Measurements of auditory sensitivity in common carp Cyprinus carpio by the auditory brainstem response technique and cardiac conditioning method

Autor:	Tomoyuki Komada, Takahito Kojima, Tomonari Akamatsu, Toru Taniuchi, Hirosuke Ito
Rok vydání:	2005
Předmět:	Cardiac response medicine.medical_specialty business.industry Audiogram Cardiac conditioning Aquatic Science Audiology Common carp Auditory brainstem response otorhinolaryngologic diseases medicine Fish cardiovascular diseases sense organs business Sensitivity (electronics) Auditory thresholds
Zdroj:	Fisheries Science. 71:95-100
ISSN:	1444-2906 0919-9268
Popis:	Recently, the non-invasive auditory brainstem response (ABR) technique has been applied to the determination of hearing sensitivity in fish. The technique has some advantages over, and methodological differences from, the classical techniques. The auditory thresholds of common carp were measured by the ABR technique. The classical method was applied to measure cardiac response by electrocardiogram (ECG) after conditioning with electric shock. The most sensitive frequency obtained by ABR was 505 Hz, and by ECG, 1000 Hz. The shapes of the audiogram obtained by ABR and ECG were similar, though threshold levels in both audiograms differed from each other. Furthermore, audiograms obtained by using behavioral techniques were compared with those taken by the ABR and ECG techniques to assess the validity of the ABR technique for testing fish hearing sensitivity. The measured threshold levels increased in the order of behavioral, ABR, and ECG techniques, in the range below 1000 Hz.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e6898887b7c7b47a2569a86eda0e5a52 https://doi.org/10.1111/j.1444-2906.2005.00935.x Zobrazit plný text záznamu Plný text ve formátu PDF