Abstract：
:Until recently, learning and memory in invertebrate organisms was believed to be mediated by relatively simple presynaptic mechanisms. By contrast, learning and memory in vertebrate organisms is generally thought to be mediated, at least in part, by postsynaptic mechanisms. But new experimental evidence from research using a model invertebrate organism, the marine snail Aplysia, indicates that this apparent distinction between invertebrate and vertebrate synaptic mechanisms of learning is invalid: learning in Aplysia cannot be explained in terms of exclusively presynaptic mechanisms. NMDA-receptor-dependent LTP appears to be necessary for classical conditioning in Aplysia. Furthermore, modulation of trafficking of postsynaptic ionotropic glutamate receptors underlies behavioral sensitization in this snail. Exclusively presynaptic processes appear to support only relatively brief memory in Aplysia. More persistent memory is likely to be mediated by postsynaptic processes, or by presynaptic processes whose expression depends upon retrograde signals.
journal_name
Trends Neuroscijournal_title
Trends in neurosciencesauthors
Roberts AC,Glanzman DLdoi
10.1016/j.tins.2003.09.014subject
Has Abstractpub_date
2003-12-01 00:00:00pages
662-70issue
12eissn
0166-2236issn
1878-108Xpii
S0166-2236(03)00333-3journal_volume
26pub_type
杂志文章,评审abstract：:The human brain can be stimulated by a single intense magnetic pulse over the scalp. Currents induced within the cranium excite the motor cortex and cause limb muscles to contract. The discharge of single motor units, the firing of which is maintained by voluntary effort, can be modulated by magnetic stimuli. Peri-sti...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/0166-2236(91)90029-t
更新日期：1991-09-01 00:00:00
abstract：:The fruit fly, Drosophila melanogaster, has become a model for the study of a growing number of human characteristics because of the power of its genetics. Higher cognitive functions, however, might be assumed to be out of reach for the little fly. But the cumulative history of cognitive studies in insects and some of...
journal_title：Trends in neurosciences
pub_type： 杂志文章
doi：10.1016/j.tins.2004.10.002
更新日期：2004-12-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2008.10.001
更新日期：2009-01-01 00:00:00
abstract：:The vertebrate neuromuscular junction (NMJ), a peripheral synapse formed between motoneuron and skeletal muscle, is characterized by a protracted postnatal period of maturation and life-long maintenance. In neuromuscular disorders such as congenital myasthenic syndromes (CMSs), disruptions of NMJ maturation and/or mai...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2012.04.005
更新日期：2012-07-01 00:00:00
abstract：:For several decades, the reactive gliosis that occurs after an injury to the CNS has been considered one of the major impediments to axonal regeneration. Nevertheless, recent studies have suggested that in certain conditions, reactive astrocytes may provide a permissive substratum to support axonal regrowth. The impor...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/s0166-2236(97)01139-9
更新日期：1997-12-01 00:00:00
abstract：:It is generally thought that monoamines play a nonspecific role in modulating cortical activity. However, several lines of evidence now indicate that cortical monoaminergic afferents show remarkable anatomical specificity. In particular, there is unequivocal evidence for regional, laminar and intracortical specificity...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/0166-2236(89)90037-4
更新日期：1989-09-01 00:00:00
abstract：:The recent advent of novel high-resolution imaging methods has created a flurry of exciting observations that address a century-old question: what are biological signals that regulate formation and elimination of dendritic spines? Contrary to the traditional belief that the spine is a stable storage site of long-term ...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/s0166-2236(99)01499-x
更新日期：2000-02-01 00:00:00
abstract：:Despite its highly diffusible nature, the gaseous signalling molecule nitric oxide (NO) can exert specific effects within the CNS and PNS. To date, the specificity of the actions of NO remains an unsolved puzzle. There are several plausible mechanisms that might account for this specificity in the context of autonomic...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/s0166-2236(02)02261-0
更新日期：2002-12-01 00:00:00
abstract：:Synaptically released glutamate activates extrasynaptic receptors; such actions are controlled by glutamate uptake. Recent experimental findings show that there are many more glutamate transporters on the postsynaptic than presynaptic side of the vicinity of central synapses. This asymmetry favours activation of axona...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/s0166-2236(02)02230-0
更新日期：2002-10-01 00:00:00
abstract：:Gliomas are terrifying primary brain tumors for which patient outlook remains bleak. Recent research provides novel insights into the unique biology of gliomas. For example, these tumors exhibit an unexpected pluripotency that enables them to grow their own vasculature. They have an unusual ability to navigate tortuou...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2012.05.001
更新日期：2012-09-01 00:00:00
abstract：:Strong evidence has been provided that ATP can act as a transmitter not only in smooth muscle but also in peripheral ganglia and in brain. The cloning and molecular identification of two putative ATP receptors supports the previously established pharmacological receptor classifications. This review places into perspec...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/0166-2236(94)90016-7
更新日期：1994-10-01 00:00:00
abstract：:Tissue injury can initiate bidirectional signaling between neurons, glia, and immune cells that creates and amplifies pain. While the ability for neurotransmitters, neuropeptides, and cytokines to initiate and maintain pain has been extensively studied, recent work has identified a key role for reactive oxygen and nit...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2016.10.003
更新日期：2016-12-01 00:00:00
abstract：:Maladaptive responses to stress and the associated hypersecretion of glucocorticoids cause psychopathologies ranging from hyperemotional states and mood dysfunction to cognitive impairments. Research in both humans and animal models has begun to identify morphological correlates of these functional changes. These incl...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2012.08.006
更新日期：2012-12-01 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
pub_type： 杂志文章,评审
doi：10.1016/s0166-2236(99)01405-8
更新日期：1999-07-01 00:00:00
abstract：:Women experience many pain conditions more frequently when compared with men, but the biological mechanisms underlying sex differences in pain remain poorly understood. In particular, little is known about possible sex differences in peripheral nociceptors, the fundamental building blocks of pain transmission. Emergin...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2020.06.003
更新日期：2020-08-01 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
pub_type： 杂志文章,评审
doi：10.1016/s0166-2236(02)02206-3
更新日期：2002-08-01 00:00:00
abstract：:To understand the role of a gene in adult behavior, it is necessary to control its expression in four dimensions: space and time. Two recent papers describe implementation of different but related technologies that now provide this missing element in fly behavioral research. ...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2004.06.013
更新日期：2004-09-01 00:00:00
abstract：:In contrast to innocuous stimuli, which only have transient effects when applied to the body surface, noxious stimuli generate persistent changes in the nervous system. This nociceptive memory manifests itself most prominently as a post-injury sensitization where, after tissue damage, the avoidance reaction and pain t...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/0166-2236(91)90024-o
更新日期：1991-02-01 00:00:00
abstract：:The nervous system is made up of many specific types of neuron intricately intertwined to form complex networks. Identifying and defining the characteristic features of the many different neuronal types is essential for achieving a cellular understanding of complex activity from perception to cognition. So far, cortic...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2003.08.002
更新日期：2003-10-01 00:00:00
abstract：:The ability to map functional activity in the living human brain has rekindled interest in the organization of human neural circuitry specifically and in animal neural circuitry generally. Faced with incredible complexity, researchers are turning to the power of computer graphics for two- and three-dimensional interac...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/0166-2236(95)92766-j
更新日期：1995-11-01 00:00:00
abstract：:Schizophrenia (SZ) is primarily an adult psychiatric disorder in which disturbances caused by susceptibility genes and environmental insults during early neurodevelopment initiate neurophysiological changes over a long time course, culminating in the onset of full-blown disease nearly two decades later. Aberrant postn...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2009.05.007
更新日期：2009-09-01 00:00:00
abstract：:How did brains evolve to become so complex, and what is their future? Brains pose an explanatory challenge because entropy, which inexorably increases over time, is commonly associated with disorder and simplicity. Recently we showed how evolution is an entropic process, building structures - organisms - which themsel...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2020.04.008
更新日期：2020-07-01 00:00:00
abstract：:Lyme disease is of interest to the neurologist and neuroscientist for a variety of reasons. As more arthropod hosts throughout the world are infected with the causative organism, Borrelia burgdorferi, the illness in humans is becoming more prevalent; in addition, recognition of the disease in humans and susceptible an...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/0166-2236(89)90065-9
更新日期：1989-05-01 00:00:00
abstract：:Recognition of foreign or misplaced nucleic acids is one of the principal modes by which the immune system detects pathogenic entities. When cytosolic DNA is sensed, a signal is relayed via the cGAS-STING pathway: this involves the activation of cyclic GMP-AMP (cGMP-AMP) synthase (cGAS) and generation of the cyclic di...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2020.10.008
更新日期：2021-02-01 00:00:00
abstract：:Neurons are dynamic cells that respond and adapt to stimuli throughout their long postmitotic lives. The structural and functional plasticity of neurons requires the regulated transcription of new gene products, and dysregulation of transcription in either the developing or adult brain impairs cognition. We discuss ho...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2018.02.009
更新日期：2018-05-01 00:00:00
abstract：:Striatal enriched tyrosine phosphatase (STEP) has recently been identified as a crucial player in the regulation of synaptic function. It is restricted to neurons within the CNS and acts by downregulating the activity of MAP kinases, the tyrosine kinase Fyn and NMDA receptors. By modulating these substrates, STEP acts...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2006.06.007
更新日期：2006-08-01 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
pub_type： 杂志文章,评审
doi：10.1016/0166-2236(90)90005-u
更新日期：1990-04-01 00:00:00
abstract：:Intensive mapping of the essential cerebellar brain circuits for Pavlovian eyeblink conditioning appeared relatively complete by 2000, but new data indicate the need for additional differentiation of cerebellar regions and mechanisms coding delay and trace conditioning. This is especially important, as trace condition...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2007.11.006
更新日期：2008-02-01 00:00:00
abstract：:Dendritic spines, small bulbous postsynaptic compartments emanating from neuronal dendrites, have been thought to serve as basic units of memory storage. Despite their small size (~0.1 femtoliter), thousands of species of proteins exist in the spine, including receptors, channels, scaffolding proteins and signaling en...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/j.tins.2011.12.002
更新日期：2012-02-01 00:00:00
abstract：:The molecular nature of the metabotropic GABA(B) receptor was for some time a mystery, however it was recently discovered that two related G-protein-coupled receptors have to heterodimerize to form the functional GABA(B) receptor at the cell surface. This review discusses the most recent findings in the rapidly expand...
journal_title：Trends in neurosciences
pub_type： 杂志文章,评审
doi：10.1016/s0166-2236(00)01815-4
更新日期：2001-05-01 00:00:00
