abstract：:Developing axons appear to navigate to their targets partly in response to long-range diffusible chemoattractants secreted by target cells. The past year has seen the identification of the first target-derived attractants for developing axons, the netrins. Target-derived diffusible factors have also been implicated in...

journal_title：Current opinion in neurobiology

authors： Kennedy TE,Tessier-Lavigne M

更新日期：1995-02-01 00:00:00

abstract：:Previously, eye positions were characterized by the direction of sight, which has two degrees of freedom for conjugate movements and three degrees of freedom for vergent movements. Several groups have recently presented reliable data and unconventional models on binocular coordination, where all three degrees of freed...

journal_title：Current opinion in neurobiology

authors： Hepp K

更新日期：1994-12-01 00:00:00

abstract：:Recent advances in the identification of factors that inhibit axon extension lead us to suggest that there exist at least two functionally distinct categories of inhibitory factors: those that inhibit the motile apparatus of the growth cone, and those that destabilize interactions of the growth cone with the substratu...

journal_title：Current opinion in neurobiology

authors： Luo Y,Raper JA

更新日期：1994-10-01 00:00:00

abstract：:The use of gene transfer techniques to express novel proteins within different cellular populations has provided insights into the function and plasticity of the brain. Recently, this technique has been successfully used to explore physiological processes within the CNS and to intervene in neurodegenerative disease an...

journal_title：Current opinion in neurobiology

authors： Fisher LJ,Ray J

更新日期：1994-10-01 00:00:00

abstract：:Recent experiments on the retina have examined the effectiveness of various factors (e.g. growth factors, neurotrophins and cytokines) for enhancing survival and reducing injury of retinal neurons, such as photoreceptors and ganglion cells, whose death leads to blindness in degenerative retinal diseases. It has also b...

journal_title：Current opinion in neurobiology

authors： Steinberg RH

更新日期：1994-08-01 00:00:00

abstract：:In the past year, our knowledge of neurotransmitter transporters has increased significantly. Recently, new members of two families of plasma membrane uptake carriers have been cloned, and the stoichiometries, physiological function and mechanisms of modulation of some of these transporters are now better understood. ...

journal_title：Current opinion in neurobiology

authors： Attwell D,Mobbs P

更新日期：1994-06-01 00:00:00

abstract：:Perception, action, cognition, and emotion can now be mapped in the brain by a growing family of techniques. Positron emission tomography, functional magnetic resonance imaging, event-related electrical potentials, event-related magnetic fields, and other non-invasive imaging techniques are rapidly evolving and provid...

journal_title：Current opinion in neurobiology

authors： Fox PT,Woldorff MG

更新日期：1994-04-01 00:00:00

abstract：:Recent behavioral studies of infants have provided further evidence for the existence of cognitive and perceptual abilities in the first few months of life. Additional evidence from developmental neuroscience and comparative psychology has supported the view that, in some domains, such as visual attention and face and...

journal_title：Current opinion in neurobiology

authors： Johnson MH

更新日期：1994-04-01 00:00:00

abstract：:Recent advances in neural and behavioural pharmacology, and in intracellular recording suggest that arousal during the awake state may be regulated by multiple, interdependent neurotransmitter systems that originate in the brainstem or hypothalamus, and project to subcortical and cortical sites. We discuss efforts to ...

journal_title：Current opinion in neurobiology

authors： Marrocco RT,Witte EA,Davidson MC

更新日期：1994-04-01 00:00:00

abstract：:Cell-cell communication directs the development of photoreceptor cells in the Drosophila retina. A recent set of studies has provided a genetic dissection of one of these interactions, the induction of the R7 photoreceptor cell by the neighboring R8 photoreceptor cell. The results from these experiments shape our unde...

journal_title：Current opinion in neurobiology

authors： Krämer H,Cagan RL

更新日期：1994-02-01 00:00:00

abstract：:During the past year,several model systems have been developed to identify cellular and biochemical events involved in neuronal cell death, to investigate the role of bcl-2 in cell survival, and to characterize the relationship between cell death and the cell cycle. ...

journal_title：Current opinion in neurobiology

authors： Pittman RN,Mills JC,DiBenedetto AJ,Hynicka WP,Wang S

更新日期：1994-02-01 00:00:00

abstract：:Work during the past year has revealed increasing diversity and complexity of sensory inputs that trigger behavior, and correspondingly wide-ranging adaptations of sensory receptors and receptor organs. Many of these have been discovered by taking careful account of the animal in its natural habitat. Studies on centra...

journal_title：Current opinion in neurobiology

authors： Camhi JM

更新日期：1993-12-01 00:00:00

abstract：:A critical review of the role of the cerebellum in motor learning is presented. Specifically, the hypothesis that the climbing fibers that issue from the inferior olive serve to modify the responsiveness of cerebellar Purkinje cells is evaluated. It is concluded that there is no convincing evidence, at this time, to s...

journal_title：Current opinion in neurobiology

authors： Llinás R,Welsh JP

更新日期：1993-12-01 00:00:00

abstract：:Proteoglycans are ubiquitous cell-surface and secreted glycoproteins that are involved in diverse cellular behaviors. The identities of several nervous system proteoglycans, including many of the major species in the mammalian brain, have recently come to light. In addition, recent studies have given new insights into...

journal_title：Current opinion in neurobiology

authors： Lander AD

更新日期：1993-10-01 00:00:00

abstract：:This article reviews recent evidence suggesting that endogenous ciliary neurotrophic factor may be involved in neural responses to injury, and discusses the possibility that ciliary neurotrophic factor could have therapeutic applications in a clinical setting. The functional relevance of ciliary neurotrophic factor in...

journal_title：Current opinion in neurobiology

authors： Adler R

更新日期：1993-10-01 00:00:00

abstract：:The term imprinting is used to refer to biologically relevant learning during a sensitive period defined by a particular developmental stage or physiological state. Although olfactory imprinting may occur at any age, and some of the best-studied paradigms involve adult animals, recent reports of long-term memory for o...

journal_title：Current opinion in neurobiology

authors： Hudson R

更新日期：1993-08-01 00:00:00

abstract：:Central core (brainstem, diencephalic and basal forebrain) systems influence the functional modes of thalamic and cortical neurons during behavioral states of vigilance. Recent studies in vivo and in vitro have focused on the cellular properties of central core systems and their modulation of slow sleep oscillations, ...

journal_title：Current opinion in neurobiology

authors： Steriade M

更新日期：1993-08-01 00:00:00

abstract：:The recent application of molecular biological techniques to taste cells has led to the identification and cloning of a number of proteins that are involved in signal transduction. Some of these are expressed only in taste cells, whereas others are expressed at higher levels in taste cells than in other, non-sensory l...

journal_title：Current opinion in neurobiology

authors： Margolskee RF

更新日期：1993-08-01 00:00:00

abstract：:Cerebellar long-term depression is a persistent, input-specific attenuation of the parallel fiber-Purkinje neuron synapse induced by co-activation of parallel fibers and climbing fibers. This phenomenon endows the Purkinje neuron with a powerful associative computational ability. Recent investigations have provided st...

journal_title：Current opinion in neurobiology

authors： Linden DJ,Connor JA

更新日期：1993-06-01 00:00:00

abstract：:Molecular mechanisms involved in the various stages of transmitter secretion have been studied by perturbing the composition of secretory cells using pharmacological and biochemical agents. An emerging approach is to reconstitute individual steps or the entire sequence of secretion mechanisms in non-secretory cells by...

journal_title：Current opinion in neurobiology

authors： Alder J,Poo MM

更新日期：1993-06-01 00:00:00

abstract：:The hippocampal formation has a unique and highly distributed network of intrinsic connections. What are the principles of organization that govern information flow through this system? The notion that information processing in the hippocampal formation is segregated in autonomous chips or lamellae appears to be incon...

journal_title：Current opinion in neurobiology

authors： Amaral DG

更新日期：1993-04-01 00:00:00

abstract：:Recent findings suggest that cerebral laterality will not be understood in terms of simple dichotomies, such as the idea that the left hemisphere is analytic and the right holistic. Rather, hemisphere differences can be better explained in terms of relatively specific principles that extend over limited domains. For v...

journal_title：Current opinion in neurobiology

authors： Brown HD,Kosslyn SM

更新日期：1993-04-01 00:00:00

abstract：:The Drosophila visual system offers an excellent opportunity for studying the development of proper retinotopic connections at the level of individual identifiable cell types. Recent work suggests that, despite obvious anatomical and developmental differences, at least some of the general developmental strategies oper...

journal_title：Current opinion in neurobiology

authors： Kunes S,Steller H

更新日期：1993-02-01 00:00:00

abstract：:Neuropeptide Y is an important regulator of energy intake and expenditure. The central portion of this regulatory system appears to reside in the arcuate nucleus/paraventricular nucleus of the hypothalamus. The effects of neuropeptide Y on energy metabolism include increased food intake, decreased thermogenesis and in...

journal_title：Current opinion in neurobiology

authors： Billington CJ,Levine AS

更新日期：1992-12-01 00:00:00

abstract：:Prions cause transmissible and genetic neurodegenerative diseases. Infectious prion particles are composed largely, if not entirely, of an abnormal isoform of the prion protein (PrPSc), which is encoded by a chromosomal gene. Although the PrP gene is single copy, transgenic mice with both alleles of the PrP gene ablat...

journal_title：Current opinion in neurobiology

authors： Prusiner SB

更新日期：1992-10-01 00:00:00

abstract：:The primary reactions of the chemo-electrical signal transduction pathway in olfactory receptor neurons are mediated by two alternative second messengers, cAMP and inositol 1,4,5-trisphosphate. The rapid and transient intracellular signalling is terminated by the action of negative-feedback loops which uncouple the re...

journal_title：Current opinion in neurobiology

authors： Breer H,Boekhoff I

更新日期：1992-08-01 00:00:00

abstract：:The idea that visual signals relayed by the parvocellular and magnocellular subdivisions of the lateral geniculate nucleus remain segregated in the cerebral cortex has attracted considerable attention. It has been proposed that parvocellular contributions dominate in the temporal visual cortex, and that magnocellular ...

journal_title：Current opinion in neurobiology

authors： Maunsell JH

更新日期：1992-08-01 00:00:00

abstract：:A novel multigene family has been identified that is likely to encode odorant receptors on olfactory sensory neurons. Further studies on this gene family are likely to shed light on the molecular mechanisms underlying information coding in the mammalian olfactory system. This review is also published in Current Opinio...

journal_title：Current opinion in neurobiology

authors： Buck LB

更新日期：1992-06-01 00:00:00

abstract：:In the past year significant advances have been made in our understanding of the role of protein dephosphorylation in the control of neuronal function. Molecular cloning has identified a large number of serine/threonine and tyrosine protein phosphatases in the nervous system. Many of these enzymes are selectively enri...

journal_title：Current opinion in neurobiology

authors： Nairn AC,Shenolikar S

更新日期：1992-06-01 00:00:00

abstract：:Recent developments have led to a greater insight into the complex processes of perception of visual motion. A better understanding of the neuronal circuitry involved and advances in electrophysiological techniques have allowed researchers to alter the perception of an animal with a stimulating electrode. In addition,...

journal_title：Current opinion in neurobiology

authors： Snowden RJ

更新日期：1992-04-01 00:00:00

abstract：:Recent work on the retinotectal projection clearly establishes the roles of neuronal activity and position-based cues in the patterning of nerve connections. In some species, the high degree of spatial order has been shown to emerge from a continued process of terminal growth and refinement. The future challenge is no...

journal_title：Current opinion in neurobiology

authors： Fraser SE

更新日期：1992-02-01 00:00:00

abstract：:Recent studies have provided a significant advance in our understanding of motor axon pathfinding. In particular, sources of guidance cues and some of the mechanisms used by motor growth cones during pathfinding have been identified. ...

journal_title：Current opinion in neurobiology

authors： Westerfield M

更新日期：1992-02-01 00:00:00

abstract：:Sensory gating mechanisms are deployed during vertebrate locomotion to ensure that adaptive and appropriate motor responses to afferent input occur during all phases of the movement cycle. Recent animal studies on the integration of cutaneous information have investigated the roles of interneurones in sensory gating. ...

journal_title：Current opinion in neurobiology

authors： Sillar KT

更新日期：1991-12-01 00:00:00

abstract：:The basal ganglia, with their inhibitory efferents, control motor outputs either directly by their projections to the midbrain motor regions or indirectly through the thalamic nuclei. Neural mechanisms in the basal ganglia act selectively to remove or enhance the inhibition so that different combinations of motor sign...

journal_title：Current opinion in neurobiology

authors： Hikosaka O

更新日期：1991-12-01 00:00:00

abstract：:A diverse group of biochemically distinct proteins give rise to amyloids, each of which is associated with a different disease. These amyloid proteins share numerous properties and typically arise from the abnormal processing of an amyloid precursor protein. The classification, mechanisms and biochemistry of amyloid f...

journal_title：Current opinion in neurobiology

authors： Castaño EM,Wisniewski T,Frangione B

更新日期：1991-10-01 00:00:00

abstract：:The molecular cloning of components involved in the cAMP second messenger cascade has allowed their biochemical characterization and revealed properties that are important for their role in sensory transduction. Recent evidence suggests inositol 1,4,5-trisphosphate functions as an additional second messenger in olfact...

journal_title：Current opinion in neurobiology

authors： Bakalyar HA,Reed RR

更新日期：1991-08-01 00:00:00

abstract：:The recent cloning of the gamma-aminobutyric acid and norepinephrine Na(+)-dependent neurotransmitter transporters has led to new approaches for understanding the structure and function of these important synaptic proteins and provides a conceptual model in which to consider recent advances in the physiology, pharmaco...

journal_title：Current opinion in neurobiology

authors： Amara SG,Pacholczyk T

更新日期：1991-06-01 00:00:00

abstract：:Neurons have a multiplicity of ionic conductance mechanisms, the interactions of which determine in part the response of a neuron to chemical and electrical synaptic interactions, firing patterns, excitability, membrane potential and action-potential waveform. Several papers published in the past year have provided im...

journal_title：Current opinion in neurobiology

authors： Baxter DA,Byrne JH

更新日期：1991-06-01 00:00:00