Tag Archive: pheromonal

The importance of olfactory receptors

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Smell Turns Up in Unexpected Places By ALEX STONEOCT. 13, 2014 Excerpt: “I’ve been arguing for the importance of these receptors for years,” said Dr. Hatt, who calls himself an ambassador of smell, and whose favorite aromas are basil, thyme…
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Forces of “Nature” limit dissemination of information

human-evolution

Force of nature gave life its asymmetry Excerpt: “In 2011, Meierhenrich and colleages showed4 that such light could transfer its handedness to amino acids. But even demonstrating how a common physical phenomenon would have favoured left-handed amino acids over right-handed…
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Insect homology and diversity attributed to mutations

Genetic code

Ancient homology underlies adaptive mimetic diversity across butterflies Excerpt: “Surprisingly, our results suggest that modulation of this conserved developmental gene has occurred in tandem between these two deeply divergent butterfly lineages, implying an unexpected and remarkable level of predictability in…
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Classical (Pavlovian) conditioning vs operant conditioning ("training")

The link to appetite regulation is from olfactory (and probably pheromonal) stimuli directly to the diet-responsive (and probably pheromone-responsive) hypothalamic neurogenic niche that controls nutrient chemical acquisition via its control of the dopaminergic and serotoninergic neuronal systems

A neuroscientific perspective on neurobiological differences in everyone

Classical conditioning links sensory input directly to changes in hormone-driven behavior. Operant conditioning links the rewards associated with the behavior to behaviors that are repeated, or not. We can think about which behaviors we don’t want to exhibit or don’t want to repeat.

More than speculation: adaptive evolution in species from microbes to man

Genetic code

I’ve dismissed evolutionary theory that involves random mutations, and used the epigenetic effects of olfactory/pheromonal input on OR variants, which provide a clear evolutionary trail that can be followed from unicellular organisms to insects to humans,

Creation vs Evolution? Pre-existing genetic variation, not random mutation

scentoferos

The honeybee is an invertebrate model organism that exemplifies the vertebrate molecular mechanisms of evolution via pre-existing genetic variation, not random mutation, that are detailed here.