Abstract:
:The duration of the sensitive period of the kitten visual cortex to the effects of monocular deprivation was explored by studies of the behavioral and physiological recovery from extended periods of monocular occlusion imposed from birth, and by examination of the physiological effects of a 3 month period of monocular occlusion imposed on animals at either 4, 5, 6, 7 or 8 months of age. Animals monocularly deprived until 4 months of age eventually show considerable behavioral and physiological recovery from the severe deficits observed immediately following termination of the period of deprivation. The conclusion that binocular connectivity may still be altered by the nature of the animal's visual input beyond 4 months of age was supported by the results obtained from animals that were monocularly deprived at 4 months of age or older. Animals deprived at either 4, 5 or 6 months showed a clear shift of cortical ocular dominance in favour of the non-deprived eye, but those deprived at 7 or 8 months showed approximately normal ocular dominance distributions. It is concluded that the sensitive period lasts at least twice as long as previously thought, to between 6 and 8 months of age.
journal_name
Brain Resjournal_title
Brain researchauthors
Cynader M,Timney BN,Mitchell DEdoi
10.1016/0006-8993(80)91303-7subject
Has Abstractpub_date
1980-06-09 00:00:00pages
545-50issue
2eissn
0006-8993issn
1872-6240pii
0006-8993(80)91303-7journal_volume
191pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::The possibility has been mentioned that a change in the structure is responsible for the deviant behavioral activity of gamma-endorphin in extracts of postmortem brain and pituitary gland samples of schizophrenic patients. This paper describes the investigation of this possibility by means of: amino acid composition a...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)90896-6
更新日期:1986-06-18 00:00:00
abstract::Antimitotic drugs used in the chemotherapeutic treatment of cancers induce undesirable but unavoidable side-effects from interruption of normal mitotic processes throughout the body. We have examined whether several such drugs capable of penetrating the blood-brain barrier - thioTEPA and 5-fluorouracil - influence the...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2006.06.093
更新日期:2006-09-21 00:00:00
abstract::Changes in GABA(A) receptor alpha(1) subunit gene expression occur in the globus pallidus and substantia nigra pars reticulata following lesions of the nigrostriatal tract. To determine whether these changes are translated at the protein level, we performed quantitative autoradiography with the alpha(1) selective liga...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(00)02081-3
更新日期:2000-04-17 00:00:00
abstract::Recent studies have confirmed the presence of insulin receptors in the rat brain although their function has still not been well defined. The present study explores the possibility that insulin receptors in the brain can alter or contribute to central neurotransmission. Insulin caused a dose-dependent inhibition of hi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)91028-x
更新日期:1984-08-20 00:00:00
abstract::The pedunculopontine tegmental nucleus (PPT) has been implicated in the generation and/or maintenance of both active sleep (AS) and wakefulness (W). GABAergic neurons are present within this nucleus and recent studies have shown that these neurons are active during AS. In order to examine the role of mesopontine GABAe...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(02)02475-7
更新日期:2002-07-19 00:00:00
abstract::The present study was undertaken in order to study the rate of maturation of the cochlear action potential sensitivity, latency, and tuning curves for various stimulus frequencies and to correlate the development of latency and frequency selectivity with threshold development. This study showed a two-stage model of ma...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0165-3806(87)90239-2
更新日期:1987-12-15 00:00:00
abstract::Recently developed antisera selective for angiotensin Type 2 (AT2) receptors were used to localize AT2 receptors in rat brain by immunohistochemistry. While the results from these experiments were largely consistent with previous autoradiographic and radioligand binding analyses of AT2 receptor populations in brain, t...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90794-3
更新日期:1994-10-31 00:00:00
abstract::Male Wistar rats were anaesthetized, injected intracisternally (i.c.) with saline or colchicine and were decapitated at various time intervals. Trunk blood was collected for the determination of immunoreactive adrenocorticotropic hormone (ACTHi) by radioimmunoassay (RIA) and of corticosterone by a fluorometric assay. ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)91517-x
更新日期:1988-03-01 00:00:00
abstract::The distribution of alpha scorpion toxin (alpha-ScTx) receptors was examined in differentiated mouse neuroblastoma cell cultures (N IE 115 clone) by electron microscope autoradiography using [125I]alpha-ScTx. This neurotoxin binds specifically to voltage-sensitive sodium channels, slowing down the inactivation of the ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(85)90561-x
更新日期:1985-05-13 00:00:00
abstract::Given a hypothesised role for CCK in the anterior cingulate cortex (ACC) for the sensation of pain, the aim of the present study was to investigate whether the increased CCK release could be affected by two different analgesic drugs, morphine and the non-selective cyclooxygenase inhibitor diclofenac. Since opioids sti...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2006.12.006
更新日期:2007-03-09 00:00:00
abstract::Previous studies have shown that access to conceptual/semantic information precedes phonological access in alphabetic language production such as English or Dutch. The present study investigated the time course of semantic and orthographic encoding in Chinese (a non-alphabetic language) spoken word production. Partici...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2009.03.049
更新日期:2009-06-01 00:00:00
abstract::Infusion of 15 micrograms/microliters (approximately 120 micrograms/kg/h) of indomethacin within the ventral septal area of the rat brain significantly reduced a centrally induced prostaglandin E1 (PGE1) hyperthermia when compared with infusions of artificial cerebrospinal fluid. A bolus injection of a V1 receptor ant...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)90599-4
更新日期:1989-08-14 00:00:00
abstract::Dysfunction in the hypothalamic GABAergic system has been implicated in panic syndrome in humans. Furthermore, several studies have implicated the hypothalamus in the elaboration of pain modulation. Panic-prone states are able to be experimentally induced in laboratory animals to study this phenomenon. The aim of the ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2009.09.096
更新日期:2009-12-11 00:00:00
abstract::CNS inflammation is a sequela of a variety of neuropathological conditions resulting in extensive tissue loss. Inflammation is mediated primarily by phagocytic cells, but the mechanisms of CNS tissue destruction are not fully understood. Hypochlorous acid (HOCl) is by far the most abundant agent generated by phagocyti...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2003.09.080
更新日期:2004-02-06 00:00:00
abstract::Pharmacological characteristics of native neuronal nicotinic acetylcholine receptor-mediated ion currents in mouse N1E-115 neuroblastoma cells have been investigated by superfusion of voltage clamped cells with known concentrations of the agonists acetylcholine, nicotine and cytisine, and the antagonists alpha-bungaro...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90493-6
更新日期:1994-08-22 00:00:00
abstract::Fetal mouse retinal ganglion cell axons have been shown to ramify within co-cultured basement membrane secreting tumor explants and upon isolated basement membranes. Here we report that laminin, a glycoprotein found in basement membranes and adhesion sites of a variety of cell types, acted as a substrate for retinal e...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0165-3806(84)90184-6
更新日期:1984-01-01 00:00:00
abstract::Intracisternal injections of hypocretin-1 (hcrt-1) have been shown to elicit sympathoexciatory responses. However, the location of central sites that may mediate these cardiovascular effects have not been clearly elucidated. This study was done in male Wistar rats to investigate the effects of microinjections of hcrt-...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2003.08.008
更新日期:2003-11-21 00:00:00
abstract::The effects of sex steroids on immunoreactive beta-endorphin (EP) release from the rat hypothalamus in vitro were examined using a rat hypothalamic perifusion system and an EP RIA. Testosterone (1-100 ng/ml) and estradiol (10-100 pg/ml) stimulated EP release in a dose-dependent manner. Dehydroepiandrosterone (DHEA, 1-...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)90221-g
更新日期:1991-07-05 00:00:00
abstract::The influence of dopamine D1 receptor agonist, SKF 38393 has been studied in vitro in the model of low calcium spontaneous epileptiform discharges. Application of SKF 38393 (3 microM) to the perfusing medium evoked a decrease in neuronal firing rate of hippocampal CA1 neurons. The effect of SKF 38393 was blocked by pr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(90)90208-s
更新日期:1990-09-24 00:00:00
abstract::Adipose-derived stem cells (ASCs) are readily accessible multipotent mesenchymal stem cells and are known to secrete multiple growth factors, and thereby to have cytoprotective effects in various injury models. In the present study, the authors investigated the neuroprotective effect of ASCs in an intracerebral hemorr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2007.09.005
更新日期:2007-12-05 00:00:00
abstract::Noxious heat applied to the footpad evokes the expression of fos protein-like immunoreactivity in the rat spinal cord lumbar dorsal horn. Electrical stimulation in the medullary nucleus raphe magnus (NRM) while not evoking fos-like immunoreactivity itself, reduced significantly the number of neurons (to 50% of control...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(90)91306-2
更新日期:1990-10-22 00:00:00
abstract::GABA-A receptors mediate both phasic synaptic inhibition and more recently appreciated tonic currents in the vertebrate central nervous system. We addressed discrepancies in the literature regarding the pharmacology of tonic currents by examining tonic currents in a controlled environment of dissociated, solitary glut...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2006.08.033
更新日期:2006-11-06 00:00:00
abstract::Reciprocal interactions between nitrergic and dopaminergic systems play a key role in the control of motor behavior. In the present study, we performed a comparative analysis of motor behavior (locomotor activity, catalepsy, rotational behavior) and monoamine metabolism in the striatum and substantia nigra of unilater...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2015.08.006
更新日期:2015-11-02 00:00:00
abstract::The conduction velocity of frog ischiadic nerves incubated in vitro in osmolarities between 220 and 1000 mOsm decreased with the degree of fiber shrinkage. The latter (non-circularity factor) was determined from computer-assisted measurements in freeze-substituted or in chemically fixed fibers. Freeze-substituted norm...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)90546-8
更新日期:1984-04-09 00:00:00
abstract::Male Long-Evans rats were administered nicotine bitartrate or sodium tartrate either during adolescence (p29-43) or adulthood (p80-94). Route of administration was via subcutaneously implanted osmotic pump (initial dose 2.0 mg/kg/day, free base). Five weeks following nicotine administration, brains were processed for ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2007.03.019
更新日期:2007-06-02 00:00:00
abstract::1-(p-Bromobenzoyl)-piperazine-2,3-dicarboxylic acid (pBB-PzDA; 0.03-5 mM), an excitatory amino acid antagonist, was perfused through the guinea pig cochlea while monitoring various cochlear potentials. pBB-PzDA (1-5 mM) reversibly suppressed the amplitude of the compound action potential of the auditory nerve (CAP) an...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)90934-7
更新日期:1989-05-15 00:00:00
abstract::This study shows that the axons of some raphespinal sympathoinhibitory neurons projecting to the third thoracic spinal segment emit branches in the third-fourth cervical spinal segments of cats. This was demonstrated by using time-controlled collision of neuronal action potentials initiated by stimuli applied at these...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)91417-5
更新日期:1988-02-16 00:00:00
abstract::5-HT2 receptor binding sites were measured (by saturation binding of [3H]ketanserin) in brain tissue obtained at postmortem from 19 suicide victims with definite evidence of depression and 19 sex and age-matched control subjects. Five of the suicide victims were receiving antidepressant drugs prior to death; 13 suicid...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)91621-6
更新日期:1988-03-08 00:00:00
abstract::Entopeduncular nucleus (EPN) cells which project to thalamic and non-thalamic sites were identified by antidromic discharge. Each population of cells, projecting to the ventral anterior nucleus of the thalamus (VA), centrum medianum (CM), the lateral habenula (LHB), and the pedunculopontine nucleus (PP), was distribut...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(78)90993-9
更新日期:1978-11-17 00:00:00
abstract::Insulin-like 6 immunoreactivity (irINSL6) was detected in Leydig cells of the mouse testis. In the brain, labeled somata were detected mainly in the caudal hypothalamus and midbrain. Double labeling the brainstem sections revealed that irINSL6 somata were 5-hydroxytryptamine (5-HT) positive. The presence of irINSL6 in...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2005.01.077
更新日期:2005-04-08 00:00:00