Abstract：
:The basic characteristics of the electroencephalograms (EEGs) of the entorhinal cortex (EC) were compared to those of the olfactory bulb (OB) and prepiriform cortex (PPC) in the awake cat, using methods that take into account linear (coherence functions) and non-linear relationships (mutual information). The frequency spectra of EC signals differ from those of EEG signals recorded from OB or PPC, but in the beta frequency band (35-40 Hz) coherent activity between these latter two areas and the EC could be put in evidence. Taking the values of coherence as a measure of linear coupling between populations of neurons, this coupling is strong between PPC and the rostral part of the EC, and becomes weaker towards more lateral, caudal and medial areas. This decrease in coupling is confirmed by non-linear analysis methods. On the basis of intracortical depth profiles it was shown that the beta activity is locally generated in layer II of the EC. Another rhythmic activity was also recorded in EC in the theta frequency range. Theta rhythm is generated mainly in the caudal part of EC. This area has the strongest coupling with the hippocampal formation. These analyses lead to the conclusion that in the EC olfactory and limbic domains have different topographical distributions but with a certain degree of overlap.
journal_name
Brain Resjournal_title
Brain researchauthors
Boeijinga PH,Lopes da Silva FHdoi
10.1016/0006-8993(88)91264-4subject
Has Abstractpub_date
1988-05-17 00:00:00pages
272-86issue
2eissn
0006-8993issn
1872-6240pii
0006-8993(88)91264-4journal_volume
448pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract：:The vomeronasal organ of rat was cultured from embryonic 15-day littermates. During 4-8 days in vitro, vomeronasal axons originating from the explants of vomeronasal organ formed 2-3 large fascicles. When Vicia villosa agglutinin (VVA) was added to the culture medium, fasciculation of the vomeronasal axons was inhibit...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(94)90532-0
更新日期：1994-12-30 00:00:00
abstract：:An HRP study of the frog's superior olivary nucleus (SON) revealed that it (1) receives reciprocal tonotopic projections from dorsal medullary nuclei and principal nuclei of the torus semicircularis (TS) bilaterally; (2) receives bilateral projections from caudalis nuclei and brainstem reticular nuclei, and unilateral...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(86)90998-4
更新日期：1986-01-29 00:00:00
abstract：:Intracerebroventricular (ICV) infusions of 2-deoxy-D-glucose (2-DG) elicited hyperglycemia and increased feeding at short latencies. If access to food was prevented for 6 h post-2-DG infusion, when blood glucose levels were normal and brain 2-DG concentrations were virtually zero, the rats still ate significantly more...
journal_title：Brain research
pub_type： 杂志文章
doi：
更新日期：1980-11-24 00:00:00
abstract：:Somatosensory neurons including nociceptive ones in the medial thalamus have been studied extracellularly, and are classified into three types: nociceptive-specific, wide dynamic range, and tap neurons. However, the morphological characteristics of these three neurons have not yet been clarified. We studied the morpho...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(92)91368-o
更新日期：1992-07-17 00:00:00
abstract：:PGP 9.5 is a new cytoplasmic neuron-specific protein structurally and immunologically distinct from neuron-specific enolase. A specific antiserum has now shown that this protein is widely distributed in vertebrate brains and is also present in cells of the human diffuse neuroendocrine system. PGP 9.5 appears to be old...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(83)90241-x
更新日期：1983-11-14 00:00:00
abstract：:The local cerebral circulatory and metabolic effects of MK-801, a selective non-competitive N-methyl-D-aspartate receptor antagonist have been examined in conscious rats with quantitative autoradiographic techniques using [14C]iodoantipyrine and [14C]2-deoxyglucose as tracers. Local cerebral blood flow (CBF) and local...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(90)90172-8
更新日期：1990-03-19 00:00:00
abstract：:Coated vesicles within dentate gyrus granule cell dendrites were found free in the cytoplasm and also attached to the smooth endoplasmic reticulum and plasmalemma. Coated vesicles began increasing in number 40-48 h following partial dendritic deafferentation. This increase continued up to 15-30 days postlesion, after ...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(81)90076-7
更新日期：1981-04-27 00:00:00
abstract：:Positron emission tomography, using the dopa analogue [18F]6-fluoro-L-dopa, has been used to depict the neostriatum in living monkeys. The amount of 18F that accumulated preferentially in the striatum could be augmented by a peripheral decarboxylase inhibitor. Striatal 18F could also be discharged with reserpine. This...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(83)91187-3
更新日期：1983-11-28 00:00:00
abstract：:The origin of neuronal perikarya which project to the external zone of the median eminence (the tuberoinfundibular neuronal system) was determined in the rat after injection or diffusion of wheat germ agglutinin (WGA) into the median eminence. The retrogradely transported lectin was detected in neurons using an immuno...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(82)90334-1
更新日期：1982-08-05 00:00:00
abstract：:The total number of neurosensory cells in the mouse vomeronasal organ was estimated during postnatal development by counting the cell density and measuring the total volume of the neurosensory cell layer. There is a 43% increase in neurosensory cell number between 1 and 4 months of age, followed by a 21% fall in cell ...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(80)90675-7
更新日期：1980-03-03 00:00:00
abstract：:Patches of transnueronal degeneration were produced in the lateral geniculate nucleus (LGN) by retinal laser burns and a tarsorrhaphy was performed in the contralateral eye of Macaca mulatta during infancy. The adverse effect of unilateral visual deprivation on geniculate cell growth was absent in those portions of de...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(76)90772-1
更新日期：1976-07-30 00:00:00
abstract：:Gabapentin, a drug useful in several neurological and psychiatric disorders, decreased K(+) (15 mM)-induced [Ca(2+)](i) increase in Fura-PE3-loaded rat neocortical synaptosomes (IC(50)=9.7 microM; submaximal inhibition of 28.6%). This effect may indicate a selective modulation of presynaptic Ca(2+) influx in response ...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/s0006-8993(00)02610-x
更新日期：2000-09-01 00:00:00
abstract：:The effect of lactic acidosis on calcium influx, accumulation and efflux was studied in primary cultures of neonatal cortical rat astrocytes. Treatment of cultures with 20 mM sodium lactate, pH 6.0, for 10-60 min resulted in a 35% reduction of 45Ca2+ influx. The decrease in calcium influx was pH dependent because a si...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(93)90371-s
更新日期：1993-02-26 00:00:00
abstract：:The developmental and age-related changes of the dopamine transporter (DAT), and the dopamine D1 and D2 receptor (D1R and D2R) subtypes were investigated in basal ganglia (BG) of human brain. DAT immunostaining was mainly observed in the neuropil, neurons, and glia of the striatum. The DAT-positive neuropil was detect...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/s0006-8993(99)01933-2
更新日期：1999-10-02 00:00:00
abstract：:Intraocular injections of tetrodotoxin were used to block activity for 27 days in normal fish and for the first 27 or 31 days of regeneration in fish with one optic nerve crushed. Synaptic activity was then assessed by a current source-density analysis of field potentials evoked by optic nerve shock at different times...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(83)90958-7
更新日期：1983-06-13 00:00:00
abstract：:Ibogaine, a naturally occurring iboga alkaloid, has been claimed to be effective in treating addiction to opioids and stimulants, and has been reported to inhibit morphine and cocaine self-administration in rats. However, ibogaine also has acute nonspecific side effects (e.g. tremors, decreased motivated behavior in g...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(96)00056-x
更新日期：1996-05-06 00:00:00
abstract：:To investigate the role of Ca2+ in astrocyte volume regulation, we determined Ca2+ fluxes following hypoosmotic stress and how these fluxes were modified by cyclic AMP. In isoosmotic conditions treatment with dibutyryl cyclic AMP (dBcAMP) caused almost a twofold increase in 45Ca2+ uptake. Efflux studies of 45Ca2+ in d...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(94)91634-9
更新日期：1994-05-09 00:00:00
abstract：:Analgesia can be elicited following microinjections of morphine, mu-selective agonists and beta-endorphin into the amygdala. These analgesic responses are mediated by opioid synapses in the periaqueductal gray (PAG) since general (naltrexone), mu (beta-funaltrexamine) and delta2 (naltrindole isothiocyanate) opioid ant...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/s0006-8993(97)01115-3
更新日期：1998-01-01 00:00:00
abstract：:Electroacupuncture (EA) has been reported to alleviate motor deficits in Parkinson's disease (PD) patients, and PD animal models. However, the mechanisms by which EA improves motor function have not been investigated. We have employed a 6-hydroxydopamine (6-OHDA) unilateral injection induced PD model to investigate wh...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/j.brainres.2017.07.027
更新日期：2017-10-15 00:00:00
abstract：:Rapid skin indentations can produce strong tap-like sensations that contain little information about skin indentation depth. Although slower stimuli produce weaker sensations, subjects can more accurately identify how the position of the skin surface changes with respect to the deeper tissues. This dissociation betwee...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(84)90609-7
更新日期：1984-09-10 00:00:00
abstract：:Variations in cerebral blood flow and partial pressures of oxygen and carbon dioxide (pO2, pCO2) were studied in rabbits during short-duration (1 min) immobilization stress. The techniques used enabled us to determine these variables locally in the caudate nucleus in a continuous, simultaneous and quantitative fashion...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(85)90927-8
更新日期：1985-08-12 00:00:00
abstract：:Intracranial pressure (ICP) was monitored to evaluate the therapeutic effect of hyperbaric oxygen (HBO(2)) treatment following traumatic brain injury (TBI). This subject is controversial. The aim of our study was to determine whether HBO(2) treatment has a therapeutic effect on ICP dynamics and survival following seve...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/j.brainres.2005.02.049
更新日期：2005-06-21 00:00:00
abstract：:Finger representation on the first somatosensory cortex was mapped in conscious monkeys by single-unit recording. While representation was somatotopic in area 3, this was not the case in area 2, where the representation of different fingers overlapped. Our results indicate that area 2 is not a pure replica of the rece...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(80)91139-7
更新日期：1980-09-22 00:00:00
abstract：:A basic experiment of peripheral nerve regeneration using neuronal progenitor cells embedded in collagen gel was performed in a rat sciatic nerve defect. First, when neuronal progenitor cells derived from the fetal rat hippocampus were cultured in atelocollagen-containing medium, neurospheres positive for anti-nestin ...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/s0006-8993(03)02539-3
更新日期：2003-06-06 00:00:00
abstract：:The Thy-1 antigen is a cell surface glycoprotein found in neural tissue of all mammalian species so far studied. The distribution and amount of this antigen has been measured on 4 human neuronal and 2 neuroglial cell lines and on fresh tumour cells of neuronal origin. In 3 out of 4 neuronal lines (LAN-1, TR14, CHP 212...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(82)90727-2
更新日期：1982-03-25 00:00:00
abstract：:Water deprivation caused daily urinary Na output to more than double in normal sheep, but caused no increase in Na excretion in sheep (A3VL-sheep) in which the anterior third ventricle wall had been ablated. Dehydrated A3VL-sheep exhibited a much greater degree of hypernatremia than dehydrated normal sheep, although w...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(83)90326-8
更新日期：1983-03-21 00:00:00
abstract：:The functional influence of the cholinergic input to cat dLGN has been examined by assessing the action of iontophoretically applied acetylcholine (ACh) on the visual responses of cells in layers A and A1. Iontophoretically applied pulses of ACh exerted a strong excitatory action on all 113 cells studied within these ...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(83)90059-8
更新日期：1983-12-05 00:00:00
abstract：:We have analyzed the binding properties of the selective D3 receptor agonist [3H]PD 128907 in 120 days old rats. In tissue sections, we found high numbers of binding sites for [3H]PD 128907 both in the islands of Calleja and the caudate-putamen (Bmax values being 500 and 1000 fmol/mg protein, respectively). The KD val...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/s0006-8993(99)01138-5
更新日期：1999-03-20 00:00:00
abstract：:Dentate granule cells can be selectively destroyed by intrahippocampal injections of colchicine. This study evaluates the consequences of granule cell destruction on blood pressure regulation in the normotensive Wistar-Kyoto (WKY) and spontaneously hypertensive rat (SHR). Bilateral destruction of dentate granule cells...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(94)91473-7
更新日期：1994-09-12 00:00:00
abstract：:To understand the role of hypothalamic dopamine in thermoregulation, single unit activity was recorded in vitro, from constantly perfused tissue slices of rat preoptic area and anterior hypothalamus, PO/AH. The firing rate and thermosensitivity of individual PO/AH neurons were determined before, during and after tissu...
journal_title：Brain research
pub_type： 杂志文章
doi：10.1016/0006-8993(84)90364-0
更新日期：1984-07-23 00:00:00
