reviews - Center for Complex Systems and Brain Sciences
... site of recording30, or is anaesthetized31. In addition, several psychophysical studies, as well as introspection, indicate that we are not blind to the world outside the focus of attention. Thus we can make simple judgments on objects to which we are not attending32, although those judgments are li ...
... site of recording30, or is anaesthetized31. In addition, several psychophysical studies, as well as introspection, indicate that we are not blind to the world outside the focus of attention. Thus we can make simple judgments on objects to which we are not attending32, although those judgments are li ...
On real-world temporal pattern recognition using Liquid State
... not possess real memory. These methods provide only a direct mapping from input to output. In their basic form they are therefore unsuited for temporal pattern recognition. However, we can patch these techniques up by simply combining various stills into a bigger picture: an input window that hopefu ...
... not possess real memory. These methods provide only a direct mapping from input to output. In their basic form they are therefore unsuited for temporal pattern recognition. However, we can patch these techniques up by simply combining various stills into a bigger picture: an input window that hopefu ...
Estrogen Actions Throughout the Brain
... neurons, and the basal forebrain cholinergic system as well as the hippocampal formation, a brain region involved in spatial and declarative memory. Thus, ovarian steroids have measurable effects on affective state as well as cognition, with implications for dementia. Two actions are discussed in th ...
... neurons, and the basal forebrain cholinergic system as well as the hippocampal formation, a brain region involved in spatial and declarative memory. Thus, ovarian steroids have measurable effects on affective state as well as cognition, with implications for dementia. Two actions are discussed in th ...
Sleep Spindles as Facilitators of Memory Formation and Learning
... Figure 2: (a) Experimental approach for studying the role of spindles in synaptic plasticity. Spindle discharge patterns were used to trigger excitatory postsynaptic potentials (EPSPs) in pyramidal neurons. The same spindle trains were used to elicit action potentials in the soma. (b) Sample traces ...
... Figure 2: (a) Experimental approach for studying the role of spindles in synaptic plasticity. Spindle discharge patterns were used to trigger excitatory postsynaptic potentials (EPSPs) in pyramidal neurons. The same spindle trains were used to elicit action potentials in the soma. (b) Sample traces ...
Anticipated synchronization in neuronal circuits
... master’s dynamics unperturbed and change just the slave’s couplings. In this Thesis we will deal with the former case. 1.1.1 Physical systems When Voss introduced the concept of AS, he proposed that it would open new avenues in the study, prediction and control of chaotic systems [4, 6, 5]. Indeed, ...
... master’s dynamics unperturbed and change just the slave’s couplings. In this Thesis we will deal with the former case. 1.1.1 Physical systems When Voss introduced the concept of AS, he proposed that it would open new avenues in the study, prediction and control of chaotic systems [4, 6, 5]. Indeed, ...
Changes of Synaptic Density in the Primary Visual Cortex of the
... Ages in days after conception are presented in the first column. Embryonic (E) and postnatal (P) ages (after birth) in days are presented in the second column. mative data on the time course of synaptic development in the visual cortex during the entire pre- and postnatal periods in the rhesus monke ...
... Ages in days after conception are presented in the first column. Embryonic (E) and postnatal (P) ages (after birth) in days are presented in the second column. mative data on the time course of synaptic development in the visual cortex during the entire pre- and postnatal periods in the rhesus monke ...
Biology and Behavior
... Original Content Copyright by HOLT McDougal. Additions and changes to the original content are the responsibility of the instructor. ...
... Original Content Copyright by HOLT McDougal. Additions and changes to the original content are the responsibility of the instructor. ...
Deficits of brainstem and spinal cord functions after
... do not know whether neurons of the central pattern generator for respiration are affected by HI. Brainstem involvement in hypoxic or hypotensive brain damage is acknowledged, and infants with birth asphyxia have respiratory failure and are more vulnerable to sudden death syndrome (18). Then, we weig ...
... do not know whether neurons of the central pattern generator for respiration are affected by HI. Brainstem involvement in hypoxic or hypotensive brain damage is acknowledged, and infants with birth asphyxia have respiratory failure and are more vulnerable to sudden death syndrome (18). Then, we weig ...
Mapping the Structural Core of Human Cerebral Cortex
... neurons that are organized into a complex network of local circuits and long-range fiber pathways. This complex network forms the structural substrate for distributed interactions among specialized brain systems [1–3]. Computational network analysis [4] has provided insight into the organization of l ...
... neurons that are organized into a complex network of local circuits and long-range fiber pathways. This complex network forms the structural substrate for distributed interactions among specialized brain systems [1–3]. Computational network analysis [4] has provided insight into the organization of l ...
Mapping the Structural Core of Human Cerebral Cortex
... neurons that are organized into a complex network of local circuits and long-range fiber pathways. This complex network forms the structural substrate for distributed interactions among specialized brain systems [1–3]. Computational network analysis [4] has provided insight into the organization of l ...
... neurons that are organized into a complex network of local circuits and long-range fiber pathways. This complex network forms the structural substrate for distributed interactions among specialized brain systems [1–3]. Computational network analysis [4] has provided insight into the organization of l ...
Corticofugal modulation of functional connectivity within the auditory
... patterns of reverberating thalamic circuits. As a complementary approach we performed bispectral analyses of simultaneously recorded local field potentials in order to uncover the frequency components of their power spectra which are non linearly coupled. All results suggest that new functional neur ...
... patterns of reverberating thalamic circuits. As a complementary approach we performed bispectral analyses of simultaneously recorded local field potentials in order to uncover the frequency components of their power spectra which are non linearly coupled. All results suggest that new functional neur ...
Hemispheric Differences in the Activation of
... hemispheric differences when the perceptual form of objects was altered on repeated presentation using a visual half-field technique in combination with a repetition priming procedure (Marsolek, 1995, 1999). In one study (Marsolek, 1999), participants viewed objects presented centrally in a study ph ...
... hemispheric differences when the perceptual form of objects was altered on repeated presentation using a visual half-field technique in combination with a repetition priming procedure (Marsolek, 1995, 1999). In one study (Marsolek, 1999), participants viewed objects presented centrally in a study ph ...
PDF
... One of the first actor –critic models of the basal ganglia was presented by Houk et al. (1995). This model suggests that striosomal modules fulfill the main functions of the adaptive critic, whereas matrix modules function as an actor. Striosomal modules comprise of striatal striosomes, subthalamic ...
... One of the first actor –critic models of the basal ganglia was presented by Houk et al. (1995). This model suggests that striosomal modules fulfill the main functions of the adaptive critic, whereas matrix modules function as an actor. Striosomal modules comprise of striatal striosomes, subthalamic ...
Chapter 15 Perceptual Development
... If these sensory experiences were merely a confusing mess, should not infants seek quiet? Yes, they sleep a lot but they also just stare around actively. The problem is how to study the sensory abilities of infants. The psychophysical methods discussed in Chapter 2 will not work, at least as describ ...
... If these sensory experiences were merely a confusing mess, should not infants seek quiet? Yes, they sleep a lot but they also just stare around actively. The problem is how to study the sensory abilities of infants. The psychophysical methods discussed in Chapter 2 will not work, at least as describ ...
Noise in Neurons and Other Constraints
... Since signals can easily be lost, and noise easily added, this sets a one-sided limit on how well information can be represented – as measured by the signal-to-noise ratio. In many situations noise can be thought of as additive effect on a signal. It is reasonable to assume that a major feature of n ...
... Since signals can easily be lost, and noise easily added, this sets a one-sided limit on how well information can be represented – as measured by the signal-to-noise ratio. In many situations noise can be thought of as additive effect on a signal. It is reasonable to assume that a major feature of n ...
Retrieval induces adaptive forgetting of competing memories via
... traces, providing a window into the suppression process thought to underlie adaptive forgetting in the human brain. Our effort to observe the dynamics of adaptive forgetting builds on work examining the neural processes associated with retrieval competition. One approach used multi-voxel pattern ana ...
... traces, providing a window into the suppression process thought to underlie adaptive forgetting in the human brain. Our effort to observe the dynamics of adaptive forgetting builds on work examining the neural processes associated with retrieval competition. One approach used multi-voxel pattern ana ...
Neurophysiological bases underlying the organization of intentional
... intentionality in such a way, suggesting that the intention of doing a certain act is something that precedes its actual motor execution, and that it is usually associated with the conscious experience of ‘agency’. Wittgenstein (1953) already envisioned the complexity of this issue by posing the que ...
... intentionality in such a way, suggesting that the intention of doing a certain act is something that precedes its actual motor execution, and that it is usually associated with the conscious experience of ‘agency’. Wittgenstein (1953) already envisioned the complexity of this issue by posing the que ...
Visual Motion-Detection Circuits in Flies: Small
... distilled water. The brains were dehydrated, embedded in soft Durcupan (Fluka, Mannheim, Germany), and serially sectioned at 30 mm. Reduced silver staining. Tissue was fixed either in Gregory’s (1980) synthetically aged Bouin’s solution or in acetic acid–alcohol formalin. After fixation, the heads w ...
... distilled water. The brains were dehydrated, embedded in soft Durcupan (Fluka, Mannheim, Germany), and serially sectioned at 30 mm. Reduced silver staining. Tissue was fixed either in Gregory’s (1980) synthetically aged Bouin’s solution or in acetic acid–alcohol formalin. After fixation, the heads w ...
Is there a difference in memory decay for different
... Episodic memory is personal memory which they can know when and where they did something; “ I studied English for two hours in my room” In short, it is memory of experiments in their life and it is memorized naturally. “I studied English for two hours yesterday.” This is episodic memory as defined b ...
... Episodic memory is personal memory which they can know when and where they did something; “ I studied English for two hours in my room” In short, it is memory of experiments in their life and it is memorized naturally. “I studied English for two hours yesterday.” This is episodic memory as defined b ...
BIO 210 Course Outline
... XIII. Higher-order functions A. Explain how memories are created, stored and recalled. B. Distinguish between levels of consciousness and unconsciousness. C. Identify the characteristics of brain activity associated with the different levels of sleep and explain their importance. XIV. Special senses ...
... XIII. Higher-order functions A. Explain how memories are created, stored and recalled. B. Distinguish between levels of consciousness and unconsciousness. C. Identify the characteristics of brain activity associated with the different levels of sleep and explain their importance. XIV. Special senses ...
Multiplicative Gain Changes Are Induced by Excitation or Inhibition
... AMPA conductance is not voltage dependent, this implies another mechanism of gain change. We next simulated the iontophoresis of inhibitory drugs binding to GABAA or GABAB receptors. In both cases, the firing rate of the model neuron was reduced at all contrasts. A constant 2.0 nS GABAA conductance ...
... AMPA conductance is not voltage dependent, this implies another mechanism of gain change. We next simulated the iontophoresis of inhibitory drugs binding to GABAA or GABAB receptors. In both cases, the firing rate of the model neuron was reduced at all contrasts. A constant 2.0 nS GABAA conductance ...
PVLV: The Primary Value and Learned Value
... the relationship between a CS and a subsequent US is not always very reliable, and having separate PV and LV systems enables the system to be very robust to such variability. In contrast, the chaining mechanism present in the TD algorithm is designed to work optimally when there is a very reliable s ...
... the relationship between a CS and a subsequent US is not always very reliable, and having separate PV and LV systems enables the system to be very robust to such variability. In contrast, the chaining mechanism present in the TD algorithm is designed to work optimally when there is a very reliable s ...
Applied Mathematics and Computation 215
... object—the halting set of inputs on which its computations terminate—appearing over the years in many different guises. But in what sense is such an object computed? Why does it matter? A short answer is that it is computed much as the Mandelbrot set appears on a computer screen. It is computably e ...
... object—the halting set of inputs on which its computations terminate—appearing over the years in many different guises. But in what sense is such an object computed? Why does it matter? A short answer is that it is computed much as the Mandelbrot set appears on a computer screen. It is computably e ...
Intermediate
... Other Types of Columns Besides ocular dominance and orientation columns, several other types of columns are also present in the visual cortex. The most fundamental of these are what might be called position columns. Neurons in V1 have small receptive fields localized at specific positions in visual ...
... Other Types of Columns Besides ocular dominance and orientation columns, several other types of columns are also present in the visual cortex. The most fundamental of these are what might be called position columns. Neurons in V1 have small receptive fields localized at specific positions in visual ...