Spatio-temporal dynamics of depth propagation on uniform region
... center figures are used for cross-eyed viewing, and right and center for parallel viewing (although the three bars are exactly the same as those in A). ...
... center figures are used for cross-eyed viewing, and right and center for parallel viewing (although the three bars are exactly the same as those in A). ...
Representation of Movement
... beetles (Figure 1(b)). The Reichardt detector is best stimulated by spatial wavelengths four times the separation of the input channels, since this leads to a 90 phase difference between the intensity variations at the two inputs (spatial quadrature). Further, for wavelengths less than twice the in ...
... beetles (Figure 1(b)). The Reichardt detector is best stimulated by spatial wavelengths four times the separation of the input channels, since this leads to a 90 phase difference between the intensity variations at the two inputs (spatial quadrature). Further, for wavelengths less than twice the in ...
A Symmetric Approach Elucidates Multisensory Information Integration
... cortex (secondary visual cortex) is arranged in two streams, devoted to the control of action and objects perception. Processing channels, each serving simultaneously specialized functions, are also present in the central auditory and somatosensory systems. The message is then conveyed from unimodal ...
... cortex (secondary visual cortex) is arranged in two streams, devoted to the control of action and objects perception. Processing channels, each serving simultaneously specialized functions, are also present in the central auditory and somatosensory systems. The message is then conveyed from unimodal ...
Principles of Neural Science
... physiology examined the neural consequences of a stimulus—how the stimulus is transduced by sensory receptors and processed in the brain. Some of the most exciting advances in our understanding of perception have come from merging these two approaches in, for example, recent human experiments that u ...
... physiology examined the neural consequences of a stimulus—how the stimulus is transduced by sensory receptors and processed in the brain. Some of the most exciting advances in our understanding of perception have come from merging these two approaches in, for example, recent human experiments that u ...
Motor Cognition and Mental Simulation
... representations when we observe a movement or an action and when we produce the corresponding movement or action ourselves. The existence of these shared representations suggests that mental simulations are particularly useful for reasoning about possible actions that you or someone else could take. ...
... representations when we observe a movement or an action and when we produce the corresponding movement or action ourselves. The existence of these shared representations suggests that mental simulations are particularly useful for reasoning about possible actions that you or someone else could take. ...
T2 - Center for Neural Basis of Cognition
... Extrastriate Summary Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active ...
... Extrastriate Summary Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active ...
Neural Correlates for Perception of 3D Surface Orientation from
... disparity signals have been found in the parietal (11, 12) and temporal (13, 14) association cortices. However, binocular disparity is not the only cue for depth perception, because we can perceive depth even with one eye closed. Gibson (15) has proposed that texture gradient is an important cue for ...
... disparity signals have been found in the parietal (11, 12) and temporal (13, 14) association cortices. However, binocular disparity is not the only cue for depth perception, because we can perceive depth even with one eye closed. Gibson (15) has proposed that texture gradient is an important cue for ...
(2006) Changes in visual receptive fields with microstimulation of
... has been described in terms of its effect on the structure of receptive fields (RFs), where multiple stimuli compete to drive neural responses and ultimately behavior. We stimulated the frontal eye field (FEF) of passively fixating monkeys and produced changes in V4 responses similar to known effect ...
... has been described in terms of its effect on the structure of receptive fields (RFs), where multiple stimuli compete to drive neural responses and ultimately behavior. We stimulated the frontal eye field (FEF) of passively fixating monkeys and produced changes in V4 responses similar to known effect ...
The Receptive Fields of Inferior Temporal Cortex Neurons in Natural
... had to make up to eight saccades before its search found the target. There was no clear pattern to these saccades, and it was only when a saccade landed near the object that the monkey reached to touch the object if it was the target of the search. In the blank scene, often one saccade was sufficien ...
... had to make up to eight saccades before its search found the target. There was no clear pattern to these saccades, and it was only when a saccade landed near the object that the monkey reached to touch the object if it was the target of the search. In the blank scene, often one saccade was sufficien ...
Visual behaviour mediated by retinal projections directed to the
... visual cortex: cells in rewired Al display visual properties such as orientation selectivity and direction selectivity7, and they encode a two-dimensional map of visual space6 and of orientation-selective cells19. We investigated whether activation of the crossmodal projection evokes visual or audit ...
... visual cortex: cells in rewired Al display visual properties such as orientation selectivity and direction selectivity7, and they encode a two-dimensional map of visual space6 and of orientation-selective cells19. We investigated whether activation of the crossmodal projection evokes visual or audit ...
Investigation of the central regulation of taste perception and
... examination data, 11 AN patients, ten women and one man (BMI: 16.7±1.6; age: mean 23.3 years) and 11 age-matched healthy control subjects, nine women and two men (BMI: 22.8±1.9; age: mean 24 years) participated in these experiments. All the volunteers were screened with the EAT-40 test and the EDI t ...
... examination data, 11 AN patients, ten women and one man (BMI: 16.7±1.6; age: mean 23.3 years) and 11 age-matched healthy control subjects, nine women and two men (BMI: 22.8±1.9; age: mean 24 years) participated in these experiments. All the volunteers were screened with the EAT-40 test and the EDI t ...
Chapter 10
... regions of the motor homunculus are involved in activating motor neurons the arms, hands, and legs primarily on the ________, while the trunk the motor homunculus are primarily involved in activating motor neurons the trunk primarily on the _________. ...
... regions of the motor homunculus are involved in activating motor neurons the arms, hands, and legs primarily on the ________, while the trunk the motor homunculus are primarily involved in activating motor neurons the trunk primarily on the _________. ...
Cross modality matching of brightness and loudness
... modality. There are individuals who experience unique and curious forms of synesthesia, such as the philosopher Ludwig Wittgenstein to whom the vowel e was the color yellow (Ward, 2013). Over a century of research has proven that while synesthesia is peculiar, there are certain types of synesthesia ...
... modality. There are individuals who experience unique and curious forms of synesthesia, such as the philosopher Ludwig Wittgenstein to whom the vowel e was the color yellow (Ward, 2013). Over a century of research has proven that while synesthesia is peculiar, there are certain types of synesthesia ...
Cerebral Cortex
... The “delayed response test” has classically been a used to evaluate prefrontal function, eg. after brief delay period, food reward changes compartments Lesions result in perseveration. Cannot alter behavioral strategy. ...
... The “delayed response test” has classically been a used to evaluate prefrontal function, eg. after brief delay period, food reward changes compartments Lesions result in perseveration. Cannot alter behavioral strategy. ...
The Nervous System: Sensory and Motor Tracts of the Spinal Cord
... Anterior Spinothalamic Tract A Sensory Homunculus A sensory homunculus (“little human”) is a functional map of the primary sensory cortex. The proportions are very different from those of the individual because the area of sensory cortex devoted to a particular body region is proportional to the num ...
... Anterior Spinothalamic Tract A Sensory Homunculus A sensory homunculus (“little human”) is a functional map of the primary sensory cortex. The proportions are very different from those of the individual because the area of sensory cortex devoted to a particular body region is proportional to the num ...
Three key sequences HDEV
... the response to pain has become more specific. An older the entire length of the embryo. The brain develops more child or adult is also likely to withdraw the finger, but less rapidly than the spinal cord. Arm buds form before leg likely to wail (sometimes) and show general distress. buds. Most newb ...
... the response to pain has become more specific. An older the entire length of the embryo. The brain develops more child or adult is also likely to withdraw the finger, but less rapidly than the spinal cord. Arm buds form before leg likely to wail (sometimes) and show general distress. buds. Most newb ...
The Nervous System: Sensory and Motor Tracts of the Spinal Cord
... • Anterior corticospinal tracts: conscious control ...
... • Anterior corticospinal tracts: conscious control ...
Auditory Hallucinations as a Separate Entitity
... types of sensation transmission in the brain (hearing, vision). How do we get the meaning of the sound? The auditory association area in the parietal portion associates sound information to each other and with sensory information from other areas of the cortex. How can we identify the source of soun ...
... types of sensation transmission in the brain (hearing, vision). How do we get the meaning of the sound? The auditory association area in the parietal portion associates sound information to each other and with sensory information from other areas of the cortex. How can we identify the source of soun ...
Words and pictures in the left fusiform gyrus
... The focus of the present paper is limited to the suggested role of the VWFA in visual processing. As noted by McCandliss et al. (2003 p.294) “there is ample evidence that object and face recognition can also activate this area to varying degrees”, and, as pointed out by Price and Devlin (2004), stud ...
... The focus of the present paper is limited to the suggested role of the VWFA in visual processing. As noted by McCandliss et al. (2003 p.294) “there is ample evidence that object and face recognition can also activate this area to varying degrees”, and, as pointed out by Price and Devlin (2004), stud ...
Temporal and spatial neural dynamics in the perception of basic
... our current understanding of emotions can also yield new discoveries about how emotions are represented in the brain, and can help to reconcile seemingly contradictory neuroimaging findings. In fact, the function of a given brain area is partly determined by the network of other regions it is firing ...
... our current understanding of emotions can also yield new discoveries about how emotions are represented in the brain, and can help to reconcile seemingly contradictory neuroimaging findings. In fact, the function of a given brain area is partly determined by the network of other regions it is firing ...
Purves ch. 8 + Kandel ch. 23 - Weizmann Institute of Science
... Four major types of encapsulated mechanoreceptors are specialized to provide information to the central nervous system about touch, pressure, vibration, and cutaneous tension: Meissner’s corpuscles, Pacinian corpuscles, Merkel’s disks, and Ruffini’s corpuscles (Figure 8.3 and Table 8.1). These recep ...
... Four major types of encapsulated mechanoreceptors are specialized to provide information to the central nervous system about touch, pressure, vibration, and cutaneous tension: Meissner’s corpuscles, Pacinian corpuscles, Merkel’s disks, and Ruffini’s corpuscles (Figure 8.3 and Table 8.1). These recep ...
Watching synapses during sensory information
... of two-photon microscopy may help to answer whether this salt-and-pepper like organization also exists in deeper cortical layers or even in subcortical brain regions. In addition, further studies should also be performed to understand what happens in different cell types and in different species. A ...
... of two-photon microscopy may help to answer whether this salt-and-pepper like organization also exists in deeper cortical layers or even in subcortical brain regions. In addition, further studies should also be performed to understand what happens in different cell types and in different species. A ...
Peripheral Nervous System - cK-12
... The motor division of the peripheral system carries messages from the central nervous system to internal organs and muscles. The motor division is also divided into two parts (Figure 1.4), the somatic nervous system and the autonomic nervous system. The somatic nervous system carries messages that c ...
... The motor division of the peripheral system carries messages from the central nervous system to internal organs and muscles. The motor division is also divided into two parts (Figure 1.4), the somatic nervous system and the autonomic nervous system. The somatic nervous system carries messages that c ...
Specialization within the ventral stream: The case for the visual word
... stances. Their argument relies almost exclusively on the overlap of data from different groups of subjects scanned with PET. However, such data are typically generated with a spatial smoothness of 15 mm in PET group studies. In this context, the finding of overlap between word-related and non-word-r ...
... stances. Their argument relies almost exclusively on the overlap of data from different groups of subjects scanned with PET. However, such data are typically generated with a spatial smoothness of 15 mm in PET group studies. In this context, the finding of overlap between word-related and non-word-r ...
Perception
""Percept"", ""perceptual"", ""perceptible"" and ""imperceptible"" redirect here. For the Brian Blade album, see Perceptual (album). For the perceptibility of digital watermarks, see Digital watermarking#Perceptibility. For other uses, see Perception (disambiguation) and Percept (disambiguation).Perception (from the Latin perceptio, percipio) is the organization, identification, and interpretation of sensory information in order to represent and understand the environment. All perception involves signals in the nervous system, which in turn result from physical or chemical stimulation of the sense organs. For example, vision involves light striking the retina of the eye, smell is mediated by odor molecules, and hearing involves pressure waves. Perception is not the passive receipt of these signals, but is shaped by learning, memory, expectation, and attention.Perception can be split into two processes Firstly processing sensory input which transforms these low-level information to higher-level information (e.g., extracts shapes for object recognition). Secondly processing which is connected with person's concept and expectations (knowledge), and selective mechanisms (attention) that influence perception.Perception depends on complex functions of the nervous system, but subjectively seems mostly effortless because this processing happens outside conscious awareness.Since the rise of experimental psychology in the 19th Century, psychology's understanding of perception has progressed by combining a variety of techniques. Psychophysics quantitatively describes the relationships between the physical qualities of the sensory input and perception. Sensory neuroscience studies the brain mechanisms underlying perception. Perceptual systems can also be studied computationally, in terms of the information they process. Perceptual issues in philosophy include the extent to which sensory qualities such as sound, smell or color exist in objective reality rather than in the mind of the perceiver.Although the senses were traditionally viewed as passive receptors, the study of illusions and ambiguous images has demonstrated that the brain's perceptual systems actively and pre-consciously attempt to make sense of their input. There is still active debate about the extent to which perception is an active process of hypothesis testing, analogous to science, or whether realistic sensory information is rich enough to make this process unnecessary.The perceptual systems of the brain enable individuals to see the world around them as stable, even though the sensory information is typically incomplete and rapidly varying. Human and animal brains are structured in a modular way, with different areas processing different kinds of sensory information. Some of these modules take the form of sensory maps, mapping some aspect of the world across part of the brain's surface. These different modules are interconnected and influence each other. For instance, taste is strongly influenced by smell.