Effects of transient auditory deprivation during critical periods on the development of auditory temporal processing

Bong Jik Kim, Jungyoon Kim, Il Yong Park, Jae Yun Jung, Myung Whan Suh, Seung ha Oh

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Objectives The central auditory pathway matures through sensory experiences and it is known that sensory experiences during periods called critical periods exert an important influence on brain development. The present study aimed to investigate whether temporary auditory deprivation during critical periods (CPs) could have a detrimental effect on the development of auditory temporal processing. Materials and methods Twelve neonatal rats were randomly assigned to control and study groups; Study group experienced temporary (18–20 days) auditory deprivation during CPs (Early deprivation study group). Outcome measures included changes in auditory brainstem response (ABR), gap prepulse inhibition of the acoustic startle reflex (GPIAS), and gap detection threshold (GDT). To further delineate the specific role of CPs in the outcome measures above, the same paradigm was applied in adult rats (Late deprivation group) and the findings were compared with those of the neonatal rats. Results Soon after the restoration of hearing, early deprivation study animals showed a significantly lower GPIAS at intermediate gap durations and a larger GDT than early deprivation controls, but these differences became insignificant after subsequent auditory inputs. Additionally, the ABR results showed significantly delayed latencies of waves IV, V, and interpeak latencies of wave I-III and wave I-V in study group. Late deprivation group didn't exhibit any deterioration in temporal processing following sensory deprivation. Conclusion Taken together, the present results suggest that transient auditory deprivation during CPs might cause reversible disruptions in the development of temporal processing.

Original languageEnglish
Pages (from-to)66-71
Number of pages6
JournalInternational Journal of Pediatric Otorhinolaryngology
StatePublished - Jan 2018

Bibliographical note

Funding Information:
This work was supported by the Brain Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning ( 2015M3C7A1028373 ).

Publisher Copyright:
© 2017 Elsevier B.V.


  • Critical period
  • Gap detection
  • Otitis media
  • Startle reflex
  • Temporal processing
  • Transient auditory deprivation


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