Cited by 53Hearing, Cochlea, Tinnitus, GeneticsHearing Loss and RehabilitationNeuroscience and Music Perception

Modification of the acoustic startle response in hearing-impaired C57BL/6J mice: prepulse augmentation and prolongation of prepulse inhibition

Willott, James F., Carlson, Stephanie·1995·Behavioral Neuroscience

Abstract

Modification of acoustic startle amplitude by a 10-ms tone prepulse (S1) was evaluated as a function of the interstimulus interval (ISI) between the onset of S1 and the onset of the startle-evoking stimulus (S2). Subjects were normal-hearing 1-month-old C57BL/6J (C57) mice and CBA/CaJ mice and 5-month-old C57 mice with high-frequency hearing loss. With a 2-ms ISI, 5-month-old C57 mice (but not the normal-hearing mice) exhibited pronounced prepulse augmentation (PPA) of startle: Amplitudes were much larger when S1 was present. Prepulse inhibition (PPI) occurred with ISIs of 10-100 ms in all subject groups. With long ISIs of 200 and 500 ms, however, PPI was strong only in 5-month-old C57 mice and only with S1 frequencies of 8, 12, and 16 kHz. Physiological studies of neural plasticity have shown that frequencies of 8-16 kHz become "over-represented" (more neurons responding) in the central auditory system of C57 mice, suggesting a link with prolonged PPI observed here.

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Crossref · 10.1037/0735-7044.109.3.396

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Authors
Willott, J. F., & Carlson, S.
Affiliations
Northern Illinois University (US)
Venue
Behavioral Neuroscience
Published
1995-06
Volume
109
Issue
3
Pages
396-403
ISSN
  • 0735-7044 (ISSN-L)
  • 1939-0084
OpenAlex
W2008973241
Cited by
53
References
0
Citations by year
2024: 1 · 2022: 1 · 2021: 1 · 2019: 1 · 2018: 2 · 2017: 1 · 2016: 2 · 2013: 1 · 2012: 1
FWCI
1.93
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioral Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (R37 AG007554-7, R37AG007554)
Topics
  • Life Sciences › Neuroscience › Sensory Systems › Hearing, Cochlea, Tinnitus, Genetics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hearing Loss and Rehabilitation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neuroscience and Music Perception
Keywords
acoustic startle response, prepulse inhibition, high-frequency hearing loss, interstimulus interval, tone frequency, neuroplasticity, auditory system, C57BL/6J mice, CBA/CaJ mice, startle amplitude
MeSH terms
Animals, Arousal, Auditory Threshold, Female, Genotype, Male, Mice, Inbred CBA, Mice, Inbred C57BL, Neural Inhibition, Psychoacoustics, Species Specificity, Reflex, Startle, Mice

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