We next wanted to test whether Perissodus species exhibited quantitative asymmetries in craniofacial shape.
This study investigated the effects of continuous slow infusion of cholecystokinin tetrapeptide (CCK-4), a neuropeptide with panicogenic properties, on functional hemispheric differences, as indexed by quantitative electroencephalographic (EEG) asymmetry and coherence measures.
Moreover, the colour maps (Fig. 3) obtained by the superimposition (best fit registration) of the original and mirror facial images provided a detailed quantitative assessment of asymmetry using all of the available facial points instead of a limited number of facial landmarks.
On the basis of the control distribution of %differences between the 4'-6-diamido-2-phenylindole (DAPI) mean fluorescence intensity (MFI) of sister nuclei in CD-arrested cells (See Figure 2c), for quantitative analysis, chromosomal asymmetry was defined as a %difference in MFI >30%.
However, to recover from this information the sharp quantitative estimate of the asymmetry for (Omega ) does not seem easy.
In the present study, the quantitative analysis of facial asymmetry was performed by measuring the distances between the original and mirror images of a subject.
Ecologists have developed several measures to characterize ecological network dynamics, including the concepts of modularity [13], connectance [14], degree-strength asymmetry [15], quantitative link density [16], and nestedness [17] [19].
A first quantitative corroboration of this asymmetry in the context of a detailed eco-genetic model was provided by Dunlop et al. (2009).
At the time of writing there is still no conclusive explanation for some SCG quantitative changes exclusively assigned to asymmetry (right side) and those assigned to the interaction between asymmetry (right side) and senescence in pacas.
Univariate analyses of dental crown size, including variability (based on coefficients of variation) and asymmetry (based on quantitative measures of fluctuating asymmetry), have tended to conform with expected patterns.
