.... As for electrical fish that display clear spectral jamming avoidance responses (JAR), bats have been reported to mitigate the effects of jamming by shifting the spectral contents of their calls, thereby reducing acoustic interference to improve echo-to-noise ratio (ENR). Here, we tested the hypothesis...

... revisited: evolution of a vertebrate communication and orientation organ . In Electroreception (ed. T. H. Bullock , W. Heiligenberg ), pp. 13 – 70 . New York , John Wiley and Sons . Bates , M. E. , Stamper , S. A. and Simmons , J. A. (2008). Jamming avoidance response...

... Bioacoustics Signal interference Spatial orientation Jamming avoidance response For orientation, echolocating bats emit biosonar calls and listen to echoes arising from reflections off surrounding objects (Kössl et al., 2014 ; Moss and Surlykke, 2010 ; Simmons, 2012). Spectro-temporal parameters...

...:   Miniopterus fuliginosus adapt their echolocation sounds according to the spectrum pattern of the jamming sounds. Bats Jamming avoidance response Terminal frequency The frequency-modulated (FM) pattern of echolocation pulses emitted by bats is generally similar among conspecific individuals...

... as whether such interference elicits a jamming avoidance response. We compare the capture rates of tethered moths and the echolocation parameters of big brown bats (Eptesicus fuscus) challenged with the playback of the jamming signal normally produced by Brazilian free-tailed bats and playback...

... organ EOD electric organ discharge FM frequency modulation FT Fourier transform JAR jamming avoidance response nE nucleus electrosensorius Pn pacemaker nucleus PPn pre-pacemaker nucleus PSTH peri-stimulus time histogram SER social envelope response...

...Alberto Capurro; Khashayar Pakdaman SUMMARY Jamming avoidance responses (JARs) are exhibited by pairs of pulse type electric fish that discharge with similar frequencies whenever their individual pulses are about to coincide: responses consist of the transient shortenings in inter-discharge...

... feedback loop immediately restored discrimination performance on an on/off basis, and a strong jamming avoidance response (JAR; a frequency shift away from the stimulus) accompanied every behavioural decision (to go for a food reward). The strong habituation of the JAR that occurs in response to stimuli...

...Yumi Takizawa; Gary J. Rose; Masashi Kawasaki ABSTRACT The algorithm for the control of the jamming avoidance response (JAR) of Eigenmannia has been the subject of debate for over two decades. Two competing theories have been proposed to explain how fish determine the correct direction to shift...

... for the spontaneous jamming avoidance response (JAR; a change in EOD frequency evoked by a stimulus of sufficiently similar frequency), in this case using unclamped stimuli. Over the wide frequency range investigated (0.3–3.01 times EOD frequency), the lowest stimulus-intensity thresholds of 0.6 µ V cm −1 (peak...

...Bernd Kramer ABSTRACT Eigenmannia’ s, jamming avoidance response (JAR) is a frequency change of its electric organ discharge (EOD) in response to an electric stimulus of similar frequency (small ΔF; ΔF = F Fish – F Stim). It is assumed that the response to an unclamped stimulus, ΔR = F Response – F...

... of various waveforms but equal peak-to-peak amplitudes at frequencies close to the fish’s frequency elicited the Jamming Avoidance Response (JAR) which is an EOD frequency change increasing the frequency difference (Watanabe & Takeda, 1963). The strength of JARs to distorted square wave and sawtooth...