منابع مشابه
Wiring Optimization in the Brain
La Jolla, CA 92037 [email protected] The complexity of cortical circuits may be characterized by the number of synapses per neuron. We study the dependence of complexity on the fraction of the cortical volume that is made up of "wire" (that is, ofaxons and dendrites), and find that complexity is maximized when wire takes up about 60% of the cortical volume. This prediction is in good agreement w...
متن کاملSpatiotemporal reorganization of growth rates in the evolution of ontogeny.
Heterochrony, evolutionary changes in rate or timing of development producing parallelism between ontogeny and phylogeny, is viewed as the most common type of evolutionary change in development. Alternative hypotheses such as heterotopy, evolutionary change in the spatial patterning of development, are rarely entertained. We examine the evidence for heterochrony and heterotopy in the evolution ...
متن کاملDiscovering the wiring diagram of the brain
he brain, the seat of our cognitive abilities, is perhaps the most complex puzzle in all of biology. Every second in the human brain, billions of cortical nerve cells transmit billions of messages and perform extraordinarily complex computations. How the brain works—how its function follows from its structure—remains a mystery. The brain's vast numbers of nerve cells are interconnected at synap...
متن کاملElectrical Wiring of the Oscillating Brain
In this issue of Neuron, two laboratories (Deans et al. and Hormuzdi et al.) find that cortical gamma oscillation in vitro is impaired in the Cx36 knockout mouse. What are the implications?
متن کاملSpatiotemporal distribution of essential elements through Populus leaf ontogeny
We examined the spatiotemporal distribution and accumulation of calcium (Ca), potassium (K), and zinc (Zn) during the growth and maturation of grey poplar (Populus tremula × alba) leaves covering plastochrons 01 through 10. This period spans the sugar sink-to-source transition and requires coordinated changes of multiple core metabolic processes that likely involve alterations in essential and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science Advances
سال: 2019
ISSN: 2375-2548
DOI: 10.1126/sciadv.aav9694