human, Pair 16, Cognition Disorders, Conditioning, Psychological, Cues, Discrimination, Psychological, Fear, Female, Heterozygote, Learning, Learning Disabilities, Male, Intellectual Disability, Mice, Transgenic, Psychological Tests, Reversal Learning, Social Perception, Swimming, Visual Perception, Recognition, Psychology, Chromosome Disorders, Spatial Memory

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