Figure 4 - uploaded by Étienne Serbe-Kamp
Content may be subject to copyright.
Burst analysis of recording sessions across three species. a) Burst of extensor spikes in the Mantis Shrimp. Burst duration is time difference between first and last spikes. To show temporal change in spiking, we calculate the number of spikes in the first vs second half of each burst, in this example 9 and 17 respectively. b) Characteristic EMG bursts from each organism. Individual spike times are highlighted by stars. c) Waveform summary of spikes for each organism.

Burst analysis of recording sessions across three species. a) Burst of extensor spikes in the Mantis Shrimp. Burst duration is time difference between first and last spikes. To show temporal change in spiking, we calculate the number of spikes in the first vs second half of each burst, in this example 9 and 17 respectively. b) Characteristic EMG bursts from each organism. Individual spike times are highlighted by stars. c) Waveform summary of spikes for each organism.

Source publication
Technical Report
Full-text available
Mantis shrimp are aggressive, burrowing crustaceans that hunt using one the fastest movements in the natural world. These stomatopods can crack the calcified shells of prey or spear down unsuspecting fish with lighting speed. Their strike makes use of power-amplification mechanisms to move their limbs much faster than is possible by muscles alone....

Contexts in source publication

Context 1
... firing rate of spikes within the EMG traces changed over the course of each EMG burst. Figure 4 compares burst lengths (time between first spike and last spike) and spike counts within the first and last half of the burst across 3 different animals (Figure 4a). Power amplifying animals such as mantis shrimp and crickets had shorter average burst durations than cockroaches. ...
Context 2
... firing rate of spikes within the EMG traces changed over the course of each EMG burst. Figure 4 compares burst lengths (time between first spike and last spike) and spike counts within the first and last half of the burst across 3 different animals (Figure 4a). Power amplifying animals such as mantis shrimp and crickets had shorter average burst durations than cockroaches. ...
Context 3
... post-hoc test showed that though there was a significant difference between mantis shrimp and cockroaches, there was no significant difference between cockroaches and crickets, and there was a significant difference between mantis shrimp and crickets (Kruskal-Wallis test: χ2(2)=16.85, p=0.0002, (Figure 4b). The variance in data between mantis shrimp and cockroaches differed across organisms as well (Levene's test for equal variance: F(2,43)=9.72, ...
Context 4
... salient feature of power-amplifying EMG bursts in our data is the tendency to increase in firing rate from the beginning to the end of the recording (Figure 4c). This increasing trend held across 87% of all recordings of poweramplifying animals, and exhibits a stark difference from cockroaches, in which only 25% of the recordings have a net increase in spikes between the beginning and end of the burst. ...

Similar publications

Article
Full-text available
Mantis shrimp are aggressive, burrowing crustaceans that hunt using one the fastest movements in the natural world. These stomatopods can crack the calcified shells of prey or spear down unsuspecting fish with lighting speed. Their strike makes use of power-amplification mechanisms to move their limbs much faster than is possible by muscles alone....