Preferred visually evoked spatial and temporal frequencies in
... Variations in light reflected from all parts of our physical world create an image that is represented and processed in our visual system. In mammals the visual cortex is essential for processing of visual input from the eyes. The region is divided into different areas and this study will focus on t ...
... Variations in light reflected from all parts of our physical world create an image that is represented and processed in our visual system. In mammals the visual cortex is essential for processing of visual input from the eyes. The region is divided into different areas and this study will focus on t ...
A Dynamic Field Theory of Visual Recognition in Infant Looking... Gregor Schöner Sammy Perone () and John P. Spencer ()
... the metrically distant test probe was presented first. Looking was computed as the number of time steps the looking node was above threshold on each trial. Note that fifty time steps equal one second. This time step to seconds mapping was chosen to effectively capture the hypothesized memory process ...
... the metrically distant test probe was presented first. Looking was computed as the number of time steps the looking node was above threshold on each trial. Note that fifty time steps equal one second. This time step to seconds mapping was chosen to effectively capture the hypothesized memory process ...
Chapter 5 Learning to attend in primary visual cortex
... many days (Kobatake et al. 1998; Schoups 2001; Schwartz et al 2002; Lee et al 2002; Furmanski et al 2004; Sigman and Gilbert 2005; Kourtzi et al 2005; Li et al 2008). To our knowledge, it has not yet been investigated if and how neuronal responses in the visual cortex change as a result of learning ...
... many days (Kobatake et al. 1998; Schoups 2001; Schwartz et al 2002; Lee et al 2002; Furmanski et al 2004; Sigman and Gilbert 2005; Kourtzi et al 2005; Li et al 2008). To our knowledge, it has not yet been investigated if and how neuronal responses in the visual cortex change as a result of learning ...
body proportions in infancy and early childhood
... communication because axons coated with myelin transmit neural impulses more quickly than unmyelinated axons. Kuther, Lifespan Development. © 2017, SAGE Publications. ...
... communication because axons coated with myelin transmit neural impulses more quickly than unmyelinated axons. Kuther, Lifespan Development. © 2017, SAGE Publications. ...
Proceedings of 2014 BMI the Third International Conference on
... behavioral level. Learning is known to be specific to the trained retinal location and orientation, which places important constraints on perceptual learning theories, many of which assume that perceptual learning occurs in the early visual areas that are retinotopic and orientation selective. Howev ...
... behavioral level. Learning is known to be specific to the trained retinal location and orientation, which places important constraints on perceptual learning theories, many of which assume that perceptual learning occurs in the early visual areas that are retinotopic and orientation selective. Howev ...
Thinking About Thinking
... brain slice thinks in the sense that it can process information and deliver an output from electrical stimulation of an input pathway, for example. Anyway, the mereological argument is not central to the argument of this book. For convenience, this book assumes that thinking is what brains do, and i ...
... brain slice thinks in the sense that it can process information and deliver an output from electrical stimulation of an input pathway, for example. Anyway, the mereological argument is not central to the argument of this book. For convenience, this book assumes that thinking is what brains do, and i ...
The Influence of Target Properties and the Possible
... of interest to another, allow us to interact with our visual environment. Latency and peak velocity are among the most studied parameters of saccades with their characteristics pretty well known. However, much less is known about how the possible lateralization of saccades and how target properties, ...
... of interest to another, allow us to interact with our visual environment. Latency and peak velocity are among the most studied parameters of saccades with their characteristics pretty well known. However, much less is known about how the possible lateralization of saccades and how target properties, ...
Towards an Understanding of Parkinson's Disease
... Dr James Parkinson (1755 – 1824) Essay on the Shaking Palsy “….involuntary tremulous motion, with lessened muscular power, in parts not in action …… with a propensity to bend the trunk forward, and to pass from a walking to a running pace …… the senses and intellect being uninjured.” ...
... Dr James Parkinson (1755 – 1824) Essay on the Shaking Palsy “….involuntary tremulous motion, with lessened muscular power, in parts not in action …… with a propensity to bend the trunk forward, and to pass from a walking to a running pace …… the senses and intellect being uninjured.” ...
Trial and Error – Optogenetic techniques offer insight into the
... that dopamine neurons use simple subtraction (9) [see the figure (B)]. Although this arithmetic is assumed in computational models, it is remarkably rare in the brain; division is much more common, as exemplified by gain control in sensory systems. However, subtraction is an ideal calculation becaus ...
... that dopamine neurons use simple subtraction (9) [see the figure (B)]. Although this arithmetic is assumed in computational models, it is remarkably rare in the brain; division is much more common, as exemplified by gain control in sensory systems. However, subtraction is an ideal calculation becaus ...
emotional learning: a computational model of the amygdala
... initial reaction can subsequently be modulated by the higher sensory areas. Similar connections from the lateral geniculate nucleus through which visual information travels have not been reported. There are also connections from the ventroposterior medial nucleus of the thalamus that contains ¢bers ...
... initial reaction can subsequently be modulated by the higher sensory areas. Similar connections from the lateral geniculate nucleus through which visual information travels have not been reported. There are also connections from the ventroposterior medial nucleus of the thalamus that contains ¢bers ...
The dynamic spatio-temporal behavior of visual responses in
... cannot be described merely by using the mean impulse rate and we will discuss their possible influence on visual information processing. Then, we will show that the response characteristics of thalamic and cortical cells can change rather strongly in a way correlated with the global state of the bra ...
... cannot be described merely by using the mean impulse rate and we will discuss their possible influence on visual information processing. Then, we will show that the response characteristics of thalamic and cortical cells can change rather strongly in a way correlated with the global state of the bra ...
Different Stimuli, Different Spatial Codes: A Visual Map and an
... Maps are a mainstay of visual, somatosensory, and motor coding in many species. However, auditory maps of space have not been reported in the primate brain. Instead, recent studies have suggested that sound location may be encoded via broadly responsive neurons whose firing rates vary roughly propor ...
... Maps are a mainstay of visual, somatosensory, and motor coding in many species. However, auditory maps of space have not been reported in the primate brain. Instead, recent studies have suggested that sound location may be encoded via broadly responsive neurons whose firing rates vary roughly propor ...
2. Organization of the Exam and Assessment Criteria
... 35. Attention and pre-attention. Correlates of attention and pre-attention in evoked potentials mismatch negativity, P300. Attentional networks (systems). Mechanisms of voluntary and involuntary attention. 36. Psychophysiology of memory and learning. Neuronal mechanisms of long-term and short-term m ...
... 35. Attention and pre-attention. Correlates of attention and pre-attention in evoked potentials mismatch negativity, P300. Attentional networks (systems). Mechanisms of voluntary and involuntary attention. 36. Psychophysiology of memory and learning. Neuronal mechanisms of long-term and short-term m ...
The Impact of Prior Experience With Cross-Modal
... modality specific and cross-modal stimuli. Neurons responsible for MI may not exhibit this function until experience dictates the need to do so; for instance, after an animal experiences multimodal stimuli. If cells in the intSC do not necessarily have to do MI, neural activity in intSC evoked by mu ...
... modality specific and cross-modal stimuli. Neurons responsible for MI may not exhibit this function until experience dictates the need to do so; for instance, after an animal experiences multimodal stimuli. If cells in the intSC do not necessarily have to do MI, neural activity in intSC evoked by mu ...
Anatomical Changes in Human Motor Cortex and Motor Pathways
... Using Statistical Parametric Mapping (SPM; Friston et al. 1995), the 3 T1weighted images from each subject were coregistered and averaged. The averaged image was bias corrected using the SPM5 unified segmentation (Ashburner and Friston 2005). The bias-corrected images were segmented and spatially nor ...
... Using Statistical Parametric Mapping (SPM; Friston et al. 1995), the 3 T1weighted images from each subject were coregistered and averaged. The averaged image was bias corrected using the SPM5 unified segmentation (Ashburner and Friston 2005). The bias-corrected images were segmented and spatially nor ...
Neural basis of sensorimotor learning: modifying
... The simplest learning tasks are related to the classical notion that sensorimotor learning involves the generation of new associations between stimuli (S) and responses (R). Obviously we could learn to stop for a green light instead of a red one. Learning a new arbitrary association changes the cate ...
... The simplest learning tasks are related to the classical notion that sensorimotor learning involves the generation of new associations between stimuli (S) and responses (R). Obviously we could learn to stop for a green light instead of a red one. Learning a new arbitrary association changes the cate ...
2. Organization of the Exam and Assessment Criteria
... 35. Attention and pre-attention. Correlates of attention and pre-attention in evoked potentials mismatch negativity, P300. Attentional networks (systems). Mechanisms of voluntary and involuntary attention. 36. Psychophysiology of memory and learning. Neuronal mechanisms of long-term and short-term m ...
... 35. Attention and pre-attention. Correlates of attention and pre-attention in evoked potentials mismatch negativity, P300. Attentional networks (systems). Mechanisms of voluntary and involuntary attention. 36. Psychophysiology of memory and learning. Neuronal mechanisms of long-term and short-term m ...
PDF
... Abstract: A wealth of research focuses on the decision-making processes that animals and humans employ when selecting actions in the face of reward and punishment. Initially such work stemmed from psychological investigations of conditioned behavior, and explanations of these in terms of computation ...
... Abstract: A wealth of research focuses on the decision-making processes that animals and humans employ when selecting actions in the face of reward and punishment. Initially such work stemmed from psychological investigations of conditioned behavior, and explanations of these in terms of computation ...
Glossary - Baars and Gage
... persistent pattern of impulsiveness and difficulty with sustained attention, with or without a component of hyperactivity. There is some debate whether it is a genuine disorder or a normal adaptation that may be problematic today. It affects 3 to 5% of children around the world and continues ...
... persistent pattern of impulsiveness and difficulty with sustained attention, with or without a component of hyperactivity. There is some debate whether it is a genuine disorder or a normal adaptation that may be problematic today. It affects 3 to 5% of children around the world and continues ...
Time perception
Time perception is a field of study within psychology and neuroscience that refers to the subjective experience of time, which is measured by someone's own perception of the duration of the indefinite and continuous unfolding of events. The perceived time interval between two successive events is referred to as perceived duration. Another person's perception of time cannot be directly experienced or understood, but it can be objectively studied and inferred through a number of scientific experiments. Time perception is a construction of the brain that is manipulable and distortable under certain circumstances. These temporal illusions help to expose the underlying neural mechanisms of time perception.Pioneering work, emphasizing species-specific differences, was conducted by Karl Ernst von Baer. Experimental work began under the influence of the psycho-physical notions of Gustav Theodor Fechner with studies of the relationship between perceived and measured time.