Continuous attractor network models of grid cell firing based on
... firing patterns are the result of computation of location from velocity inputs, with additional spatial input required to oppose drift in the attractor state. We focus on properties of continuous attractor networks that are revealed by explicitly considering excitatory and inhibitory neurons, their ...
... firing patterns are the result of computation of location from velocity inputs, with additional spatial input required to oppose drift in the attractor state. We focus on properties of continuous attractor networks that are revealed by explicitly considering excitatory and inhibitory neurons, their ...
KISHORE Aswathy - School of Computing
... According to previous studies (for example, [1], [2]), when perceiving a visual stimulus such as a simple coloured object, the brain stores information about it using what is called a ‘compositional representation’. Accordingly, different features of the object such as shape, texture and colour wil ...
... According to previous studies (for example, [1], [2]), when perceiving a visual stimulus such as a simple coloured object, the brain stores information about it using what is called a ‘compositional representation’. Accordingly, different features of the object such as shape, texture and colour wil ...
An Optogenetic Approach to Understanding the Neural Circuits of Fear
... Over the past 30 years, studies using lesion, electrophysiological, pharmacological, and biochemical/molecular techniques have revealed a great deal about the neural mechanisms of fear learning (1–7,11–13). Despite this progress, much remains to be understood about the fundamental principles by whic ...
... Over the past 30 years, studies using lesion, electrophysiological, pharmacological, and biochemical/molecular techniques have revealed a great deal about the neural mechanisms of fear learning (1–7,11–13). Despite this progress, much remains to be understood about the fundamental principles by whic ...
Olfactory processing: maps, time and codes Gilles Laurent
... recognize or decode precise temporal sequences of neural events. Justifiably less familiar, though not new, is the idea that temporal sequences of neural events might be used also to encode and decode stimuli that are, to a degree, static, such as a short odor puff. Recent work on olfactory processi ...
... recognize or decode precise temporal sequences of neural events. Justifiably less familiar, though not new, is the idea that temporal sequences of neural events might be used also to encode and decode stimuli that are, to a degree, static, such as a short odor puff. Recent work on olfactory processi ...
Temporal and spatial neural dynamics in the perception of basic
... involve aspects related to the evaluation of self-relevance and they have a more pronounced social dimension, as their expression is linked to affiliative or approach responses. Therefore, the neural signature of sadness and happiness may involve a slower unfolding over time than that of fear or dis ...
... involve aspects related to the evaluation of self-relevance and they have a more pronounced social dimension, as their expression is linked to affiliative or approach responses. Therefore, the neural signature of sadness and happiness may involve a slower unfolding over time than that of fear or dis ...
Physiology of functional and effective networks in epilepsy
... networks can be defined at multiple spatial and temporal scales, ranging from synapses to large brain regions, and microseconds to hours. We will therefore start out by reviewing the network terminology used here followed by three definitions of network connectivity that are commonly evaluated. The te ...
... networks can be defined at multiple spatial and temporal scales, ranging from synapses to large brain regions, and microseconds to hours. We will therefore start out by reviewing the network terminology used here followed by three definitions of network connectivity that are commonly evaluated. The te ...
On the Nature of Visual-Oculomotor Connections
... seen in Fig. 1. It appears that motoneurons obey Equation 1 for all types of eye movements, which is to suggest that the final common path is shared equally by all the eye movement subsystems. It has also been possible to demonstrate unequivocally that there is no stretch reflex in the extraocular m ...
... seen in Fig. 1. It appears that motoneurons obey Equation 1 for all types of eye movements, which is to suggest that the final common path is shared equally by all the eye movement subsystems. It has also been possible to demonstrate unequivocally that there is no stretch reflex in the extraocular m ...
action potential
... Be able to identify the following morphological features of the neuron and to describe the role they play in receiving and transmitting neural impulses. (basic cell of brain and peripheral nervous system) a. neuron (contains nucleus with RNA and metabolic components) b. cell body (soma) (processes t ...
... Be able to identify the following morphological features of the neuron and to describe the role they play in receiving and transmitting neural impulses. (basic cell of brain and peripheral nervous system) a. neuron (contains nucleus with RNA and metabolic components) b. cell body (soma) (processes t ...
Failure of the oculomotor neural integrator from a discrete midline
... Simulations of a version of the neural integrator model proposed by Cannon et al. [4] were run to determine the effects of commissurotomy. In this version, model MVN/NPH neurons driven from one vestibular input were segregated on one side of the brainstem. Thus the lateral inhibitory connections bet ...
... Simulations of a version of the neural integrator model proposed by Cannon et al. [4] were run to determine the effects of commissurotomy. In this version, model MVN/NPH neurons driven from one vestibular input were segregated on one side of the brainstem. Thus the lateral inhibitory connections bet ...
From format to function: Embodiment and the functional roles of
... Most modal theories are therefore explicitly reductionist, in the sense that they make claims about the biological substrate of cognition. It is a claimed overlap at the neural level that gives concepts their perceptual or motor format. Importantly, modal accounts often do not specify whether it is ...
... Most modal theories are therefore explicitly reductionist, in the sense that they make claims about the biological substrate of cognition. It is a claimed overlap at the neural level that gives concepts their perceptual or motor format. Importantly, modal accounts often do not specify whether it is ...
PDF
... Kalcheim and Teillet, 1989; Stern and Keynes, 1987). Although previous work implicated Eph/ephrin and neuropilin 1/semaphorin 3A (Nrp1/Sema3A) in somite to neural crest signaling (Eickholt et al., 1999; Krull et al., 1997; Wang et al., 1998), mouse knockouts of these molecules failed to exhibit segm ...
... Kalcheim and Teillet, 1989; Stern and Keynes, 1987). Although previous work implicated Eph/ephrin and neuropilin 1/semaphorin 3A (Nrp1/Sema3A) in somite to neural crest signaling (Eickholt et al., 1999; Krull et al., 1997; Wang et al., 1998), mouse knockouts of these molecules failed to exhibit segm ...
A Neurocomputational Instructional Indicator of Working Memory
... automated learning environments by applying metrics of instructional efficiency within the conceptual framework of cognitive load theory. The test bed is a simulated learning environment, in which the organization of the learning content is represented as a dependency graph of topics. The human lear ...
... automated learning environments by applying metrics of instructional efficiency within the conceptual framework of cognitive load theory. The test bed is a simulated learning environment, in which the organization of the learning content is represented as a dependency graph of topics. The human lear ...
Motor Cortical Networks for Skilled Movements Have Reaching
... 2.1. Recording Neuronal Data. The experiments were approved by the Animal Ethics Committee of the University of Western Australia, and the NH&MRC (National Health and Medical Research Council of Australia) guidelines for the use of animal in experiments were followed throughout. Methods of task trai ...
... 2.1. Recording Neuronal Data. The experiments were approved by the Animal Ethics Committee of the University of Western Australia, and the NH&MRC (National Health and Medical Research Council of Australia) guidelines for the use of animal in experiments were followed throughout. Methods of task trai ...
Advanced biomaterial strategies to transplant preformed micro
... no current strategies to restore lost long-distance axonal pathways in the brain. We are creating transplantable micro-tissue engineered neural networks (micro-TENNs), which are preformed constructs consisting of embedded neurons and long axonal tracts to integrate with the nervous system to physica ...
... no current strategies to restore lost long-distance axonal pathways in the brain. We are creating transplantable micro-tissue engineered neural networks (micro-TENNs), which are preformed constructs consisting of embedded neurons and long axonal tracts to integrate with the nervous system to physica ...
Auditory Nerve Stochasticity Impedes Category Learning: the Role
... average values reported by [13] for male speakers. It can be seen that the generated vowel transforms are in line with the vowel distribution clouds produced from natural speech of a single speaker [14]. All transforms were checked by human subjects to ensure that they were recognisable as either an ...
... average values reported by [13] for male speakers. It can be seen that the generated vowel transforms are in line with the vowel distribution clouds produced from natural speech of a single speaker [14]. All transforms were checked by human subjects to ensure that they were recognisable as either an ...
Hierarchical organization of functional connectivity in the mouse brain
... Here we have analyzed functional connectivity networks constructed from a large resting state fMRI dataset from mice. In particular, a set of anatomical regions of interest is individuated (see SI for the complete list) and the corresponding activity (whence the name “functional”) is recorded, in or ...
... Here we have analyzed functional connectivity networks constructed from a large resting state fMRI dataset from mice. In particular, a set of anatomical regions of interest is individuated (see SI for the complete list) and the corresponding activity (whence the name “functional”) is recorded, in or ...
Fact vs fiction—how paratextual information
... when participants evaluated real persons and concluded that real persons elicit more autobiographical memory retrieval as they have a higher personal relevance (see also Summerfield et al., 2009). However, as all those studies used slightly different materials across conditions, it cannot be exclude ...
... when participants evaluated real persons and concluded that real persons elicit more autobiographical memory retrieval as they have a higher personal relevance (see also Summerfield et al., 2009). However, as all those studies used slightly different materials across conditions, it cannot be exclude ...
E3R Game 1 Order That Student Copy
... Students must place the following activities in the correct chronological order: Transmission across a Synaptic Cleft: A. Receptors are ligand gated sodium ion channels which allow Na+ to enter the postsynaptic neuron (or muscle) and triggers an action potential in the postsynaptic neuron (or muscle ...
... Students must place the following activities in the correct chronological order: Transmission across a Synaptic Cleft: A. Receptors are ligand gated sodium ion channels which allow Na+ to enter the postsynaptic neuron (or muscle) and triggers an action potential in the postsynaptic neuron (or muscle ...