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Keywords: Amplitude modulationClose
Rosaria Grasso, Rosalia Pellitteri, Santi A. Caravella, Francesco Musumeci, Giuseppina Raciti, Agata Scordino, Giovanni Sposito, Antonio Triglia, Agata Campisi
J Exp Biol (2020) 223 (5): jeb217190.
Published: 28 February 2020
... effects induced on OECs through radiofrequency electromagnetic fields changing the envelope of the electromagnetic wave. Primary OEC cultures were exposed to continuous or amplitude-modulated 900 MHz electromagnetic fields, in the far-field condition and at different exposure times (10, 15, 20 min...
J Exp Biol (2015) 218 (18): 2881–2891.
Published: 1 September 2015
... fish size. Sounds differed among species in terms of waveform shape and their rate of amplitude modulation. In addition, multiple distinguishable sound types were observed from each species: three sound types from A. cataphractus and P. hancockii , and two sound types from A. pectinifrons . Although...
Includes: Supplementary data
J Exp Biol (2014) 217 (13): 2377–2389.
Published: 1 July 2014
... repertoire composed of three basic sound types that varied widely in duration, harmonic structure and degree of amplitude modulation (AM): ‘hum’, ‘grunt’ and ‘growl’. Hum duration varied nearly 1000-fold, lasting for minutes at a time, with stable harmonic stacks and little envelope modulation throughout...
J Exp Biol (2004) 207 (20): 3523–3529.
Published: 15 September 2004
... recognition in both species was tested during phonotaxis on a walking compensator. Female N. robustus were attracted to calls without amplitude modulation. Amplitude-modulated signals were equally attractive, as long as the silent intervals were short enough. The maximally tolerated interval duration varied...
J Exp Biol (2003) 206 (11): 1833–1843.
Published: 1 June 2003
... but much less so in non-songbirds, the songs of which are often regarded as relatively simple. We examined mechanisms of frequency and amplitude modulation of phonation in ring doves Streptopelia risoria ,which are non-songbirds. Spontaneous coo vocalizations were recorded together with concurrent pressure...
J Exp Biol (1999) 202 (10): 1377–1386.
Published: 15 May 1999
... experiments, we found that the decision to raise or lower the pacemaker frequency reliably above or below its resting level depends on the latter process, and that frequency deceleration responses to amplitude modulation appear to be sufficient to explain previous experimental results on which the former...