Interestingly, a weakened HES1 action on the Hes1 promoter allows the coexistence of stable patterning and oscillations.
Vincent, O., Roditchev, I. & Marmottant, P. Spontaneous firings of carnivorous aquatic Utricularia traps: temporal patterns and mechanical oscillations.
The existence of repeated patterns and synchronous oscillations are readily apparent (Figure 4a,b).
We observed the same general patterns of eigenshapes and oscillations in vitro and in vivo, suggesting that oscillations are a surprisingly robust and fundamental aspect of growth cone behaviour.
Instead, abnormal firing patterns, such as bursts and oscillations, were recorded in the BG of PD animals and patients (Raz et al. 2000; Brown et al. 2001; Tachibana et al. 2011), and synchronous activation may disable the ability of individual neurons to process and relay motor-related information, resulting in failure of appropriate movements (Bergman et al. 1998; Brown 2007).
We found that Dictyostelium cells in both vegetative and starved states commonly organize their own shape into three ordered patterns, elongation, rotation, and oscillation, in the absence of external stimuli.
We observed that despite apparently random pseudopodia formation, the remodeling of the cell shape was organized into three distinct ordered patterns: elongation, rotation, and oscillation.
Moreover, 3.3 hour measurement of a WT vegetative cell revealed that a single cell can show three types of pattern, a rotation, elongation, and oscillation pattern (Fig. S1).
We experimentally derived a unique one-to-one mapping between a range of selected bioactive chemicals and patterns of oscillations of the slime mould's extracellular electrical potential.
These patterns clearly corresponded to the rotation and oscillation patterns that we observed.
