A neuroendocrine mechanism for sustaining fear.

abstract：:The precise modulation of regional cerebral blood flow during neural activation is important for matching local energetic demand and supply and clearing brain metabolites. Here we discuss advances facilitated by high-resolution optical in vivo imaging techniques that for the first time have provided direct visualizati...

journal_title：Trends in neurosciences

authors： Grutzendler J,Nedergaard M

更新日期：2019-08-01 00:00:00

abstract：:Volumetric measurements of the brain regions in eight-year-old children indicate that the poor cognitive and behavioral outcomes noted in ex-preterm neonates are associated with reduced volumes of specific regions in the brain. Recent literature suggests that this reduction might result from enhanced apoptosis or exci...

journal_title：Trends in neurosciences

authors： Bhutta AT,Anand KJ

更新日期：2001-03-01 00:00:00

abstract：:Interaural time differences (ITDs) represent an important cue in sound localization and auditory scene analysis. To assess this cue the auditory system internally delays binaural inputs to compensate for the outer delay, before neurons in the brainstem detect the coincident arrival of the inputs from the two ears. Dif...

journal_title：Trends in neurosciences

authors： Vonderschen K,Wagner H

更新日期：2014-05-01 00:00:00

abstract：:Axonal transport is critical for neuronal homeostasis and relies on motor complexes bound to cargoes via specific adaptors. However, the mechanisms responsible for the spatiotemporal regulation of axonal transport are not completely understood. A recent study by Liao et al. contributes to filling this gap by reporting...

journal_title：Trends in neurosciences

authors： Fratta P,Birsa N,Tosolini AP,Schiavo G

更新日期：2020-01-01 00:00:00

abstract：:The myelinated axon provides a model in which it is possible to examine how various types of ion channels are incorporated into a membrane to form an excitable neuronal process. The available evidence now indicates that mammalian myelinated fibers contain a repertoire of physiologically active membrane molecules inclu...

journal_title：Trends in neurosciences

authors： Black JA,Kocsis JD,Waxman SG

更新日期：1990-02-01 00:00:00

abstract：:Recently, two large multigene families of putative G-protein-linked receptors that are expressed in distinct subpopulations of neurones in the vomeronasal organ have been identified. These receptors probably mediate pheromone detection. The most surprising aspects of these findings are that there are so many receptors...

journal_title：Trends in neurosciences

authors： Tirindelli R,Mucignat-Caretta C,Ryba NJ

更新日期：1998-11-01 00:00:00

abstract：:The brain includes multiple types of interconnected excitatory and inhibitory neurons that together allow us to move, think, feel, and interact with the environment. Inhibitory interneurons (INs) comprise a small, heterogeneous fraction, but they exert a powerful and tight control over neuronal activity and consequent...

journal_title：Trends in neurosciences

authors： Rapanelli M,Frick LR,Pittenger C

更新日期：2017-07-01 00:00:00

abstract：:Huntington's disease (HD) is an autosomal, dominantly inherited neurodegenerative disorder that is characterized by abnormal involuntary movements (chorea), intellectual impairment and selective neuronal loss. The expansion of a polymorphic trinucleotide repeat (the sequence CAG that codes for glutamine) to a length t...

journal_title：Trends in neurosciences

authors： Reddy PH,Williams M,Tagle DA

更新日期：1999-06-01 00:00:00

abstract：:The complexity and inaccessibility of the vertebrate CNS impede the localization and description of memory traces and the definition of the processes that create them. Recent work has shown that the spinal stretch reflex (SSR), which is produced by a monosynaptic two-neuron pathway, can be operantly conditioned, and t...

journal_title：Trends in neurosciences

authors： Wolpaw JR,Carp JS

更新日期：1990-04-01 00:00:00

abstract：:Advances in understanding the biology of neurotrophic factors and their signaling pathways have provided important insights into the normal growth, differentiation and maintenance of neurons. Stimulated by neuropathological observations and genetic discoveries, studies in cell and animal models of neurodegenerative di...

journal_title：Trends in neurosciences

authors： Salehi A,Delcroix JD,Mobley WC

更新日期：2003-02-01 00:00:00

abstract：:Hebbian synaptic learning requires co-activation of presynaptic and postsynaptic neurons. However, under some conditions, information regarding the postsynaptic action potential, carried by backpropagating action potentials, can be strongly degraded before it reaches the distal exhibit Hebbian long-term potentiation (...

journal_title：Trends in neurosciences

authors： Mehta MR

更新日期：2004-02-01 00:00:00

abstract：:Extracellular acid can have important effects on neuron function. In central and peripheral neurons, acid-sensing ion channels (ASICs) have emerged as key receptors for extracellular protons, and recent studies suggest diverse roles for these channels in the pathophysiology of pain, ischemic stroke and psychiatric dis...

journal_title：Trends in neurosciences

authors： Wemmie JA,Price MP,Welsh MJ

更新日期：2006-10-01 00:00:00

abstract：:The term neuropeptide was advanced by de Wied and collaborators in the early seventies. At that time, they defined neuropeptides as endogenous substances synthesized in nerve cells and involved in nervous system functions. Since then, several studies have revealed that the very same 'neuropeptides' are also expressed ...

journal_title：Trends in neurosciences

authors： Ubink R,Calza L,Hökfelt T

更新日期：2003-11-01 00:00:00

abstract：:Antisocial aggression is a widespread and expensive social problem. Although aggressive behaviors and temperament are highly heritable, clinical and trait associations for the most promising candidate gene for aggression, MAOA, have been largely inconsistent. We suggest that limitations inherent to that approach might...

journal_title：Trends in neurosciences

authors： Buckholtz JW,Meyer-Lindenberg A

更新日期：2008-03-01 00:00:00

abstract：:Recent years have seen a flourishing literature on detection of circulating autoantibodies against neurotransmitter receptors in patients with neuropsychiatric disorders. These studies have generated hope for a better understanding of the underlying molecular dysfunctions and for appropriate therapeutic strategies. Ho...

journal_title：Trends in neurosciences

authors： Jézéquel J,Johansson EM,Leboyer M,Groc L

更新日期：2018-08-01 00:00:00

abstract：:The nervous system contains a diverse group of cells. Specification of the correct cell fate is obviously important for the proper function of the nervous system, yet how are the fates of different neurons determined during development? Very little is known about the underlying molecular mechanisms used in the mammali...

journal_title：Trends in neurosciences

authors： Jan YN,Jan LY

更新日期：1990-12-01 00:00:00

abstract：:How does an extracellular guidance molecule direct multiple growth cones to different positions? The answer is important for understanding the development of complex neural connections. UNC-6 is a member of the netrin family of guidance proteins. It has phylogenetically conserved domains that mediate its different gui...

journal_title：Trends in neurosciences

authors： Wadsworth WG

更新日期：2002-08-01 00:00:00

abstract：:The current dominant model of binaural sound localization proposes that the lateral position of a sound source is determined by the position of maximal activation within an array of binaural coincidence-detector neurons that are tuned to different interaural time differences (ITDs). The tuning of a neuron for an ITD i...

journal_title：Trends in neurosciences

authors： McAlpine D,Grothe B

更新日期：2003-07-01 00:00:00

abstract：:Nearly 30 years ago, a debate over two disparate models of synaptic vesicle retrieval arose. Subsequent investigations to determine which model was correct proved inconclusive and served only to further the debate. However, recent evidence has begun to suggest that both models are valid and relevant in understanding t...

journal_title：Trends in neurosciences

authors： Wilkinson RS,Cole JC

更新日期：2001-04-01 00:00:00

abstract：:The limitation of immune responsiveness in the mammalian CNS has been attributed to the intricate nature of neuronal networks, which would appear to be more susceptible than other tissues to the threat of permanent disorganization when exposed to massive inflammation. This line of logic led to the conclusion that all ...

journal_title：Trends in neurosciences

authors： Schwartz M,Moalem G,Leibowitz-Amit R,Cohen IR

更新日期：1999-07-01 00:00:00

abstract：:Anhedonia, or markedly diminished interest or pleasure, is a hallmark symptom of major depression, schizophrenia and other neuropsychiatric disorders. Over the past three decades, the clinical definition of anhedonia has remained relatively unchanged, although cognitive psychology and behavioral neuroscience have expa...

journal_title：Trends in neurosciences

authors： Der-Avakian A,Markou A

更新日期：2012-01-01 00:00:00

abstract：:Tsao et al. have recently used functional magnetic resonance imaging to compare processing for moving stereoscopic forms in macaque and human brains. Most humans exhibited activation in a swath of lateral occipital areas, extending into the intraparietal sulcus, with a limited version of the same pattern in monkeys. H...

journal_title：Trends in neurosciences

authors： Tyler CW

更新日期：2004-03-01 00:00:00

abstract：:Sleep can facilitate memory formation, but its role in cortical plasticity is poorly understood. A recent study found that sleep, following monocular deprivation (MD), facilitated cortical changes in ocular dominance. The magnitude of plasticity was similar to that observed after continued MD, and larger than that see...

journal_title：Trends in neurosciences

authors： Hoffman KL,McNaughton BL

更新日期：2002-01-01 00:00:00

abstract：:Purinergic receptors, represented by several families, are arguably the most abundant receptors in living organisms and appeared early in evolution. After slow acceptance, purinergic signalling in both peripheral and central nervous systems is a rapidly expanding field. Here, we emphasize purinergic co-transmission, m...

journal_title：Trends in neurosciences

authors： Abbracchio MP,Burnstock G,Verkhratsky A,Zimmermann H

更新日期：2009-01-01 00:00:00

abstract：:Relief from pain in humans is rewarding and pleasurable. Primary rewards, or reward-predictive cues, are encoded in brain reward/motivational circuits. While considerable advances have been made in our understanding of reward circuits underlying positive reinforcement, less is known about the circuits underlying the h...

journal_title：Trends in neurosciences

authors： Navratilova E,Atcherley CW,Porreca F

更新日期：2015-11-01 00:00:00

abstract：:The activation of peripheral nociceptors is the subject of intense scrutiny, because of its significance in pain regulation. Genetic approaches, including homology cloning, difference cloning and transgenic manipulation of mice are providing useful insights into nociceptor function. Recent work suggests that transcrip...

journal_title：Trends in neurosciences

authors： Akopian AN,Abson NC,Wood JN

更新日期：1996-06-01 00:00:00

abstract：:Much research effort into synaptic plasticity has been motivated by the idea that modifications of synaptic weights (or strengths or efficacies) underlie learning and memory. Here, we examine the possibility of exploiting the statistics of experimentally measured synaptic weights to deduce information about the learni...

journal_title：Trends in neurosciences

authors： Barbour B,Brunel N,Hakim V,Nadal JP

更新日期：2007-12-01 00:00:00

abstract：:Changes in the actin cytoskeleton are a primary mechanism mediating the morphological and functional plasticity that underlies learning and memory. The synaptic Ras homologous (Rho) guanine nucleotide exchange factors (GEFs) Kalirin and Trio have emerged as central regulators of actin dynamics at the synapse. The incr...

journal_title：Trends in neurosciences

authors： Paskus JD,Herring BE,Roche KW

更新日期：2020-07-01 00:00:00

abstract：:Patients suffering from severe depression often show an increased activity of the hypothalamic-pituitary-adrenocortical (HPA) system, a premature escape from the cortisol suppressant action of dexamethasone, and a number of other neuroendocrine changes. This might be explained by defective glucocorticoid feedback inhi...

journal_title：Trends in neurosciences

authors： Barden N,Reul JM,Holsboer F

更新日期：1995-01-01 00:00:00

abstract：:Amyotrophic lateral sclerosis (ALS) is a lethal disease that is characterized by the relentless death of motoneurons. Mutations to Cu-Zn superoxide dismutase (SOD), though occurring in just 2-3% of individuals with ALS, remain the only proven cause of the disease. These mutations structurally weaken SOD, which indirec...

journal_title：Trends in neurosciences

authors： Beckman JS,Estévez AG,Crow JP,Barbeito L

更新日期：2001-11-01 00:00:00