It is a widespread notion that the proportion of glial to neuronal cells in the brain increases
with brain size, to the point that glial cells represent “about 90% of all cells in the human …

Evolution by natural selection, the unifying theory of all biological sciences, provides a basis
for understanding how phenotypic variability is generated at all levels of organization from …

Uniformity, local variability, and systematic variation in neuron numbers per unit of cortical
surface area across species and cortical areas have been claimed to characterize the …

Rodents are a major order of mammals that is highly diverse in distribution and lifestyle. Five
suborders, 34 families, and 2,277 species within this order occupy a number of different …

The density of cells and neurons in the neocortex of many mammals varies across cortical
areas and regions. This variability is, perhaps, most pronounced in primates. Nonuniformity …

Most of what we know about cortical map development and plasticity comes from studies in
mice and rats, and for the somatosensory cortex, almost exclusively from the whisker …

For three decades, IBNS has provided a forum for the dissemination of behavioral
neuroscience research, broadly defined. Throughout this time, research presented at the …

The neocortex is one of the most distinctive structures of the mammalian brain, yet also one
of the most varied in terms of both size and organization. Multiple processes have …

Determining the cellular composition of specific brain regions is crucial to our understanding
of the function of neurobiological systems. It is therefore useful to identify the extent to which …

Introduction: Transitions in temporal niche have occurred many times over the course of
mammalian evolution. These are associated with changes in sensory stimuli available to …