Sex differences in rapid auditory processing deficits in ectopic BXSB/MpJ mice.
Prior research with rodent models, performed predominantly in males, has demonstrated a significant association between focal neocortical malformations (e.g. ectopias and microgyria) and rate-specific auditory processing deficits. In the current study and consistent with prior findings, we report that ectopic male BXSB/MpJ mice exhibit impairments in detecting a two-tone oddball stimulus at short but not long inter-stimulus interval durations when compared to non-ectopic male littermates. However, ectopic female littermates showed no rapid auditory processing deficit when compared to non-ectopic females on this same task. Current results add growing support to: (1) an association between focal cortical malformations and impaired auditory processing in males; and (2) the existence of sex differences in the behavioral consequences of focal cortical malformations.
Peiffer
Ann M
AM
Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, USA.
Rosen
Glenn D
GD
Fitch
R Holly
RH
D000161:Acoustic Stimulation; D000818:Animals; D001307:Auditory Perception / Q000235:genetics*; D019521:Body Patterning / Q000235:genetics; D002454:Cell Differentiation / Q000235:genetics; D002465:Cell Movement / Q000235:genetics; D002540:Cerebral Cortex / Q000002:abnormalities* / Q000473:pathology / Q000503:physiopathology; D002828:Choristoma / Q000235:genetics* / Q000473:pathology / Q000503:physiopathology; D004195:Disease Models, Animal; D004410:Dyslexia / Q000235:genetics* / Q000378:metabolism / Q000503:physiopathology; D005260:Female; D018507:Gene Expression Regulation, Developmental / Q000235:genetics; D007805:Language Development Disorders / Q000235:genetics* / Q000378:metabolism / Q000503:physiopathology; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D008818:Mice, Neurologic Mutants; D009421:Nervous System Malformations / Q000235:genetics* / Q000378:metabolism / Q000503:physiopathology; D012727:Sex Characteristics