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Volume 39 #1

Contents

  1. MODERN APPROACHES TO COCHLEAR IMPLANTATION IN INNER EAR ANOMALIES: AUDIOLOGICAL ASPECTS
  2. THE ROLE OF THE ENVELOPE IN THE DISCRIMINATION OF RIPPLED SPECTRA BY LISTENERS WITH DIFFERENT AUDITORY SENSITIVITY
  3. INFLUENCE OF ACOUSTIC BACKGROUND ON THE CHOICE OF VISUAL STIMULI BY CHILDREN OF EARLY PRESCHOOL AGE
  4. TEMPORAL CHARACTERISTICS OF SPEECH IN PATIENTS WITH MODERATELY SEVERE CHRONIC POSTLINGUAL SENSORINEURAL HEARING LOSS WITHOUT THE USE OF HEARING AIDS AND WITH HEARING PROSTHETICS
  5. ON THE ROLE OF THE AUDITORY CRITICAL BANDS IN EFFECTS OF STIMULUS-SPECIFIC ADAPTATION IN THE ACTIVITY OF PRIMARY AUDITORY CORTEX NEURONS IN AWAKE MICE
  6. NICOTINAMIDE-STREPTOZOTOCIN-INDUCED TYPE 2 DIABETES MELLITUS LEADS TO IMPAIRED FUNCTION OF THE MAIN OLFACTORY SYSTEM IN MALE WISTAR RATS
  7. THREE-DIMENSIONAL OBJECT DETECTION BASED ON L-SHAPE MODEL IN AUTONOMOUS MOTION SYSTEMS

ON THE ROLE OF THE AUDITORY CRITICAL BANDS IN EFFECTS OF STIMULUS-SPECIFIC ADAPTATION IN THE ACTIVITY OF PRIMARY AUDITORY CORTEX NEURONS IN AWAKE MICE

© 2025 M. A. Egorova, A. G. Akimov, G. D. Khorunzhii

I.M. Sechenov Institute of evolutionary physiology and biochemistry RAS, 194223 St. Petersburg, Torez ave., 44, Russia

Received 17 Nov 2024

The neurophysiological effects of stimulus-specific adaptation in the single neurons activity in the primary fields of the awake house mice auditory cortex were firstly studied. While adaptation of neuronal responses to sound sequences consisting of four identical tones, the time intervals between which were selected so as to be similar to the temporal structure of series of mouse pups wriggling call, adult females were stimulated by a fifth tone signal, the frequency of which differed from the frequency of the first four tone pulses in the series. The presentation of deviant tone led to a complete or partial neuronal responses recovery from adaptation in responses to the fifth component of the sequence, i.e. the response to the fifth tone was stronger than ones to the 2nd – 4th signals. Localization of the frequencies of main tonal sequence components and of the deviant one in two different non-overlapping critical bands of mouse hearing was followed by the most prominent effect of release from stimulus-specific adaptation. Thus, the critical band mechanism is involved in facilitating of the novelty responses of auditory neurons in the midbrain and auditory cortex.

Key words: hearing, primary auditory cortex, awake mice, stimulus-specific auditory adaptation, auditory critical bands

DOI: 10.31857/S0235009225010056  EDN: UUPQZB

Cite: Egorova M. A., Akimov A. G., Khorunzhii G. D. O roli kriticheskikh polos slukha v proyavlenii stimul-spetsificheskoi adaptatsii v impulsnoi aktivnosti neironov pervichnoi slukhovoi kory bodrstvuyushchikh myshei [On the role of the auditory critical bands in effects of stimulus-specific adaptation in the activity of primary auditory cortex neurons in awake mice]. Sensornye sistemy [Sensory systems]. 2025. V. 39(1). P. 48–54 (in Russian). doi: 10.31857/S0235009225010056

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