What does the eye tell the brain? Development of a system for the large-scale recording of retinal output activity
... Index Terms—Analog integrated circuits, biomedical electrodes, image processing, neural networks, visual system. ...
... Index Terms—Analog integrated circuits, biomedical electrodes, image processing, neural networks, visual system. ...
Neuronal circuitries involved in thermoregulation
... After discovery of thermosensitive neurons in the hypothalamus (Nakayama et al., 1961) neurophysiologists investigating thermoregulation directed their efforts to the analysis of these thermosensitive neurons. Their (implicit) assumption was that thermosensitivity is a distinctive characteristic of ...
... After discovery of thermosensitive neurons in the hypothalamus (Nakayama et al., 1961) neurophysiologists investigating thermoregulation directed their efforts to the analysis of these thermosensitive neurons. Their (implicit) assumption was that thermosensitivity is a distinctive characteristic of ...
Combining electroencephalographic activity and
... [25,26], while relaxation techniques based on cardio-feedback are used for managing negative emotions and psychological symptoms [27,28]. A typical and paradigmatic brain–heart interaction occurs during an emotional experience. Human emotions involve several areas for their perception and processing ...
... [25,26], while relaxation techniques based on cardio-feedback are used for managing negative emotions and psychological symptoms [27,28]. A typical and paradigmatic brain–heart interaction occurs during an emotional experience. Human emotions involve several areas for their perception and processing ...
The Motor System of the Cortex and the Brain Stem
... Slide 5. Cells in PMv as a population appear to encode a movement in terms of a displacement vector with respect to the hand. Such cells are rare in the primary motor cortex (M1). In M1, most cells change their discharge as the configuration of the arm is changed, despite the fact that the cursor on ...
... Slide 5. Cells in PMv as a population appear to encode a movement in terms of a displacement vector with respect to the hand. Such cells are rare in the primary motor cortex (M1). In M1, most cells change their discharge as the configuration of the arm is changed, despite the fact that the cursor on ...
Current advances and pressing problems in studies of stopping
... choice response tasks accomplished with any effector system. The stop-signal task enables powerful, translational research because it can be studied with humans, monkeys, and even rats, employing behavioral [4!!,5,6], neurochemical [7], neurophysiological [8!!,9!!], electrophysiological [10,11], mag ...
... choice response tasks accomplished with any effector system. The stop-signal task enables powerful, translational research because it can be studied with humans, monkeys, and even rats, employing behavioral [4!!,5,6], neurochemical [7], neurophysiological [8!!,9!!], electrophysiological [10,11], mag ...
Changes in Resting State Effective Connectivity in the Motor
... the hemodynamic response measured by functional magnetic resonance imaging (fMRI). Spontaneous activity (i.e., resting state) refers to activity that cannot be attributed to specific inputs or outputs, that is, activity intrinsically generated by the brain. Method: This article presents pilot data e ...
... the hemodynamic response measured by functional magnetic resonance imaging (fMRI). Spontaneous activity (i.e., resting state) refers to activity that cannot be attributed to specific inputs or outputs, that is, activity intrinsically generated by the brain. Method: This article presents pilot data e ...
Commentary: Saccadic eye movements
... the control of visual fixation and saccadic eye movements. The superficial layers of the SC contain neurons that receive direct retinal inputs as well as inputs from other visual areas (Robinson and McClurkin, 1989). These visual neurons are organized into a visual map of the contralateral visual he ...
... the control of visual fixation and saccadic eye movements. The superficial layers of the SC contain neurons that receive direct retinal inputs as well as inputs from other visual areas (Robinson and McClurkin, 1989). These visual neurons are organized into a visual map of the contralateral visual he ...
Neurological Principles and Rehabilitation of Action Disorders
... discrepancies can develop between our motor plans and the actual sensory consequences of our actions. Feed-forward control provides a potential solution to this dilemma. In feed-forward control, motor commands are generated directly from the goal of the action (eg, grasping the cup) and other intern ...
... discrepancies can develop between our motor plans and the actual sensory consequences of our actions. Feed-forward control provides a potential solution to this dilemma. In feed-forward control, motor commands are generated directly from the goal of the action (eg, grasping the cup) and other intern ...
Control of movement direction - Cognitive Science Research Group
... In the introduction to this chapter, it was mentioned that a long–standing controversy in biological motor control is the question about whether muscle dynamics or movement kinematics are represented in the motor cortex (Kalaska et al., 1992; Johnson et al., 2001; Flash and Sejnowski, 2001). The deb ...
... In the introduction to this chapter, it was mentioned that a long–standing controversy in biological motor control is the question about whether muscle dynamics or movement kinematics are represented in the motor cortex (Kalaska et al., 1992; Johnson et al., 2001; Flash and Sejnowski, 2001). The deb ...
Chaos in the Brain. - Brain Dynamics Laboratory
... • The chaotic (or strange) attractor is a very complex object with a so-called fractal geometry. The dynamics corresponding to a strange attractor is deterministic chaos. • Chaotic dynamics can only be predicted for short time periods. • A chaotic system, although its dynamics is confined to the att ...
... • The chaotic (or strange) attractor is a very complex object with a so-called fractal geometry. The dynamics corresponding to a strange attractor is deterministic chaos. • Chaotic dynamics can only be predicted for short time periods. • A chaotic system, although its dynamics is confined to the att ...
Visuomotor development
... Another evolving research stream focuses on the use of computational modeling in an attempt to understand the mechanisms of adaptive behavior in autonomous agents (Arbib, 1987; Cliff, 1990). Research carried out on understanding simpler animals behavior indicated that all sensorimotor systems intera ...
... Another evolving research stream focuses on the use of computational modeling in an attempt to understand the mechanisms of adaptive behavior in autonomous agents (Arbib, 1987; Cliff, 1990). Research carried out on understanding simpler animals behavior indicated that all sensorimotor systems intera ...
Brain activity during non-automatic motor production of discrete multi
... associated with working memory, comparison, and response to þ/ cues. The TIMEPRESSURE contrast should therefore control for activity associated with these processes; because MOTOR involved only a simple motor response and no memory or comparison processes, however, the TIMEMOTOR contrast should o ...
... associated with working memory, comparison, and response to þ/ cues. The TIMEPRESSURE contrast should therefore control for activity associated with these processes; because MOTOR involved only a simple motor response and no memory or comparison processes, however, the TIMEMOTOR contrast should o ...
Changes in muscle coordination with training
... nature of the constraints imposed by the organization of the central nervous system on the changes in muscle coordination induced by training. It is argued that training invoked variations in the efficiency with which motor actions can be generated influence the stability of coordination by altering ...
... nature of the constraints imposed by the organization of the central nervous system on the changes in muscle coordination induced by training. It is argued that training invoked variations in the efficiency with which motor actions can be generated influence the stability of coordination by altering ...
Neurophysiological Mechanisms Underlying Auditory Image
... of neural activity. Thus, these methods are invaluable tools for localizing cognitive functions, and their application to issues of auditory imagery is described below. The temporal properties of neural responses in cognitive tasks are best captured by direct measures of the neural activity. The ele ...
... of neural activity. Thus, these methods are invaluable tools for localizing cognitive functions, and their application to issues of auditory imagery is described below. The temporal properties of neural responses in cognitive tasks are best captured by direct measures of the neural activity. The ele ...
Neural Substrate Expansion for the Restoration of Brain
... approaches is that they are performed in situ with respect to the brain, whether it is the injection of cells or viral vectors or the placement of electrode arrays. Directly interfacing with the brain is straightforward but has substantial limitations, including the inherent fragility of the brain a ...
... approaches is that they are performed in situ with respect to the brain, whether it is the injection of cells or viral vectors or the placement of electrode arrays. Directly interfacing with the brain is straightforward but has substantial limitations, including the inherent fragility of the brain a ...
Predicting voluntary movements from motor cortical activity with
... voluntary limb movements, and these signals can be recorded intra-cranially (i.e. from inside the skull) using invasive approaches [1]–[6]. Previous studies have shown that decoding this information efficiently allows for the real-time control of a computer screen cursor or technical devices with se ...
... voluntary limb movements, and these signals can be recorded intra-cranially (i.e. from inside the skull) using invasive approaches [1]–[6]. Previous studies have shown that decoding this information efficiently allows for the real-time control of a computer screen cursor or technical devices with se ...
Towards the utilization of EEG as a brain imaging tool
... Since its inception, the MEG community uses this topographic framework for the analysis of the signals. Instead of waveforms, the MEG community generally looks at the properties of the magnetic field outside the head and infers the sources and the temporal dynamics of these sources in the brain (Salm ...
... Since its inception, the MEG community uses this topographic framework for the analysis of the signals. Instead of waveforms, the MEG community generally looks at the properties of the magnetic field outside the head and infers the sources and the temporal dynamics of these sources in the brain (Salm ...
Sensory system evolution at the origin of craniates
... placodal sensory systems. Another noteworthy observation is that no neural crest and/or placodal-derived bipolar sensory neurons project to alar plate ¢rst- order multipolar neurons that are predominantly located within the craniate diencephalon. Such projections to ¢rst- order multipolar cell group ...
... placodal sensory systems. Another noteworthy observation is that no neural crest and/or placodal-derived bipolar sensory neurons project to alar plate ¢rst- order multipolar neurons that are predominantly located within the craniate diencephalon. Such projections to ¢rst- order multipolar cell group ...
Analysis and Classification of EEG signals using Mixture of
... or montage. A common standard for describing these position is the International 10/20 System. These methods are cheap and give a continuous record of brain activity with better ...
... or montage. A common standard for describing these position is the International 10/20 System. These methods are cheap and give a continuous record of brain activity with better ...
The Influence of the Respiratory Cycle on the EEG
... inhibitory effect of exspirium is probably mediated by an α2-adrenergic pathway from C1 neurons, which are excited during exspirium and the excitation of locus coeruleus in the course of inspirium originates from glutamate-mediated input from the nucleus paragigantocellularis within the medulla (Oya ...
... inhibitory effect of exspirium is probably mediated by an α2-adrenergic pathway from C1 neurons, which are excited during exspirium and the excitation of locus coeruleus in the course of inspirium originates from glutamate-mediated input from the nucleus paragigantocellularis within the medulla (Oya ...
Non-human primates in neuroscience research: The case against its
... resolve finer task-related spatial-temporal dynamics, thereby advancing our understanding of largescale cortical processes”; “has especially proven useful for advancing brain–computer interfacing (BCI) technology for decoding a user’s intentions to enhance or improve communication and control”; and ...
... resolve finer task-related spatial-temporal dynamics, thereby advancing our understanding of largescale cortical processes”; “has especially proven useful for advancing brain–computer interfacing (BCI) technology for decoding a user’s intentions to enhance or improve communication and control”; and ...
Location of the polysensory zone in the precentral gyrus
... the most effective of these stimuli. Visual responsiveness was tested with objects presented on a wand. To separate visual responses from tactile responses on the face, we also tested tactile responses in the dark. In previous experiments, we found that visual stimuli projected on a screen do not ac ...
... the most effective of these stimuli. Visual responsiveness was tested with objects presented on a wand. To separate visual responses from tactile responses on the face, we also tested tactile responses in the dark. In previous experiments, we found that visual stimuli projected on a screen do not ac ...
Physiological origins and functional correlates of EEG rhythmic
... mechanism have in fact been limited to anesthetized preparations and to in vitro studies in extracted tissue slice preparations. They have also focused on input to thalamic relay cells from cortex and nonspecific brain stem systems as the critical modulators of the rhythm-generating process. However ...
... mechanism have in fact been limited to anesthetized preparations and to in vitro studies in extracted tissue slice preparations. They have also focused on input to thalamic relay cells from cortex and nonspecific brain stem systems as the critical modulators of the rhythm-generating process. However ...