Genealogy of the “Grandmother Cell”
... of one’s grandmother. The term originated in a parable Jerry Lettvin told in 1967. A similar concept had been systematically developed a few years earlier by Jerzy Konorski who called such cells “gnostic” units. This essay discusses the origin, influence, and current status of these terms and of the ...
... of one’s grandmother. The term originated in a parable Jerry Lettvin told in 1967. A similar concept had been systematically developed a few years earlier by Jerzy Konorski who called such cells “gnostic” units. This essay discusses the origin, influence, and current status of these terms and of the ...
Automated image computing reshapes computational neuroscience Open Access
... and atlases with image computing methods offers a synergistic opportunity to improve both of them iteratively. In both atlases and databases, it is possible to quantify neuronal patterns from many samples statistically. The statistics provide good “rules” or “priors”, and new paradigms, for improvin ...
... and atlases with image computing methods offers a synergistic opportunity to improve both of them iteratively. In both atlases and databases, it is possible to quantify neuronal patterns from many samples statistically. The statistics provide good “rules” or “priors”, and new paradigms, for improvin ...
NEURONS AS BIOANTENNAS
... have not a full neuropysiological explanation yet. However, none of these models had up to now a significant experimental verification. Our researches began with a tentative experimental set-up constituted by two networks of human neural stem cells cultured on separated MEAs (Micro Electrode Arrays) ...
... have not a full neuropysiological explanation yet. However, none of these models had up to now a significant experimental verification. Our researches began with a tentative experimental set-up constituted by two networks of human neural stem cells cultured on separated MEAs (Micro Electrode Arrays) ...
NEURONS AS BIOANTENNAS
... Although it was not possible to quantify the exact number of photons that hit the MEAs, the impossibility for the human eye to perceive them implies that their number was less than 10 units. The reactivity of neurons to very weak light pulses could be due to the presence of microtubules in their ce ...
... Although it was not possible to quantify the exact number of photons that hit the MEAs, the impossibility for the human eye to perceive them implies that their number was less than 10 units. The reactivity of neurons to very weak light pulses could be due to the presence of microtubules in their ce ...
File
... A coating of fatty tissue along the axon which insulates the neuron and prevents information from spreading to other neurons. ...
... A coating of fatty tissue along the axon which insulates the neuron and prevents information from spreading to other neurons. ...
Lund University Publications
... protein coupled receptors to opsins, generating synthetic opsin‐receptor chimeras (termed OptoXR) (35). With this continuous expansion of optogenetic tools in various domains of cellular functions, more efficient and extended control of a broad range of cell types and fu ...
... protein coupled receptors to opsins, generating synthetic opsin‐receptor chimeras (termed OptoXR) (35). With this continuous expansion of optogenetic tools in various domains of cellular functions, more efficient and extended control of a broad range of cell types and fu ...
Nervous System Fundamentals
... c. A ______________ _______ is formed by the Schwann cell neurilemma d. The tube guides the growing ______ back to its original destination e. Skeletal muscle cells _____________ when their nerve fiber is severed, but _____________ when the connection is reestablished B. ___________ - nerve cells th ...
... c. A ______________ _______ is formed by the Schwann cell neurilemma d. The tube guides the growing ______ back to its original destination e. Skeletal muscle cells _____________ when their nerve fiber is severed, but _____________ when the connection is reestablished B. ___________ - nerve cells th ...
Negatively-Correlated Firing - Department of Computer Science
... Understanding the functional meaning of particular aspects of neural architecture is a central objective of computational neuroscience. Inhibitory interneurons are very common in the neocortex, and lateral inhibition has been shown to play an important role in sharpening the distinctions between sim ...
... Understanding the functional meaning of particular aspects of neural architecture is a central objective of computational neuroscience. Inhibitory interneurons are very common in the neocortex, and lateral inhibition has been shown to play an important role in sharpening the distinctions between sim ...
REM-off
... threshold for a greater proportion of the time associated with the excitatory input. Thus, because of the action of the neuromodulator, the neuron responds differently to the same input. In our second example (Hasselmo et al), the specific ion channel, unfortunately, has not been identified. Both NE ...
... threshold for a greater proportion of the time associated with the excitatory input. Thus, because of the action of the neuromodulator, the neuron responds differently to the same input. In our second example (Hasselmo et al), the specific ion channel, unfortunately, has not been identified. Both NE ...
nervous systems
... that receive, encode, and transmit information. Neurons with their support cells (glial cells) make up nervous systems. Modified neurons called sensory cells receive information and convert or transduce it into electrical signals that are transmitted and processed by other neurons. To cause behavior ...
... that receive, encode, and transmit information. Neurons with their support cells (glial cells) make up nervous systems. Modified neurons called sensory cells receive information and convert or transduce it into electrical signals that are transmitted and processed by other neurons. To cause behavior ...
Physiologically-Inspired Model for the Visual Tuning Properties of
... of three-dimensional structure, in particular from monocular image sequences, is a difficult computational problem. A large body of results on the recognition of static shapes suggests that the visual system might not reconstruct the full 3D structure of recognized objects. Instead, it seems to base ...
... of three-dimensional structure, in particular from monocular image sequences, is a difficult computational problem. A large body of results on the recognition of static shapes suggests that the visual system might not reconstruct the full 3D structure of recognized objects. Instead, it seems to base ...
download file
... examined by reference to neurons in the STS which are selective for the sight of particular reaching actions (e.g. Perrett et al., 1989). In particular, examples of cells selectively responsive to moving towards a door from any direction and other cells responsive to the sight of another individual ...
... examined by reference to neurons in the STS which are selective for the sight of particular reaching actions (e.g. Perrett et al., 1989). In particular, examples of cells selectively responsive to moving towards a door from any direction and other cells responsive to the sight of another individual ...
Competitive Dynamics in Cortical Responses to Visual Stimuli
... constant input I, which ranged from 0 to 2.5. The relative value of the external inputs to E1 and E2 neurons depended on the stimulus presented. If we presented stimulus 1 (Object), which was preferred by E1 and not preferred by E2, then the external current to E1 was higher than the external curren ...
... constant input I, which ranged from 0 to 2.5. The relative value of the external inputs to E1 and E2 neurons depended on the stimulus presented. If we presented stimulus 1 (Object), which was preferred by E1 and not preferred by E2, then the external current to E1 was higher than the external curren ...
Information transmission and recovery in neural communications
... systems the precise timing of the spikes also plays a significant role in the communication process 关12,13兴. Moreover, it is not clear at all if the information processing is always performed by single neurons or if population coding is needed. It is possible that both types of coding are present in ...
... systems the precise timing of the spikes also plays a significant role in the communication process 关12,13兴. Moreover, it is not clear at all if the information processing is always performed by single neurons or if population coding is needed. It is possible that both types of coding are present in ...
Answer Key Chapter 28 - Scarsdale Public Schools
... 13. Briefly explain how a neuron can receive both excitatory and inhibitory signals and yet still fire an action potential in the receiving cell. The neuron will be able to fire an action potential as long as the incoming signals are collectively strong enough to bring the neuron’s membrane pot ...
... 13. Briefly explain how a neuron can receive both excitatory and inhibitory signals and yet still fire an action potential in the receiving cell. The neuron will be able to fire an action potential as long as the incoming signals are collectively strong enough to bring the neuron’s membrane pot ...
3680Lecture29 - U of L Class Index
... Neural Mechanisms of Consciousness? • So how far does that get us? • Not all that far – we still don’t know what is the mechanism that causes consciousness • But we do know that it is probably distributed rather than at one locus • Thus the question is: what is special about the activity of network ...
... Neural Mechanisms of Consciousness? • So how far does that get us? • Not all that far – we still don’t know what is the mechanism that causes consciousness • But we do know that it is probably distributed rather than at one locus • Thus the question is: what is special about the activity of network ...
VESTIBULAR SYSTEM (Balance/Equilibrium) The vestibular
... left arrives at left ear first 2. Phase difference: ex., continuous sound waves will reach each ear at slightly different phases of the oscillating sound waves - these mechanisms work best with sounds of moderate frequencies 3. Intensity difference: ex., sound generated to the left are sensed slight ...
... left arrives at left ear first 2. Phase difference: ex., continuous sound waves will reach each ear at slightly different phases of the oscillating sound waves - these mechanisms work best with sounds of moderate frequencies 3. Intensity difference: ex., sound generated to the left are sensed slight ...
begin
... Continuation of the Nerve Impulse between Neurons Impulses are able to cross the synapse to another nerve Neurotransmitter is released from a nerve’s axon terminal The dendrite of the next neuron has receptors that are stimulated by the neurotransmitter An action potential is started in the ...
... Continuation of the Nerve Impulse between Neurons Impulses are able to cross the synapse to another nerve Neurotransmitter is released from a nerve’s axon terminal The dendrite of the next neuron has receptors that are stimulated by the neurotransmitter An action potential is started in the ...
Barlow, Horace (2001) - Cambridge Neuroscience
... indicate the presence of a manipulable object in the scene, though this was a disappointingly weak effect. The methods available then were feeble compared with those available now, and recent work on the statistics of natural images (Ruderman 1997) has shown that correlations of straightforward lumi ...
... indicate the presence of a manipulable object in the scene, though this was a disappointingly weak effect. The methods available then were feeble compared with those available now, and recent work on the statistics of natural images (Ruderman 1997) has shown that correlations of straightforward lumi ...
Chapter 10: Nervous System I
... TT. White matter is composed of myelinated axons. UU. Gray matter is composed of unmyelinated axons, dendrites, and cell bodies of neurons. II. Classification of Neurons and Neuroglia A. Classification of Neurons 1. The three major classifications of neurons based on structural differences are bipol ...
... TT. White matter is composed of myelinated axons. UU. Gray matter is composed of unmyelinated axons, dendrites, and cell bodies of neurons. II. Classification of Neurons and Neuroglia A. Classification of Neurons 1. The three major classifications of neurons based on structural differences are bipol ...