Abstract:
:Long-term depression (LTD) is a lasting decrease in synaptic effectiveness that follows some types of electrical stimulation in the hippocampus. Two broad types of LTD may be distinguished. Heterosynaptic LTD can occur at synapses that are inactive, normally during high-frequency stimulation of a converging synaptic input. Homosynaptic LTD can occur at synapses that are activated, normally at low frequencies. Here we discuss the mechanisms of LTD and their possible relevance to hippocampal function.
journal_name
Annu Rev Neuroscijournal_title
Annual review of neuroscienceauthors
Bear MF,Abraham WCdoi
10.1146/annurev.ne.19.030196.002253subject
Has Abstractpub_date
1996-01-01 00:00:00pages
437-62eissn
0147-006Xissn
1545-4126journal_volume
19pub_type
杂志文章,评审abstract::The topographic assembly of neural circuits is dependent upon the generation of specific neuronal subtypes, each subtype displaying unique properties that direct the formation of selective connections with appropriate target cells. Studies of motor neuron development in the spinal cord have begun to elucidate the mole...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.25.112701.142916
更新日期:2002-01-01 00:00:00
abstract::Neurons and synapses display a rich range of time-dependent processes. Which of these are critical to understanding specific integrative functions in the brain? Computational methods of various kinds are used to understand how systems of neurons interact to produce behavior. However, these models often assume that neu...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.21.1.25
更新日期:1998-01-01 00:00:00
abstract::The mammalian central nervous system (CNS) requires the proper formation of exquisitely precise circuits to function correctly. These neuronal circuits are assembled during development by the formation of synaptic connections between thousands of differentiating neurons. Proper synapse formation during childhood provi...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.29.051605.112830
更新日期:2007-01-01 00:00:00
abstract::The primate retina is an exciting focus in neuroscience, where recent data from molecular genetics, adaptive optics, anatomy, and physiology, together with measures of human visual performance, are converging to provide new insights into the retinal origins of color vision. Trichromatic color vision begins when the im...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.23.1.743
更新日期:2000-01-01 00:00:00
abstract::The isolation and sequencing of a number of G protein-coupled receptors has now provided extensive primary structure information for this family of homologous proteins. The diverse nature of these receptors suggests that the family of proteins may grow to include receptors for many neurotransmitters and perhaps many p...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.ne.12.030189.000435
更新日期:1989-01-01 00:00:00
abstract::The neocortex is found only in mammals, and the fossil record is silent on how this soft tissue evolved. Understanding neocortex evolution thus devolves to a search for candidate homologous neocortex traits in the extant nonmammalian amniotes. The difficulty is that homology is based on similarity, and the six-layered...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-071714-033911
更新日期:2015-07-08 00:00:00
abstract::Scientists in many different fields have been attracted to the study of habits because of the power habits have over behavior and because they invoke a dichotomy between the conscious, voluntary control over behavior, considered the essence of higher-order deliberative behavioral control, and lower-order behavioral co...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.29.051605.112851
更新日期:2008-01-01 00:00:00
abstract::Many ion channels and receptors display striking phenotypes for gain-of-function mutations but milder phenotypes for null mutations. Gain of molecular function can have several mechanistic bases: selectivity changes, gating changes including constitutive activation and slowed inactivation, elimination of a subunit tha...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.23.1.89
更新日期:2000-01-01 00:00:00
abstract::Animal behavior was classically considered to be determined exclusively by neuronal activity, whereas surrounding glial cells such as astrocytes played only supportive roles. However, astrocytes are as numerous as neurons in the mammalian brain, and current findings indicate a chemically based dialog between astrocyte...
journal_title:Annual review of neuroscience
pub_type: 杂志文章
doi:10.1146/annurev-neuro-101920-112225
更新日期:2021-01-06 00:00:00
abstract::The generation of distinct classes of neurons at defined positions within the developing vertebrate nervous system depends on inductive signals provided by local cell groups that act as organizing centers. Genetic and embryological studies have begun to elucidate the processes that control the pattern and identity of ...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.22.1.261
更新日期:1999-01-01 00:00:00
abstract::Cortical interneurons display striking differences in shape, physiology, and other attributes, challenging us to appropriately classify them. We previously suggested that interneuron types should be defined by their role in cortical processing. Here, we revisit the question of how to codify their diversity based upon ...
journal_title:Annual review of neuroscience
pub_type: 杂志文章
doi:10.1146/annurev-neuro-070918-050421
更新日期:2020-07-08 00:00:00
abstract::The Wnt signaling pathway regulates multiple events in development and disease in both vertebrates and invertebrates. Recently, the noncanonical Wnt signaling cascades, those that do not signal through beta-catenin, have gained prominence for their role in the regulation of cellular polarity. It is not surprising that...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.29.051605.112933
更新日期:2006-01-01 00:00:00
abstract::Human studies in the past three decades have provided us with an emerging understanding of how cortical and spinal networks collaborate to ensure the vast repertoire of human behaviors. Humans have direct cortical connections to spinal motoneurons, which bypass spinal interneurons and exert a direct (willful) muscle c...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-070815-013913
更新日期:2016-07-08 00:00:00
abstract::Classical neurotransmitters are synthesized in the cytoplasm, so they require transport into secretory vesicles for regulated exocytotic release. Previous work has identified distinct vesicular transport activities for the different classical transmitters, and all depend on the H+-electrochemical gradient across the v...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.20.1.125
更新日期:1997-01-01 00:00:00
abstract::Maturation of neuronal circuits requires selective elimination of synaptic connections. Although neuron-intrinsic mechanisms are important in this process, it is increasingly recognized that glial cells also play a critical role. Without proper functioning of these cells, the number, morphology, and function of synapt...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-070918-050306
更新日期:2019-07-08 00:00:00
abstract::Synaptic plasticity, the activity-dependent change in neuronal connection strength, has long been considered an important component of learning and memory. Computational and engineering work corroborate the power of learning through the directed adjustment of connection weights. Here we review the fundamental elements...
journal_title:Annual review of neuroscience
pub_type: 杂志文章
doi:10.1146/annurev-neuro-090919-022842
更新日期:2020-07-08 00:00:00
abstract::Supervised learning plays a key role in the operation of many biological and artificial neural networks. Analysis of the computations underlying supervised learning is facilitated by the relatively simple and uniform architecture of the cerebellum, a brain area that supports numerous motor, sensory, and cognitive func...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-080317-061948
更新日期:2018-07-08 00:00:00
abstract::Neurotrophins are a family of growth factors critical for the development and functioning of the nervous system. Although originally identified as neuronal survival factors, neurotrophins elicit many biological effects, ranging from proliferation to synaptic modulation to axonal pathfinding. Recent data indicate that ...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.26.041002.131421
更新日期:2003-01-01 00:00:00
abstract::Proteomic studies of the composition of mammalian synapses have revealed a high degree of complexity. The postsynaptic and presynaptic terminals are molecular systems with highly organized protein networks producing emergent physiological and behavioral properties. The major classes of synapse proteins and their respe...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-062111-150433
更新日期:2012-01-01 00:00:00
abstract::Mammals can discriminate among a large number (> 10,000) of unique odorants. The most highly supported explanation for this ability is that olfactory neurons express a large number of seven transmembrane receptors that are not spatially organized at the level of the olfactory epithelium, but whose axonal projections f...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.23.1.417
更新日期:2000-01-01 00:00:00
abstract::The brain, which represents 2% of body mass but consumes 20% of body energy at rest, has a limited capacity to store energy and is therefore highly dependent on oxygen and glucose supply from the blood stream. Normal functioning of neural circuits thus relies on adequate matching between metabolic needs and blood supp...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-071714-033835
更新日期:2015-07-08 00:00:00
abstract::The tragedy of epilepsy emerges from the combination of its high prevalence, impact upon sufferers and their families, and unpredictability. Childhood epilepsies are frequently severe, presenting in infancy with pharmaco-resistant seizures; are often accompanied by debilitating neuropsychiatric and systemic comorbidit...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-072116-031250
更新日期:2017-07-25 00:00:00
abstract::The central nervous system (CNS) is arguably one of the most complex systems in the universe. To understand the CNS, scientists have investigated a variety of molecules, including proteins, lipids, and various small molecules. However, one large class of molecules, noncoding RNAs (ncRNAs), has been relatively unexplor...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.29.051605.112839
更新日期:2006-01-01 00:00:00
abstract::Magnetic fields pass through tissue undiminished and without producing harmful effects, motivating their use as a wireless, minimally invasive means to control neural activity. Here, we review mechanisms and techniques coupling magnetic fields to changes in electrochemical potentials across neuronal membranes. Biologi...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-070918-050241
更新日期:2019-07-08 00:00:00
abstract::Medications, psychotherapy, and other treatments are effective for many patients with psychiatric disorders. However, with currently available interventions, a substantial number of patients experience incomplete resolution of symptoms, and relapse rates are high. In the search for better treatments, increasing intere...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-061010-113638
更新日期:2011-01-01 00:00:00
abstract::Work with patient H.M., beginning in the 1950s, established key principles about the organization of memory that inspired decades of experimental work. Since H.M., the study of human memory and its disorders has continued to yield new insights and to improve understanding of the structure and organization of memory. H...
journal_title:Annual review of neuroscience
pub_type: 历史文章,杂志文章,评审
doi:10.1146/annurev-neuro-061010-113720
更新日期:2011-01-01 00:00:00
abstract::Parkinson's disease (PD) is a progressive neurodegenerative movement disorder that results primarily from the death of dopaminergic neurons in the substantia nigra. Although the etiology of PD is incompletely understood, the recent discovery of genes associated with rare monogenic forms of the disease, together with e...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev.neuro.28.061604.135718
更新日期:2005-01-01 00:00:00
abstract::Muscarinic signaling affects attention, action selection, learning, and memory through multiple signaling cascades, which act at different timescales and which alter ion channels in cell type-specific manners. The effects of muscarinic signaling differ between cortical layers and between brain areas. Muscarinic signal...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-062012-170433
更新日期:2013-07-08 00:00:00
abstract::One goal of systems neuroscience is a structure-function model of nervous system organization that would allow mechanistic linking of mind, brain, and behavior. A necessary but not sufficient foundation is a connectome, a complete matrix of structural connections between the nodes of a nervous system. Connections betw...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-071714-033954
更新日期:2016-07-08 00:00:00
abstract::Understanding how sensory and motor processes are temporally integrated to control behavior in the hundredths of milliseconds-to-minutes range is a fascinating problem given that the basic electrophysiological properties of neurons operate on a millisecond timescale. Single-unit recording studies in monkeys have ident...
journal_title:Annual review of neuroscience
pub_type: 杂志文章,评审
doi:10.1146/annurev-neuro-062012-170349
更新日期:2013-07-08 00:00:00