Neural Networks - National Taiwan University
... by the way biological nervous systems. composed of a large number of highly interconnected processing elements (neurons) . ANNs, like people, learn by example ◦ (Learning, Recall, Generalization) ...
... by the way biological nervous systems. composed of a large number of highly interconnected processing elements (neurons) . ANNs, like people, learn by example ◦ (Learning, Recall, Generalization) ...
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... interconnect different areas within a hemisphere, e.g. primary and association visual areas. Short association fibers connect adjacent gyri, whereas long association fibers interconnect different cortical regions in two lobes. Two examples of long-association-fiber pathways are: the arcuate fascicul ...
... interconnect different areas within a hemisphere, e.g. primary and association visual areas. Short association fibers connect adjacent gyri, whereas long association fibers interconnect different cortical regions in two lobes. Two examples of long-association-fiber pathways are: the arcuate fascicul ...
UShape Representation in the Inferior Temporal Cortex of MonkeysU
... Mathematically, the network is designed to solve an approximation problem in a high-dimensional space [13]. Learning to recognize an object is assumed to be equivalent to finding a surface in this space that provides the best fit to a set of training data corresponding to the object's familiar views ...
... Mathematically, the network is designed to solve an approximation problem in a high-dimensional space [13]. Learning to recognize an object is assumed to be equivalent to finding a surface in this space that provides the best fit to a set of training data corresponding to the object's familiar views ...
The Existence of a Layer IV in the Rat Motor Cortex
... the seven cortical images formed what we will refer to as a ‘3-D mosaic’, measuring 200 µm × 30 µm × cortical thickness. Our program ‘Mark’ was then used to count the number of neurons in a counting frame (i.e. counting box) applied within the ‘3-D mosaic’. The counting frame measured 170 µm × 25 µm ...
... the seven cortical images formed what we will refer to as a ‘3-D mosaic’, measuring 200 µm × 30 µm × cortical thickness. Our program ‘Mark’ was then used to count the number of neurons in a counting frame (i.e. counting box) applied within the ‘3-D mosaic’. The counting frame measured 170 µm × 25 µm ...
PDF
... the content of experience, not every second-level representation is experienced. Lamme (2010) has not only argued in favor of localizing the content of experience at the second level, but also in favor of localizing experience itself at this level. He has argued that representations processed at the ...
... the content of experience, not every second-level representation is experienced. Lamme (2010) has not only argued in favor of localizing the content of experience at the second level, but also in favor of localizing experience itself at this level. He has argued that representations processed at the ...
Local Field Potential in the Visual System
... The primary visual cortex is the cortical area that receives visual information from the retina via the lateral geniculate nucleus of the thalamus, with most projections arriving in the thalamocortical recipient layer 4 and some also in layer 6. From layer 4, which is often referred to as the granul ...
... The primary visual cortex is the cortical area that receives visual information from the retina via the lateral geniculate nucleus of the thalamus, with most projections arriving in the thalamocortical recipient layer 4 and some also in layer 6. From layer 4, which is often referred to as the granul ...
Introduction to Psychology
... Explain place and frequency theories of pitch perception and describe how we locate sounds. Describe the sense of touch and explain the basis of pain. Describe the senses of taste and smell and comment on the nature of sensory interaction. Distinguish between kinesthesis and the vestibular sense. De ...
... Explain place and frequency theories of pitch perception and describe how we locate sounds. Describe the sense of touch and explain the basis of pain. Describe the senses of taste and smell and comment on the nature of sensory interaction. Distinguish between kinesthesis and the vestibular sense. De ...
T2 - Center for Neural Basis of Cognition
... Remapping in humans produces activity in the hemisphere ipsilateral to the stimulus. Remapped activity is present in human parietal, extrastriate and striate cortex. Remapped visual signals are more prevalent at higher levels of the visual system hierarchy. Remapping occurs in parietal and visual co ...
... Remapping in humans produces activity in the hemisphere ipsilateral to the stimulus. Remapped activity is present in human parietal, extrastriate and striate cortex. Remapped visual signals are more prevalent at higher levels of the visual system hierarchy. Remapping occurs in parietal and visual co ...
Rhythmicity, randomness and synchrony in climbing fiber signals
... deficits in motor coordination and learning [34]. In addition, they make a 10-Hz involuntary oscillation of their eyes that disappears on ablation of the cerebellar flocculus [33]. Electrophysiological recordings revealed that the Purkinje neurons of these mice tended to fire complex spikes at w10 H ...
... deficits in motor coordination and learning [34]. In addition, they make a 10-Hz involuntary oscillation of their eyes that disappears on ablation of the cerebellar flocculus [33]. Electrophysiological recordings revealed that the Purkinje neurons of these mice tended to fire complex spikes at w10 H ...
Coherence a measure of the brain networks: past and present
... Phase synchrony is another math signal processing technique that estimates the synchrony of oscillations in EEG and MEG data. This is the process where two or more cyclic signals tend to have oscillator activity that are the same (in phase) or out of synchrony (out of phase) by a relative phase angl ...
... Phase synchrony is another math signal processing technique that estimates the synchrony of oscillations in EEG and MEG data. This is the process where two or more cyclic signals tend to have oscillator activity that are the same (in phase) or out of synchrony (out of phase) by a relative phase angl ...
A Gaussian Approach to Neural Nets with Multiple Memory Domains
... strengths of the synaptic coupling coefficients. The neurons are characterized by the absolute refractory period, the firing threshold and the synaptic delay . It is assumed here that the refractory period is greater than the synaptic delay, but less than twice the synaptic delay. A parameter r ...
... strengths of the synaptic coupling coefficients. The neurons are characterized by the absolute refractory period, the firing threshold and the synaptic delay . It is assumed here that the refractory period is greater than the synaptic delay, but less than twice the synaptic delay. A parameter r ...
Principles of neural ensemble physiology underlying the operation
... cortex (PP) neurons were used. Moreover, the difference in prediction performance was much smaller between these two cortical areas when gripping force was used as the predicted parameter. However, NDC extrapolation to larger samples13 indicates that, if a sufficiently large sample of PP neurons cou ...
... cortex (PP) neurons were used. Moreover, the difference in prediction performance was much smaller between these two cortical areas when gripping force was used as the predicted parameter. However, NDC extrapolation to larger samples13 indicates that, if a sufficiently large sample of PP neurons cou ...
Brain rhythms in mental time travel
... search through one's past experience which yields a set of overt behavioral responses in the form of vocal report of the studied items. While much of memory search is behaviorally covert, reliable neural signals are produced which reflect the dynamics of the search and can reveal the influence of the ...
... search through one's past experience which yields a set of overt behavioral responses in the form of vocal report of the studied items. While much of memory search is behaviorally covert, reliable neural signals are produced which reflect the dynamics of the search and can reveal the influence of the ...
Some Speculative Hypotheses about the Nature
... While many studies have investigated the properties of neurons in visual motion area MT and the neural mechanisms of smooth pursuit eye movements and saccades, surprisingly few have analysed the functional neuroanatomy of visual motion anticipation. Ando (2002) recently reported the results of a fun ...
... While many studies have investigated the properties of neurons in visual motion area MT and the neural mechanisms of smooth pursuit eye movements and saccades, surprisingly few have analysed the functional neuroanatomy of visual motion anticipation. Ando (2002) recently reported the results of a fun ...
Logic and Complexity in Cognitive Science
... and told that all cards have a number on one side and a letter on the other. The faces visible to the subject read D, K , 3, and 7. The subject is then told “Every card which has a D on one side has a 3 on the other” and asked which cards they need to turn over to verify this rule. From a classical ...
... and told that all cards have a number on one side and a letter on the other. The faces visible to the subject read D, K , 3, and 7. The subject is then told “Every card which has a D on one side has a 3 on the other” and asked which cards they need to turn over to verify this rule. From a classical ...
Trigeminal pathways PP
... The right side of the pons is lesioned. What sensory loss would you expect? Below the lesion: • Loss of facial sensation on right • Loss of pain and temp from left side • Loss of proprioception/vibration from left side ...
... The right side of the pons is lesioned. What sensory loss would you expect? Below the lesion: • Loss of facial sensation on right • Loss of pain and temp from left side • Loss of proprioception/vibration from left side ...
Meaningful auditory information enhances perception of visual
... the theoretical threshold predictions derived by some summation models. The optimal statistical integration of auditory and visual signals provided by the Bayesian fusion model correctly accounts for results obtained when sounds were out of phase relative to visual streams. However, the further impr ...
... the theoretical threshold predictions derived by some summation models. The optimal statistical integration of auditory and visual signals provided by the Bayesian fusion model correctly accounts for results obtained when sounds were out of phase relative to visual streams. However, the further impr ...
Emergentism
... actually has a life of its own, then we can consider independent laws of causation operating within the mental realm, and even top-down causation (but only on non-deterministic aspects of the lowlevel processes). Such a scheme, however, abandons any attempt at explanation. The consciousness mind is ...
... actually has a life of its own, then we can consider independent laws of causation operating within the mental realm, and even top-down causation (but only on non-deterministic aspects of the lowlevel processes). Such a scheme, however, abandons any attempt at explanation. The consciousness mind is ...
Deciphering a neural code for vision
... and motion of potential mates. The neural code for such objects is not found in ambiguous messages of individual optic nerve fibers but rather in patterns of coherent activity that extend over small ensembles of nerve fibers and are bound together by stimulus motion. Integrative properties of neuron ...
... and motion of potential mates. The neural code for such objects is not found in ambiguous messages of individual optic nerve fibers but rather in patterns of coherent activity that extend over small ensembles of nerve fibers and are bound together by stimulus motion. Integrative properties of neuron ...
`What` and `where` in the human brain
... Area V4 in the monkey contains neurons selective for many different features relevant for object recognition, including color and shape [14,15,68,69’1. In Old World monkeys, the area is located dorsally in the hemisphere (mainly on the prelunate gyrus), where the lower visual field is represented, a ...
... Area V4 in the monkey contains neurons selective for many different features relevant for object recognition, including color and shape [14,15,68,69’1. In Old World monkeys, the area is located dorsally in the hemisphere (mainly on the prelunate gyrus), where the lower visual field is represented, a ...
Coefficient of Variation (CV) vs Mean Interspike Interval (ISI) curves
... experimentally, we will postulate that neuronal firing in cortical cells is of Poisson-type. Apart from the work mentioned above [15,18], other earlier experimental studies have shown that cortical neuron firing is highly irregular; Smith and Smith [17] investigated the spontaneous cortical activity ...
... experimentally, we will postulate that neuronal firing in cortical cells is of Poisson-type. Apart from the work mentioned above [15,18], other earlier experimental studies have shown that cortical neuron firing is highly irregular; Smith and Smith [17] investigated the spontaneous cortical activity ...
Dscam and DSCAM: complex genes in simple animals, complex
... the fidelity of single exon selection, and second, is the alternative exon selection random or not? It appears that different mechanisms control the exclusive alternative splicing of exon 4, exon 6, and exon 9 clusters. The question of single exon selection in splicing of exon 4 and exon 6 variants ...
... the fidelity of single exon selection, and second, is the alternative exon selection random or not? It appears that different mechanisms control the exclusive alternative splicing of exon 4, exon 6, and exon 9 clusters. The question of single exon selection in splicing of exon 4 and exon 6 variants ...
Lecture 6 - Wiki Index
... Detection of medical phenomena. A variety of health-related indices (e.g., a combination of heart rate, levels of various substances in the blood, respiration rate) can be monitored. The onset of a particular medical condition could be associated with a very complex (e.g., nonlinear and interactive) ...
... Detection of medical phenomena. A variety of health-related indices (e.g., a combination of heart rate, levels of various substances in the blood, respiration rate) can be monitored. The onset of a particular medical condition could be associated with a very complex (e.g., nonlinear and interactive) ...