The Features and Functions of Neuronal Assemblies: Possible
... one of the most effective ways of studying assemblies is with molecular probes, which anchor within fatty environments of neuronal cell membranes, and are sensitive to real-time changes in membrane electrical potentials (V m ) (Loew, 1996). Voltagesensitive dyes (VSDs), which possess electrochromic ...
... one of the most effective ways of studying assemblies is with molecular probes, which anchor within fatty environments of neuronal cell membranes, and are sensitive to real-time changes in membrane electrical potentials (V m ) (Loew, 1996). Voltagesensitive dyes (VSDs), which possess electrochromic ...
Surround suppression explained by long-range
... goal for cortex: sparse coding serves to increase storage capacity12, 13 and information efficiency10, 11 of cortical populations. In visual cortex, the functional relationships between nearby neurons is modulated by the information from the visual surround: ...
... goal for cortex: sparse coding serves to increase storage capacity12, 13 and information efficiency10, 11 of cortical populations. In visual cortex, the functional relationships between nearby neurons is modulated by the information from the visual surround: ...
Evidence for implication of primate area V1 in neural 3
... gaze would be the basis for encoding the position of objects in multiple frames of reference, such as eye- and head-centered [3,4]. An alternative is that this transformation is accomplished by dynamic updating of spatial representation in conjunction with voluntary eye movements [16,25]. For many y ...
... gaze would be the basis for encoding the position of objects in multiple frames of reference, such as eye- and head-centered [3,4]. An alternative is that this transformation is accomplished by dynamic updating of spatial representation in conjunction with voluntary eye movements [16,25]. For many y ...
Contraction Properties of VLSI Cooperative Competitive Neural
... driven by the excitatory neurons and inhibiting them (see Figure 1). As a result, CCNs perform both common linear operations as well as complex non–linear operations. The linear operations include analog gain (linear amplification of the feed–forward input, mediated by the recurrent excitation and/o ...
... driven by the excitatory neurons and inhibiting them (see Figure 1). As a result, CCNs perform both common linear operations as well as complex non–linear operations. The linear operations include analog gain (linear amplification of the feed–forward input, mediated by the recurrent excitation and/o ...
Mirror Proposal 8-01 - USC - University of Southern California
... developing. F5 canonical neurons select via re-afferent connections visual neurons describing a variety of surfaces. Only those selected become AIP neurons that code affordances. Visual Feedback for Grasping: A Possible Precursor of the Mirror Property: We offer a new hypothesis for the generalizati ...
... developing. F5 canonical neurons select via re-afferent connections visual neurons describing a variety of surfaces. Only those selected become AIP neurons that code affordances. Visual Feedback for Grasping: A Possible Precursor of the Mirror Property: We offer a new hypothesis for the generalizati ...
Dopamine – CNS Pathways and Neurophysiology
... As stated above, intracellular recordings from identified DA neurons of the rat midbrain in vivo have demonstrated that these neurons are constantly bombarded by GABAergic IPSPs. Indeed, it has been suggested that up to 50% of the midbrain DA neurons are quiescent due to GABAergic-mediated hyperpola ...
... As stated above, intracellular recordings from identified DA neurons of the rat midbrain in vivo have demonstrated that these neurons are constantly bombarded by GABAergic IPSPs. Indeed, it has been suggested that up to 50% of the midbrain DA neurons are quiescent due to GABAergic-mediated hyperpola ...
Visual and oculomotor selection: links, causes and
... visual responses in V4 neurons at retinotopically corresponding locations, whereas responses at other locations were suppressed. Interestingly, both the enhancement and suppression effects depended on the presence of additional ‘distracter’ stimuli outside the V4 neuron receptive field, as has been ...
... visual responses in V4 neurons at retinotopically corresponding locations, whereas responses at other locations were suppressed. Interestingly, both the enhancement and suppression effects depended on the presence of additional ‘distracter’ stimuli outside the V4 neuron receptive field, as has been ...
J. Neurophysiol. - Nonlinear Dynamics Group
... differ from one area to another in their basic firing characteristics. Moreover, we show that spike trains obtained from a single cortical neuron can provide a clue that helps to identify its layer localization. INTRODUCTION ...
... differ from one area to another in their basic firing characteristics. Moreover, we show that spike trains obtained from a single cortical neuron can provide a clue that helps to identify its layer localization. INTRODUCTION ...
Neural realisation of the SP theory
... the system is exactly the same as before except that row 0 contains the encoded pattern and each symbol in that pattern is aligned with matching symbols in the rows below. The original sentence has, in effect, been recreated because the alignment contains the words of the sentence in their correct o ...
... the system is exactly the same as before except that row 0 contains the encoded pattern and each symbol in that pattern is aligned with matching symbols in the rows below. The original sentence has, in effect, been recreated because the alignment contains the words of the sentence in their correct o ...
Decoding Complete Reach and Grasp Actions from Local Primary
... d, Projection of the position of the arm endpoint (proximal wrist marker) onto the coronal, sagittal, and transverse planes (dataset C1). Color saturation indicates the density of the points. Marginal distributions of density are shown along each axis. Crosses denote the mean and quartiles. The high ...
... d, Projection of the position of the arm endpoint (proximal wrist marker) onto the coronal, sagittal, and transverse planes (dataset C1). Color saturation indicates the density of the points. Marginal distributions of density are shown along each axis. Crosses denote the mean and quartiles. The high ...
Encoding of Action History in the Rat Ventral Striatum
... value functions based on the reward prediction errors are not well understood. Clearly, this updating mechanism has to integrate multiple types of signals, such as value functions and reward prediction errors. In addition, the process of reinforcement learning would be greatly facilitated if memory ...
... value functions based on the reward prediction errors are not well understood. Clearly, this updating mechanism has to integrate multiple types of signals, such as value functions and reward prediction errors. In addition, the process of reinforcement learning would be greatly facilitated if memory ...
Estimating Fast Neural Input Using Anatomical and
... can only give causal information if the connection between source and target is directed and having a long delay. Anatomical based methods (8–10) and those that extract the activity in the synapse (12–13) can most reliably identify causal/projecting neurons. Calcium hot-spot derived post synaptic ac ...
... can only give causal information if the connection between source and target is directed and having a long delay. Anatomical based methods (8–10) and those that extract the activity in the synapse (12–13) can most reliably identify causal/projecting neurons. Calcium hot-spot derived post synaptic ac ...
12 - Dr. Jerry Cronin
... • Visual association area – Surrounds primary visual cortex – Uses past visual experiences to interpret visual stimuli (e.g., color, form, and movement) • E.g., ability to recognize faces ...
... • Visual association area – Surrounds primary visual cortex – Uses past visual experiences to interpret visual stimuli (e.g., color, form, and movement) • E.g., ability to recognize faces ...
Does the sound of a barking dog activate its corresponding visual
... hypotheses regarding interactivity between hub and spoke regions in this manner. This could reflect, at least in part, the considerable methodological challenge of isolating activation specific to semantic processes from that associated with sensorimotor perceptual processes per se. Conventional sub ...
... hypotheses regarding interactivity between hub and spoke regions in this manner. This could reflect, at least in part, the considerable methodological challenge of isolating activation specific to semantic processes from that associated with sensorimotor perceptual processes per se. Conventional sub ...
Cortex - Anatomy and Physiology
... • Visual association area – Surrounds primary visual cortex – Uses past visual experiences to interpret visual stimuli (e.g., color, form, and movement) • E.g., ability to recognize faces ...
... • Visual association area – Surrounds primary visual cortex – Uses past visual experiences to interpret visual stimuli (e.g., color, form, and movement) • E.g., ability to recognize faces ...
A Gentle Introduction to Soar, an Architecture for Human
... in ways that are unrelated to our desires and intentions. If we want to cook dinner, we go to an appropriate location, gather ingredients and implements, then chop, stir and season until we’ve produced the desired result. We may have to learn new actions (braising rather than frying) or the correct ...
... in ways that are unrelated to our desires and intentions. If we want to cook dinner, we go to an appropriate location, gather ingredients and implements, then chop, stir and season until we’ve produced the desired result. We may have to learn new actions (braising rather than frying) or the correct ...
Basal Ganglia: Mechanisms for Action Selection
... action selection – a phenomenon termed contrast enhancement. This makes functional sense: an enhanced tonic inhibitory signal being output from most channels indicates a definite nonselection of that action. However, when observed in experimental data, such increases in activity, timelocked to movem ...
... action selection – a phenomenon termed contrast enhancement. This makes functional sense: an enhanced tonic inhibitory signal being output from most channels indicates a definite nonselection of that action. However, when observed in experimental data, such increases in activity, timelocked to movem ...
Down - 서울대 Biointelligence lab
... For very small time intervals, so that at most one spike can occur during this time, there is not much freedom for a coding scheme so that we can expect a universal curve, rs r rs I (t 1) r log 2 ...
... For very small time intervals, so that at most one spike can occur during this time, there is not much freedom for a coding scheme so that we can expect a universal curve, rs r rs I (t 1) r log 2 ...
Down - 서울대 Biointelligence lab
... For very small time intervals, so that at most one spike can occur during this time, there is not much freedom for a coding scheme so that we can expect a universal curve, rs r rs I (t 1) r log 2 ...
... For very small time intervals, so that at most one spike can occur during this time, there is not much freedom for a coding scheme so that we can expect a universal curve, rs r rs I (t 1) r log 2 ...
05-Intro-Vision-2
... It is also found, for example, in somatosensory cortex. Somatosensory neurons also have a receptive field, a preferred stimulus, and a tuning ...
... It is also found, for example, in somatosensory cortex. Somatosensory neurons also have a receptive field, a preferred stimulus, and a tuning ...
Mirror neurons in monkey area F5 do not adapt to the observation of
... from IT cortex of anesthetized11 as well as of awake behaving monkeys9 have not been able to lend support to this latter hypothesis. Conceptually, an interesting question is whether adaptation to visual stimulation is confined to visual neurons located in striate and extrastriate visual cortex or whe ...
... from IT cortex of anesthetized11 as well as of awake behaving monkeys9 have not been able to lend support to this latter hypothesis. Conceptually, an interesting question is whether adaptation to visual stimulation is confined to visual neurons located in striate and extrastriate visual cortex or whe ...
working draft - DAVID KAPLAN | Macquarie University
... appear to reflect the complex interplay and interaction between the disciplines. The resulting picture is arguably one of methodological interdependence, not autonomy. Consequently, even if the ontological thesis that psychological states are (or can in principle be) multiply realized in different s ...
... appear to reflect the complex interplay and interaction between the disciplines. The resulting picture is arguably one of methodological interdependence, not autonomy. Consequently, even if the ontological thesis that psychological states are (or can in principle be) multiply realized in different s ...