Read e-book online Computational Modelling in Behavioural Neuroscience: Closing PDF

By Dietmar Heinke, Eirini Mavritsaki

ISBN-10: 1841697389

ISBN-13: 9781841697383

Classically, behavioural neuroscience theorizes approximately experimental proof in a qualitative approach. despite the fact that, extra lately there was an expanding improvement of mathematical and computational versions of experimental effects, and commonly those versions are extra in actual fact outlined and extra distinctive than their qualitative counter components. those new computational versions will be organize so they are in keeping with either unmarried neuron and whole-system degrees of operation, permitting physiological effects to be meshed with behavioural info – hence final the distance among neurophysiology and human behaviour.

There is huge variety among versions with admire to the technique of designing a version, the measure to which neurophysiological strategies are taken into consideration and how info (behavioural, electrophysiological, and so on) constrains a version. This publication provides examples of this range and in doing so represents the state-of-art within the box via a different selection of papers from the world's best researchers within the zone of computational modelling in behavioural neuroscience.

Based on talks given on the 3rd Behavioural mind Sciences Symposium, held on the Behavioural mind Sciences Centre, collage of Birmingham, in might 2007, the e-book appeals to a huge viewers, from postgraduate scholars starting to paintings within the box to skilled experimenters drawn to an overview.

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Hippocampus, 3, 317–330. , & Erdi, P. (2006). Intrinsic and synaptic mechanisms determining the timing of neuron population activity during hippocampal theta oscillation. Journal of Neurophysiology, 96, 2889–2904. , & Norman, K. (2002). Hippocampal and neocortical contributions to memory: Advances in the complementary learning systems framework. Trends in Cognitive Sciences, 6, 505–510. , & Lisman, J. (2000). Dopamine, serotonin, and noradrenaline strongly inhibit the direct perforant path-CA1 synaptic input, but have little effect on the Schaffer collateral input.

3 The limits of Poisson rate coding The main problem with using a Poisson rate code stems from its inherent unreliability. Some time ago, Jacques Gautrais looked at how accurately one can estimate the underlying firing rate of a neuron using a Poisson rate coding scheme as a function of the amount of time available for measurement (Gautrais & Thorpe, 1998). , an observed frequency of 100 Hz), and that we have just 10 ms to make a judgement. What can we say about the actual firing rate, given that one spike is received in 10 ms?

This is true here in that only the CA3 input to CA1 PCs is to modifiable synapses. In reality most, if not all, synaptic pathways are modifiable in the face of particular patterns of activity. For example, the entorhinal input to the distal dendrites of CA1 PCs is Hebbian-modifiable, and the post-synaptic signals in these dendrites are under specific inhibitory and neuromodulatory control (Remondes & Schuman, 2002). EC input can, in fact, appear largely inhibitory due to activation of feedforward interneurons and can result in a reduction of plasticity at CA3 synapses onto CA1 PCs (Remondes & Schuman, 2002).

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Computational Modelling in Behavioural Neuroscience: Closing the Gap Between Neurophysiology and Behaviour by Dietmar Heinke, Eirini Mavritsaki


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