نتایج جستجو برای: place neuron
تعداد نتایج: 261670 فیلتر نتایج به سال:
Discussions of the hippocampus often focus on place cells, but many neurons are not place cells in any given environment. Here we describe the collective activity in such mixed populations, treating place and non-place cells on the same footing. We start with optical imaging experiments on CA1 in mice as they run along a virtual linear track and use maximum entropy methods to approximate the di...
reserches show that relationship between human and residential places is based upo both emotional and identity structures. in other words, habitat place is not only the creator of a part of humanistic identity but also form a kind of sentimental and emotional bond that may result in tendency to maintain closeness to a specific place. therefor, formaton of emotional and identity relationship wit...
The present study has examined whether the temporal pitch known as the "missing fundamental" is co-place-coded with the place pitch in the auditory cortex, using adult Japanese monkeys (Macaca fuscata) prepared for chronic recordings. The stimuli were white noise bursts, tone bursts and bursts of a combination of higher harmonics of a low frequency. Unit recordings were made from the contralate...
Hippocampal pyramidal cells can be divided into place cells, which fire action potentials when an animal is in specific locations, and silent cells, which are not spatially selective. In this issue of Neuron, Epsztein et al. find intracellular differences between place and silent cells by using whole-cell recordings in freely moving rats.
The factors that control the spatial tuning of hippocampal neurons are incompletely understood, and there is no generally agreed upon definition of what constitutes a "place field". One factor that must be considered is the phenomenon of "phase precession". As a rat passes through the place field of a particular hippocampal neuron, its spikes shift to earlier phases of the theta rhythm. Except ...
منتول (menthol) از جمله ترپن هایی است که به عنوان یک ترکیب آلی اصلی در بسیاری از اسانس های روغنی معطر از جمله نعناع وجود دارد. معروفترین اثر منتول، ایجاد حس سرما بواسطه ی فعالسازی کانال های trpm8 می باشد با اینحال این ترکیب در تعدیل عملکرد برخی از کانال های یونی و رسپتورها نیز نقش دارد. در تحقیق حاضر اثرات منتول بر الگوی فعالیت نورون های حلزون بررسی شد. ثبت داخل سلولی به روش تثبیت جریان تک الکت...
Rate and phase codes are believed to be important in neural information processing. Hippocampal place cells provide a good example where both coding schemes coexist during spatial information processing. Spike rate increases in the place field, whereas spike phase precesses relative to the ongoing theta oscillation. However, what intrinsic mechanism allows for a single neuron to generate spike ...
Introduction: The induction of human umbilical cord-derived mesenchymal stem cells (HUC-MSCs) toward dopaminergic neurons is a major challenge in tissue engineering and experimental and clinical treatments of various neurodegenerative diseases, including Parkinson disease. This study aims to differentiate HUC-MSCs into dopaminergic neuron-like cells. Methods: Following the isolation and charac...
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