Submissions tagged with neurobiology
(9 documents)
The modulation of alpha-wave amplitude in human EEG by the intention to act with a motor response
The most conspicuous signal in the human EEG is the so-called alpha wave, oscillations in the frequency range of 8 to 12 Hz. Visual stimulation of the retina suppresses the amplitude of alpha waves…
Received 04 September 2009 08:49 UTC; Posted 04 September 2009
Posted to: Neuroscience
Requirements for a single cell mechanism of entorhinal “grid field” activity: role of dendritic oscillators and coupling
The responses of rat medial entorhinal cortical neurons form characteristic grid patterns as a function of the animal’s position. A recent model of grid fields proposes a mechanism based on intrins…
Received 12 June 2009 12:13 UTC; Posted 12 June 2009
Posted to: Neuroscience
Sensorimotor states affect choice in the magnitude judgment of ambiguous durations
The statistics of the environment seem to exert optimal influence on the organization of functions subserving decision making. In order to make decisions about ambiguous sensory information, predic…
Received 20 May 2009 12:47 UTC; Posted 20 May 2009
Posted to: Neuroscience
Chaotic Neural Dynamics as Evinced from Scalp Electroencephalography (EEG)
The objective of the present study was to elucidate evidence of and to revisit chaotic itinerancy in human brains by means of noninvasive scalp electroencephalogram (EEG) in normal subjects; with t…
Received 14 January 2009 08:09 UTC; Posted 14 January 2009
Posted to: Neuroscience
Mushroom-bodies regulate habit formation in Drosophila
Our past experience is one of the primary sources of information when faced with a choice. We ask ourselves: “what will happen if I do this?” Accurately predicting the consequences of our actions …
Received 17 September 2008 12:12 UTC; Posted 17 September 2008
Posted to: Genetics & Genomics, Neuroscience
D-aspartate exerts an opposing role upon age-dependent NMDAR-related synaptic plasticity and memory decay
In the present study, we demonstrated that D-aspartate acts as an in vitro and in vivo neuromodulatory molecule upon hippocampal NMDAR transmission. Accordingly, we showed that this D-amino aci…
Received 14 May 2008 19:45 UTC; Posted 15 May 2008
Posted to: Genetics & Genomics, Neuroscience
A Mathematical Model of a Neuron with Synapses based on Physiology
The neuron, when considered as a signal processing device, itsinputs are the frequency of pulses received at the synapses, and its output is the frequency of action potentials generated- in essence…
Received 21 March 2008 02:25 UTC; Posted 26 March 2008
Posted to: Neuroscience
Beyond Spike Timing Theory – Thermodynamics of Neuronal Computation
This paper highlights ionic fluxes as information carriers in neurons. The theoretical framework regarding information transfer is presented as changes in the thermodynamic entropy that underlie sp…
Received 25 October 2007 14:56 UTC; Posted 25 October 2007
Posted to: Neuroscience
Reading the Neural Code: What do Spikes Mean for Behavior?
The present study reveals the existence of an intrinsic spatial code within neuronal spikes that predicts behavior. As rats learnt a T-maze procedural task, simultaneous changes in temporal occurre…
Received 18 June 2007 15:10 UTC; Posted 18 June 2007
Posted to: Neuroscience
