Neuronal activity related to anticipated reward in frontal cortex: does it represent value or reflect motivation?

abstract：:Hormones and neuropeptides may influence the activities of lymphoid organs and cells via endocrine and local autocrine/paracrine pathways. A paradigm of the interactions between the neuroendocrine and immune system is sophisticatedly represented in the thymus. Indeed, receptors for these molecules are heterogeneously ...

journal_title：Annals of the New York Academy of Sciences

authors： Ferone D,Boschetti M,Resmini E,Giusti M,Albanese V,Goglia U,Albertelli M,Vera L,Bianchi F,Minuto F

更新日期：2006-06-01 00:00:00

abstract：:Alterations in brain distribution of 11C-MAP, 14C-MAP, and 123I-IMP in MAP- and cocaine-sensitized animals were examined to investigate the mechanism involved in increased dopaminergic transmission and behavioral sensitization. First, a significant increase in 11C-MAP radioactivity in the striatum and hypothalamus was...

journal_title：Annals of the New York Academy of Sciences

authors： Numachi Y,Yoshida S,Inosaka T,Sato M,Mizugaki M,Kimura K,Hishinuma T

更新日期：1992-06-28 00:00:00

abstract：:The autonomic nervous system consists of sympathetic, parasympathetic, and enteric ganglia and also of a specialized neuroendocrine derivative, the adrenomedullary chromaffin cells. ...

journal_title：Annals of the New York Academy of Sciences

authors： Kalcheim C,Langley K,Unsicker K

更新日期：2002-10-01 00:00:00

abstract：:A meta-analysis of 14 clinical studies with RRR- or all-rac-alpha-tocopherol (83,800 subjects) was performed to evaluate whether RRR and all-rac differ in cardiovascular efficacy based on those clinical endpoints that are most consistently documented in the publications of the studies. Odds ratios of treatment versus ...

journal_title：Annals of the New York Academy of Sciences

authors： Kraemer K,Koch W,Hoppe PP

更新日期：2004-12-01 00:00:00

abstract：:Our studies to date indicate that treatment with anti-idiotype to monoclonal anti-MHC antibodies can markedly influence the repertoire of anti-MHC antibodies expressed. The antibodies discussed here appear to represent two classes, one of which is public, probably representing expression of a germ line gene, and the s...

journal_title：Annals of the New York Academy of Sciences

authors： Sachs DH,Bluestone JA,Epstein SL,Rabinowitz R

更新日期：1983-01-01 00:00:00

abstract：:We have used site-directed mutagenesis to investigate the contributions of widely distributed residues in the thymosin beta-4 (Tbeta4) sequence to the formation and stability of the actin-Tbeta4 complex. Equilibrium and kinetic studies of actin binding were performed by monitoring the change in fluorescence of an N-io...

journal_title：Annals of the New York Academy of Sciences

authors： Au JK,De La Cruz EM,Safer D

更新日期：2007-09-01 00:00:00

abstract：:The 1,4-dihydropyridine-sensitive voltage-gated Ca2+ channel is widely distributed in excitable cells. The channel and its several associated drug binding sites are known to be up- and downregulated by a variety of homologous and heterologous influences including membrane depolarization. The neurosecretory GH4C1 cell ...

journal_title：Annals of the New York Academy of Sciences

authors： Liu J,Rutledge A,Triggle DJ

更新日期：1995-09-15 00:00:00

abstract：:Every year thousands of young teenagers are afflicted with different types of cancer and receive gonadotoxic chemotherapy and radiotherapy regimens, causing depletion of germ cells in the gonads and premature gonadal failure. In this review, we discuss and outline the current strategies and the future directions of fe...

journal_title：Annals of the New York Academy of Sciences

authors： Oktem O,Oktay K

更新日期：2008-01-01 00:00:00

abstract：:We have studied the conductance of molecular films as a function of orientation of the molecules in the film with respect to electrodes. Depending on the angle between the axis of the molecules and the normal to the electrode, the conductance may change by more than an order of magnitude. This is a consequence of the ...

journal_title：Annals of the New York Academy of Sciences

authors： Kornilovitch PE,Bratkovsky AM

更新日期：2002-04-01 00:00:00

abstract：:Rewards can be viewed as probability distributions of reward values. Besides expected (mean) value, a key parameter of such distributions is variance (or standard deviation), which constitutes a measure of risk. Single neurons in orbitofrontal cortex signal risk mostly separately from value. Comparable risk signals in...

journal_title：Annals of the New York Academy of Sciences

authors： Schultz W,O'Neill M,Tobler PN,Kobayashi S

更新日期：2011-12-01 00:00:00

abstract：:In this paper a novel algorithm is proposed for space trajectory design that combines a systematic and a heuristic method for global optimization. For the systematic part of the algorithm a branching technique is used, whereas a particular implementation of evolution programming forms the core of the heuristic part. T...

journal_title：Annals of the New York Academy of Sciences

authors： Vasile M

更新日期：2004-05-01 00:00:00

abstract：:Systemic administration of 5,7-HT to newborn rats produces an altered development of the 5-HT neurons in the central nervous system, with marked regional differences. 5,7-Hydroxytryptamine can enter the brain and elicit its neurotoxic actions after systemic administration in the neonatal stage due to an incompletely d...

journal_title：Annals of the New York Academy of Sciences

authors： Jonsson G,Pollare T,Hallman H,Sachs C

更新日期：1978-06-12 00:00:00

abstract：:Intracellular foreign protein (beta-galactosidase) expression in recombinant CHO cell lines in continuous culture was analyzed by developing a mathematical model that includes the effects of metabolic burden and cell cycle dependence of intracellular foreign protein expression. This combined growth kinetic and cell cy...

journal_title：Annals of the New York Academy of Sciences

authors： Gu MB,Todd P,Kompala DS

更新日期：1994-05-02 00:00:00

abstract：:The airway disease termed asthma has been recognized for centuries but is now receiving increased attention because of chronicity, high incidence in the population and rising mortality rate. Asthma is now recognized as a disease of unknown etiology characterized by a hyperactive airway which can be demonstrated by res...

journal_title：Annals of the New York Academy of Sciences

authors： Patterson R,Greenberger PA

更新日期：1991-01-01 00:00:00

abstract：:The gastrointestinal tract (GIT) appears to be the main site of entry for the pathological isoform of prions (PrP(sc)). To understand how the PrP(sc) internalization process occurs, it is important to characterize the cell types that express normal prion protein (PrP(c)) along the GIT. To do so, we studied the distrib...

journal_title：Annals of the New York Academy of Sciences

authors： Marcos Z,Bodegas ME,Sesma MP,Guembe L

更新日期：2005-04-01 00:00:00

abstract：:Copper is an important cofactor in numerous biological processes in all living organisms. However, excessive copper can be extremely toxic, so it is vital that the copper level within a cell is tightly regulated. The damaging effect of copper is seen in several hereditary forms of copper toxicity in humans and animals...

journal_title：Annals of the New York Academy of Sciences

authors： Fedoseienko A,Bartuzi P,van de Sluis B

更新日期：2014-05-01 00:00:00

abstract：:Type II topoisomerases are essential enzymes that modulate DNA under- and overwinding, knotting, and tangling. Beyond their critical physiological functions, these enzymes are the targets for some of the most widely prescribed anticancer drugs (topoisomerase II poisons) in clinical use. Topoisomerase II poisons kill c...

journal_title：Annals of the New York Academy of Sciences

authors： Pendleton M,Lindsey RH Jr,Felix CA,Grimwade D,Osheroff N

更新日期：2014-03-01 00:00:00

abstract：:Carnitine and its congeners may regulate the immune networks, and their influence on functions of immune cells predominantly or exclusively relies on carnitine-dependent energy production from fatty acids. A reduced pool of carnitines has been demonstrated in either serum or tissues, or both, from patients with a wide...

journal_title：Annals of the New York Academy of Sciences

authors： Famularo G,De Simone C,Trinchieri V,Mosca L

更新日期：2004-11-01 00:00:00

abstract：:The term intrauterine growth restriction (IUGR) is assigned to newborns with a birth weight and/or birth length below the 10th percentile for their gestational age and whose abdominal circumference is below the 2.5th percentile with pathologic restriction of fetal growth. IUGR is usually due to maternal, fetal, or pla...

journal_title：Annals of the New York Academy of Sciences

authors： Valsamakis G,Kanaka-Gantenbein C,Malamitsi-Puchner A,Mastorakos G

更新日期：2006-12-01 00:00:00

abstract：:(1) Vitamin D is the precursor of an extremely potent calcium regulating hormone, 1,25(OH)2D3, which is secreted by the kidney. (2) The secretion of 1,25(OH)2D3 by the kidney is influenced by the calcium and phosphorus content of the diet, parathyroid hormone, and 1,25(OH)2D3 itself. (3)Prolactin and growth hormone ar...

journal_title：Annals of the New York Academy of Sciences

authors： MacIntyre I,Colston KW,Szelke M,Spanos E

更新日期：1978-04-28 00:00:00

abstract：:Altered calcium homeostasis may play a key role in the pathophysiology of human heart failure. Levels of sarcoplasmic reticulum (SR) proteins and sarcolemmal Na(+)-Ca2+ exchanger were analyzed by Western blot in failing and nonfailing human myocardium and related to myocardial function. Levels of the SR calcium releas...

journal_title：Annals of the New York Academy of Sciences

authors： Lehnart SE,Schillinger W,Pieske B,Prestle J,Just H,Hasenfuss G

更新日期：1998-09-16 00:00:00

abstract：:One of the most striking changes in the primary lymphoid organs during human aging is the progressive involution of the thymus. As a consequence, the rate of naïve T cell output dramatically declines with age and the peripheral T cell pool shrinks. These changes lead to increased incidence of severe infections and dec...

journal_title：Annals of the New York Academy of Sciences

authors： Pfister G,Weiskopf D,Lazuardi L,Kovaiou RD,Cioca DP,Keller M,Lorbeg B,Parson W,Grubeck-Loebenstein B

更新日期：2006-05-01 00:00:00

abstract：:As recently as ten years ago, the nature of the T-cell receptor for antigen was a mystery, as was the precise role of histocompatibility molecules in antigen-presentation to T cells. Although T-cell receptors have now been cloned and crystal structures of MHC/peptide molecules exist, our understanding of the parameter...

journal_title：Annals of the New York Academy of Sciences

authors： Boniface JJ,Davis MM

更新日期：1995-09-07 00:00:00

abstract：:Analysis of fetal DNA in maternal plasma has recently been introduced as a new method for noninvasive prenatal diagnosis. In the majority of cases, the Y chromosome-specific sequences are commonly used as a fetus-specific marker with a high risk of false-negative cases. We attempted to develop a sensitive and reliable...

journal_title：Annals of the New York Academy of Sciences

authors： Vecchione G,Tomaiuolo M,Sarno M,Colaizzo D,Petraroli R,Matteo M,Greco P,Grandone E,Margaglione M

更新日期：2008-08-01 00:00:00

abstract：:This paper analyzes the effect of low amplitude friction and noise in accelerating phase space transport in time-independent Hamiltonian systems that exhibit global stochasticity. Numerical experiments reveal that even very weak non-Hamiltonian perturbations can dramatically increase the rate at which an ensemble of o...

journal_title：Annals of the New York Academy of Sciences

authors： Kandrup HE

更新日期：1998-12-30 00:00:00

abstract：:Kinetics of extracellular RNA accumulation in culture medium and at the cell surface along with their composition and distribution among cell-free and cell-surface-bound fractions were investigated in mycoplasma-contaminated and mycoplasma-free HeLa cells. It was shown that the mycoplasma infection influenced the conc...

journal_title：Annals of the New York Academy of Sciences

authors： Morozkin ES,Rykova EY,Vlassov VV,Laktionov PP

更新日期：2006-09-01 00:00:00

abstract：:CDP-choline was given to patients with Alzheimer's disease (AD) at a daily dose of 1000 mg/day p.o. for one month. This compound slightly improved mental performance, tended to reduce theta activity in fronto-temporal regions, increasing alpha power in occipital areas, and enhanced cerebrovascular perfusion by increas...

journal_title：Annals of the New York Academy of Sciences

authors： Cacabelos R,Caamaño J,Gómez MJ,Fernández-Novoa L,Franco-Maside A,Alvarez XA

更新日期：1996-01-17 00:00:00

abstract：:Jackson's Personality Research Form E (PRF) was administered to a large, heterogeneous group of adult inpatients with diagnoses of alcohol and/or drug dependence. Cluster analysis of PRF factor scores yielded five distinct patient subtypes: hostile-dependent, cooperative-nonreflective, socially uninvolved, impulsive-u...

journal_title：Annals of the New York Academy of Sciences

authors： Allen JP,Fertig JB,Mattson ME

更新日期：1994-02-28 00:00:00

abstract：:There are two types of escapes in conservative dynamical systems with two degrees of freedom: escapes to infinity and escapes to certain singular points at a finite distance. In both cases the areas on a surface of section are not preserved. We consider the basins of escape to infinity in simple Hamiltonian systems. T...

journal_title：Annals of the New York Academy of Sciences

authors： Contopoulos G,Harsoula M

更新日期：2005-06-01 00:00:00

abstract：:A diverse array of organisms live longer under dietary restriction. Here, a hypothesis is proposed as a framework for interpreting this phenomenon. Dietary restriction is explained in terms of evolution and antagonistic pleiotropy. Focusing on the decline in reproductive capacity seen in dietary restriction, it is sub...

journal_title：Annals of the New York Academy of Sciences

authors： Koochmeshgi J

更新日期：2004-06-01 00:00:00