Gonadal hormones, such as testosterone and estradiol, have been suggested to play a role in the expression of novelty-seeking behaviour during adolescence and the difference in novelty-seeking tendencies between males and females (Doremus-Fitzwater et al., 2010; Ernst et al., 2009; Forbes and Dahl, 2010; Kuhn et al., 2010).
Partial reduction of Hsp90 increases expression of morphological novelty in qualitative traits of Drosophila and Arabidopsis, but the extent to which the Hsp90 chaperone also controls smaller and more likely adaptive changes in natural quantitative traits has been unclear.
Two equi-parsimonious scenarios can be proposed: (i) the early mesenchymal expression of Dlx2 is a novelty acquired in the last common ancestor of bony fish only; (ii) the early mesenchymal expression of Dlx2 is an ancestral gnathostome characteristic, and it has been lost in the chondrichthyan lineage (hypotheses c1 and c2 in Figure 7).
We live in a consumer society premised on the idea of self-expression through novelty.
Moreover, changes in the expression of 5-HT7R may underlie novelty-seeking behaviour in rats that in turn also affects their ability to discriminate objects [ 60, 61].
For every superficial expression of a culture obsessed with novelty, you can point to a work of blazing originality.
Activity of the right cerebral hemisphere has been associated with response to novelty and the expression of intense emotions, such as aggression, escape behavior, and fear (summarised by Rogers) [3].
To clarify the effects of RKT on gene expression of orexigenic factors after exposure to novelty stress, we evaluated this effect on hypothalamic and gastric mRNA expression 3 h after exposure.
The involvement of col in head segmentation in insects and myriapods represents a novelty, since the expression of col is absent from the crustacean, the chelicerate and the onychophoran.
By influencing the expression of novel resource-use phenotypes, maternal effects may play a largely underappreciated role in the origins of novelty.
Nor is this impression of novelty evanescent.
