Bifurcation structure of adaptation versus depolarization block
نویسندگان
چکیده
منابع مشابه
Exploring Neuronal Bistability at the Depolarization Block
Many neurons display bistability--coexistence of two firing modes such as bursting and tonic spiking or tonic spiking and silence. Bistability has been proposed to endow neurons with richer forms of information processing in general and to be involved in short-term memory in particular by allowing a brief signal to elicit long-lasting changes in firing. In this paper, we focus on bistability th...
متن کاملStudying Renal Artery Bifurcation Structure in Male Dogs
Introduction: Arteries are made up three layers; tunica intima, tunica media, and tunica adventitia. However, in some part of the artery this structure may change. The greatest change occurs at the junctions and bifurcations. In this regard, we decided to study the renal artery bifurcation just where the renal arteries divide into smaller arteries before entering the kidney. Methods: The struc...
متن کاملBifurcation Structure in Diversity
We propose a measure of total population diversity D of an evolving population of genetically speci-ed individuals. Total diversity D is the sum of two components, within-gene diversity W g and between-gene diversity B g. We observe the dynamics of diversity in the context of a particular model, a two-dimensional world with organisms competing for resources and evolving by natural selection act...
متن کاملDepolarization block of neurons during maintenance of electrographic seizures.
Epileptic seizures are associated with neuronal hyperactivity. Here, however, we investigated whether continuous neuronal firing is necessary to maintain electrographic seizures. We studied a class of "low-Ca2+" ictal epileptiform bursts, induced in rat hippocampal slices, that are characterized by prolonged (2-15 s) interruptions in population spike generation. We found that, during these inte...
متن کاملBifurcation into Functional Niches in Adaptation
One of the central questions in evolutionary biology concerns the dynamics of adaptation and diversification. This issue can be addressed experimentally if replicate populations adapting to identical environments can be investigated in detail. We have studied 501 such replicas using digital organisms adapting to at least two fundamentally different functional niches (survival strategies) presen...
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: BMC Neuroscience
سال: 2012
ISSN: 1471-2202
DOI: 10.1186/1471-2202-13-s1-p169