Abstract:
:It is known that 5HTR2A (rs6311) receptors have high concentration in the cortical layer-5 pyramidal neurons and that these receptors play an important role in the modulation of neurocognitive functions. For example, layer-5 pyramidal neurons mediate cellular level integrative interaction of primary sensory afferent signals and top-down signals exerting contextual modulatory influence. It is also known that genetic variability of 5HTR2A is implicated in individual differences in mental processes. Interestingly, serotonin selectively enhances the asynchronous type of glutamate release when modulating the activity of cortical layer-5 pyramidal neurons, with a post-stimulation delay of this effect at about 50 ms. There are not many behavioral tasks capable of tapping that small temporal intervals in terms of change of the values of independent variables leading to an observable change in the subjects' behavior. However, in the metacontrast masking vision task stimulus onset asynchronies between target and mask critical for the change in the expression of the masking effect correspond to this small temporal value. Thus we hypothesized that genetic variability in 5HTR2A (rs6311) is likely to be associated with different behavioral effects of metacontrast masking and more specifically, that because A allele carriers typically demonstrate greater promoter activity, target-to-mask asynchrony variations should have stronger impact on the masking effect especially with this group of subjects. We obtained support for this hypothesis, but only when target and mask shapes were mutually incongruent.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Maksimov M,Vaht M,Harro J,Bachmann Tdoi
10.1016/j.neulet.2014.10.015subject
Has Abstractpub_date
2015-01-01 00:00:00pages
129-34eissn
0304-3940issn
1872-7972pii
S0304-3940(14)00819-2journal_volume
584pub_type
杂志文章abstract::Spasticity in chronic hemiparetic stroke patients has primarily been treated pharmacologically. However, there is increasing evidence that physical rehabilitation can help manage hyper-excitability of reflexes (hyperreflexia), which is a primary contributor to spasticity. In the present study, one chronic hemiparetic ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2011.09.009
更新日期:2011-10-24 00:00:00
abstract::Female Fischer 344 (F344) rats were tested for age-related differences in both cerebellar beta-adrenergic receptor activation and motor learning. Three and 20 month old rats were tested on a motor learning paradigm that required the rats to adjust their gait to navigate a runway of unevenly spaced pegs. Rates of acqui...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(96)13007-x
更新日期:1996-09-20 00:00:00
abstract::Guanidine, the active ingredient extracted from Galega officinalis, is introduced as a ligand for imidazoline I2 receptor (I2R) because guanidine decreased plasma glucose via an activation of I2BR to increase glucose uptake into skeletal muscle isolated from Wistar rats. However, the signals for this action of guanidi...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2010.03.024
更新日期:2010-05-03 00:00:00
abstract::Using in situ hybridization, the mRNA levels encoding neuropeptide Y (NPY) was investigated in the arcuate nucleus (ARC) of jerboas under three different states of energy balance. (1) normally feeding animals, (2) hibernating animals and finally (3) animals food deprived for 5 days. The hibernating and food deprived j...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)01825-0
更新日期:2001-06-08 00:00:00
abstract::The study investigates time-variant directed interactions between brain regions during the interburst-burst EEG pattern (tracé alternant) characteristic of quiet sleep in healthy neonates. The transition from interburst to burst is of particular interest as the generation of the EEG characteristics at burst onset refl...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2010.11.018
更新日期:2011-01-20 00:00:00
abstract::Activated microglia surround degenerating substantia nigra neurons in Parkinson's disease (PD). Such microglia produce high levels of interleukin-1 beta (IL-1 beta) and interleukin-1 alpha (IL-1 alpha). T and C alleles exist for the IL-1 beta-511 regulatory region as well as for the IL-1 alpha-889 regulatory region. T...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(02)00300-2
更新日期:2002-06-21 00:00:00
abstract::Recent discovery of pathogenic mutations in the leucine-rich repeat kinase 2 (LRRK2) gene in Parkinson's disease (PD) patients in different ethnic groups have raised a hope of diagnostic screening and genetic counseling. We investigated the six most commonly reported mutations in LRRK2 gene among Indian PD patients, u...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2006.04.052
更新日期:2006-12-01 00:00:00
abstract::While it has been shown that the Global Optic Flow Rate (GOFR) is used in the control of self-motion speed, this study examined its relevance in the control of interceptive actions while walking. We asked participants to intercept approaching targets by adjusting their walking speed in a virtual environment, and predi...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2014.02.030
更新日期:2014-04-30 00:00:00
abstract::We hypothesized that neuropeptides released from the peripheral terminals of primary afferents play an important role in mechanical hyperalgesia after peripheral nerve injury. Nerve injury was performed on rats with lumbar 5 spinal nerve lesion (L5 SNL), which was preceded by L5 dorsal rhizotomy (L5 DR) to avoid the p...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2004.02.043
更新日期:2004-04-29 00:00:00
abstract::Imagining a familiar environment is different from imagining an environmental map and clinical evidence demonstrated the existence of double dissociations in brain-damaged patients due to the contents of mental images. Here, we assessed a large sample of young and old participants by considering their ability to gener...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2015.06.058
更新日期:2015-08-18 00:00:00
abstract::Synaptic plasticity in olfactory inputs to the lateral entorhinal cortex may result in lasting changes in the processing of olfactory stimuli. Changes in dopaminergic tone can have strong effects on basal evoked synaptic responses in the superficial layers of the entorhinal cortex, and the current study investigated w...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2007.08.025
更新日期:2007-10-09 00:00:00
abstract::Pharmacologic blockade of excitatory amino acid receptors, especially the N-methyl-D-aspartate-preferring subclass of glutamate receptors, has been shown to reduce neuronal damage in models of global cerebral ischemia followed by reperfusion. The pharmacologic blockade at the NMDA receptor attenuates infarct size foll...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(89)90322-4
更新日期:1989-09-25 00:00:00
abstract::The morphology of single saccular afferents was studied by the intracellular horseradish peroxidase (HRP) method. Four neurons were sufficiently stained to allow reconstruction of their axonal arborizations. The main axon of these neurons bifurcated into an ascending and a descending branch at the level of the lateral...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00944-0
更新日期:1998-01-16 00:00:00
abstract::Extracellular noradrenaline was measured on-line in the cerebral cortex of the freely moving rat by microdialysis coupled to high performance liquid chromatography and electrochemical detection. High potassium concentrations in the perfusion fluid led to a strong increase, whereas tetrodotoxin led to almost undetectab...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(90)90841-v
更新日期:1990-11-13 00:00:00
abstract::The effects of glutamate, glutamate receptor agonists and substances that affect glutamate responses were studied, using the whole-cell patch-clamp technique, on neurons isolated from adult rat dorsal root ganglia. In current-clamp, glutamate (100 microM) or the excitatory amino acid receptor agonist N-methyl-D-aspart...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(88)90037-7
更新日期:1988-12-05 00:00:00
abstract::Exposure to negative environmental events triggers defensive behavior and leads to the formation of aversive associative memory. Cellular and molecular changes in the central nervous system underlie this memory formation, as well as the associated behavioral changes. In general, memory process is established in distin...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2016.06.020
更新日期:2016-08-15 00:00:00
abstract::The effect of partial isomerization of dietary alpha-linolenic acid on the monoaminergic neurotransmitters in piglets was studied. After feeding the animals for 14 days with diets containing or not trans alpha-linolenic acid, neurotransmitters related to the monoaminergic function were quantified in the frontal cortex...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(02)00879-0
更新日期:2002-10-18 00:00:00
abstract::Insulin-like growth factor binding protein (IGFBP) 7 may be a critical regulator of memory consolidation. This study was performed to assess the relationship between circulating IGFBP7 levels and postoperative cognition dysfunction (POCD) in patients scheduled for elective head and neck carcinoma surgery under general...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2014.12.046
更新日期:2015-02-19 00:00:00
abstract:BACKGROUND:Studies have demonstrated that the failure of oligodendrocyte precursor cells (OPCs) differentiation as a major cause of remyelination failure in demyelinating disease. The reasons for this failure are not completely understood. We hypothesized that the present of myelin debris in CNS play an important role ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2020.134872
更新日期:2020-04-23 00:00:00
abstract::The human visual system is divided into two pathways specialized for the processing of either objects or spatial locations. Neuroanatomical studies in monkeys have suggested that a similar specialization may also divide auditory cortex into two such pathways. We used the identical stimulus material in two experimental...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(02)01063-7
更新日期:2002-12-06 00:00:00
abstract::Activation of serotonin (5-hydroxytryptamine, 5-HT) receptors produces various autonomic and neuroendocrine responses in the hypothalamic paraventricular nucleus (PVN), including increased blood pressure and heart rate. However, the role(s) of 5-HT on the local GABA synaptic circuit have not been well understood in th...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2008.05.012
更新日期:2008-07-11 00:00:00
abstract::The effects of geomagnetic disturbances on urinary excretion of the melatonin metabolite, 6-hydroxymelatonin sulfate (6-OHMS), were studied in conjunction with 60 Hz magnetic field (MF) and ambient light exposure in 132 electric utility workers. Geomagnetic activity was assessed using a local (equivalent amplitude or ...
journal_title:Neuroscience letters
pub_type: 临床试验,杂志文章
doi:10.1016/s0304-3940(99)00308-0
更新日期:1999-05-14 00:00:00
abstract::The amino acid content of Torpedo synaptosomes was investigated. It was found that glutamate and taurine were particularly enriched, their concentration exceeding that of acetylcholine by 50-60%. Other amino acids such as alanine, gamma-aminobutyric acid (GABA), glycine, leucine and phenylalanine were also present, bu...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(87)90171-6
更新日期:1987-11-10 00:00:00
abstract::Seizures in genetically epilepsy-prone rats (GEPRs) may result from hypoactivity of locus coeruleus (LC) neurons during seizures. This study examined Fos-like-immunoreactivity (FLI) in the LC following audiogenic seizures in two strains of GEPRs (GEPR-9s and -3s), and following pentylenetetrazol (PTZ) or maximal elect...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00611-3
更新日期:1997-09-12 00:00:00
abstract::It is generally assumed that the majority of substance P (SP)-containing afferents are also immunoreactive for calcitonin gene-related peptide (CGRP). In order to determine whether this is also the case in articular afferents where the contents of these peptides are low, we carried out a double labeling study using Fa...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(98)00660-0
更新日期:1998-09-18 00:00:00
abstract::Depression is among the leading causes of disability and disease burden. Recent studies point to an involvement of altered serotonin1A receptor (5-HT1AR) -mediated adult neurogenesis in depression. However, the exact underlying mechanisms remain unclear, mainly due to the complexity of the serotonergic system with its...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2016.09.051
更新日期:2016-10-28 00:00:00
abstract::A growing body of evidence suggests that Alzheimer's disease (AD) is associated with local inflammation processes. Complement activation is one of the cardinal pathological features of the inflammation. Intensive AD association studies investigating polymorphisms in inflammatory-related genes have been recently perfor...
journal_title:Neuroscience letters
pub_type: 临床试验,杂志文章
doi:10.1016/s0304-3940(02)01218-1
更新日期:2003-01-16 00:00:00
abstract::Any given region of the cerebral cortex gets multiple inputs, and how these inputs are combined or selected is a key component of cortical function. Experiments in brain slices or other reduced preparations have shown that excitatory inputs to cortex produce a delayed feed-forward inhibition, which suggests that the r...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2008.02.036
更新日期:2008-04-25 00:00:00
abstract:BACKGROUND:Animal and neuroimaging studies suggest that the volume of the motor-circuit region decreases in tardive dyskinesia (TD). This study examined the differences in functional connectivity within the motor circuit of patients with schizophrenia with and without TD to further clarify how the dysfunction is relate...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2020.135548
更新日期:2021-01-18 00:00:00
abstract::Recent research in social neuroscience proposes a link between mirror neuron system (MNS) and social cognition. The MNS has been proposed to be the neural mechanism underlying action recognition and intention understanding and more broadly social cognition. Pre-motor MNS has been suggested to modulate the motor cortex...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2009.10.033
更新日期:2009-12-25 00:00:00