Activity of Neurons in Anterior Inferior Temporal Cortex during a
... analysis of variance (ANOVA) and t tests, evaluated at the p < 0.05 level of significance. However, the fact that a response difference is statistically significant does not, in itself, indicate how potentially useful the difference is in discriminating among the stimuli. We were particularly intere ...
... analysis of variance (ANOVA) and t tests, evaluated at the p < 0.05 level of significance. However, the fact that a response difference is statistically significant does not, in itself, indicate how potentially useful the difference is in discriminating among the stimuli. We were particularly intere ...
Development of Pitch and Music Perception
... that capitalize on features of the auditory system; therefore, these elements could be fairly easy to learn and might develop relatively early. On the other hand, features that are specific to one musical system might reflect more mature ways of processing and, therefore, require more experience and ...
... that capitalize on features of the auditory system; therefore, these elements could be fairly easy to learn and might develop relatively early. On the other hand, features that are specific to one musical system might reflect more mature ways of processing and, therefore, require more experience and ...
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... tones was fixed for each animal (5, 7.5, and 15 pps, n ⫽ 4, 2, and 4 rats, respectively). All tones had 3-ms onset and offset ramps. The tones paired with BF stimulation were 250 ms in duration except for the tone trains that were composed of 25-ms tones. To establish the specificity of BF pairing, ...
... tones was fixed for each animal (5, 7.5, and 15 pps, n ⫽ 4, 2, and 4 rats, respectively). All tones had 3-ms onset and offset ramps. The tones paired with BF stimulation were 250 ms in duration except for the tone trains that were composed of 25-ms tones. To establish the specificity of BF pairing, ...
5. Third year activities - LIRA-Lab
... conditions characterized by varying amounts of visual feedback to measure the degree of modulation of area F5 as a function of the amount of visual information. Experiments on the development of visuo-motor coordination in infants were also performed (e.g. grasping a rotating object in 6 and 10 mont ...
... conditions characterized by varying amounts of visual feedback to measure the degree of modulation of area F5 as a function of the amount of visual information. Experiments on the development of visuo-motor coordination in infants were also performed (e.g. grasping a rotating object in 6 and 10 mont ...
STRUCTURE AND FUNCTION OF VISUAL AREA MT
... nature of the retinal inputs to K1,2 is not known, though their response properties are W-like in the galago (Irvin et al. 1986). Also, the proposed input to MT from the SC via the pulvinar is rendered problematic by the finding that, in owl monkey pulvinar, the principle target of SC terminals (PICM ...
... nature of the retinal inputs to K1,2 is not known, though their response properties are W-like in the galago (Irvin et al. 1986). Also, the proposed input to MT from the SC via the pulvinar is rendered problematic by the finding that, in owl monkey pulvinar, the principle target of SC terminals (PICM ...
this publication in PDF format
... reflecting top-down influences on the perceptual stages of processing. In contrast, changes in the acoustic structure of the target chord (sensory consonance) mainly modulate the amplitude of a late positive component that develops between 300 and 800 msec after target onset. Most importantly, the e ...
... reflecting top-down influences on the perceptual stages of processing. In contrast, changes in the acoustic structure of the target chord (sensory consonance) mainly modulate the amplitude of a late positive component that develops between 300 and 800 msec after target onset. Most importantly, the e ...
Structure and Function of Visual Area MT
... nature of the retinal inputs to K1,2 is not known, though their response properties are W-like in the galago (Irvin et al. 1986). Also, the proposed input to MT from the SC via the pulvinar is rendered problematic by the finding that, in owl monkey pulvinar, the principle target of SC terminals (PICM ...
... nature of the retinal inputs to K1,2 is not known, though their response properties are W-like in the galago (Irvin et al. 1986). Also, the proposed input to MT from the SC via the pulvinar is rendered problematic by the finding that, in owl monkey pulvinar, the principle target of SC terminals (PICM ...
Patterns of sensory intermodality relationships in the cerebral cortex
... anterior aspect of the hemisphere, which included primary motor area, area 11,and area 13. The patterns of intermodality relationships revealed in the present study were of two main categories. In the anterior and lateral areas, an intermingling of cells projecting to different sensory modalities wa ...
... anterior aspect of the hemisphere, which included primary motor area, area 11,and area 13. The patterns of intermodality relationships revealed in the present study were of two main categories. In the anterior and lateral areas, an intermingling of cells projecting to different sensory modalities wa ...
Point-Light Biological Motion Perception Activates Human Premotor
... human actor will evoke a vivid percept of action when the body is in motion. The perception of point-light biological motion activates posterior cortical areas of the brain. On the other hand, observation of others’ actions is known to also evoke activity in motor and premotor areas in frontal corte ...
... human actor will evoke a vivid percept of action when the body is in motion. The perception of point-light biological motion activates posterior cortical areas of the brain. On the other hand, observation of others’ actions is known to also evoke activity in motor and premotor areas in frontal corte ...
Different Stimuli, Different Spatial Codes: A Visual Map and an
... 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 proportionately with sound azimuth. Within frontal space, maps and such rate codes involve different response patterns at t ...
... 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 proportionately with sound azimuth. Within frontal space, maps and such rate codes involve different response patterns at t ...
reviews - Center for Complex Systems and Brain Sciences
... The second form of attention is a more deliberate and powerful one that has variable selection criteria, depending on the task at hand (for example, ‘look for the red, horizontal target’). The expression of this topdown attention is most probably controlled from higher areas, including the frontal l ...
... The second form of attention is a more deliberate and powerful one that has variable selection criteria, depending on the task at hand (for example, ‘look for the red, horizontal target’). The expression of this topdown attention is most probably controlled from higher areas, including the frontal l ...
Scene perception: inferior temporal cortex neurons encode the
... Inferior temporal cortex (IT) neurons have reduced receptive field sizes in complex natural scenes. This facilitates the read-out of information about individual objects from IT, but raises the question of whether more than the single object present at the fovea is represented by the firing of IT ne ...
... Inferior temporal cortex (IT) neurons have reduced receptive field sizes in complex natural scenes. This facilitates the read-out of information about individual objects from IT, but raises the question of whether more than the single object present at the fovea is represented by the firing of IT ne ...
PDF
... object must be formed prior to categorization, at least in a tentative manner. Although this issue is debated in the philosophical literature, Prinz’s (2007, 2011a) stance is that high-level perceptual representations (such as concepts or categories, e.g., being a chair) are not part of the content ...
... object must be formed prior to categorization, at least in a tentative manner. Although this issue is debated in the philosophical literature, Prinz’s (2007, 2011a) stance is that high-level perceptual representations (such as concepts or categories, e.g., being a chair) are not part of the content ...
Cross-Modal Transfer of Information between the Tactile
... there is no polysensory cross-modal area, no cross-modal region “in which representations formed in one sense would reside and be accessed by another sense,” but suggested instead a system in which the senses can access each other directly from their sensory-specific systems. For the present purpose ...
... there is no polysensory cross-modal area, no cross-modal region “in which representations formed in one sense would reside and be accessed by another sense,” but suggested instead a system in which the senses can access each other directly from their sensory-specific systems. For the present purpose ...
Role of Ratings of Perceived Exertion during Self
... factors such as knowledge of the task duration/distance remaining, memory of past similar experiences, motivation and mood [5, 10], is believed to be important in the regulation of pace. Important aspects within many of the abovementioned models include the participants’ perception of exertion, perc ...
... factors such as knowledge of the task duration/distance remaining, memory of past similar experiences, motivation and mood [5, 10], is believed to be important in the regulation of pace. Important aspects within many of the abovementioned models include the participants’ perception of exertion, perc ...
Neural representation of object orientation: A dissociation between
... each condition the same number of times (each time in a different orientation). To maintain participants' attention, three additional (non-analyzed) trials with images of toy vehicles were included in each run, and participants pressed a button when they detected a vehicle. Localizers and regions of ...
... each condition the same number of times (each time in a different orientation). To maintain participants' attention, three additional (non-analyzed) trials with images of toy vehicles were included in each run, and participants pressed a button when they detected a vehicle. Localizers and regions of ...
Neural Correlates of Perceived Brightness in the Retina, Lateral
... and a surgical level of anesthesia was achieved with sodium thiopental (initial dose 20 mg / kg, i.v., supplemented as needed). A tracheotomy was performed, and the animal intubated. The animal was then paralyzed with an intravenous inf usion of atracurium besylate (initial dose 5 mg, 0.6 –1.2 mg z ...
... and a surgical level of anesthesia was achieved with sodium thiopental (initial dose 20 mg / kg, i.v., supplemented as needed). A tracheotomy was performed, and the animal intubated. The animal was then paralyzed with an intravenous inf usion of atracurium besylate (initial dose 5 mg, 0.6 –1.2 mg z ...
Prefrontal and parietal cortex mediate the interference
... IPL. These results provide neural evidence for duration-tuned representations in the human brain. ...
... IPL. These results provide neural evidence for duration-tuned representations in the human brain. ...
The impact of continuity editing in narrative film on event segmentation
... By stimulus-driven increases, we mean additional neural activity induced by the presentation of novel information. In the visual system, presentation of novel stimulus features is associated with dishabituation of the relevant neurons and therefore transient increases in fMRI signal. This can be obs ...
... By stimulus-driven increases, we mean additional neural activity induced by the presentation of novel information. In the visual system, presentation of novel stimulus features is associated with dishabituation of the relevant neurons and therefore transient increases in fMRI signal. This can be obs ...
Large-Scale Functional Connectivity in Associative Learning
... Altered converging effects on auditory cortex (AC) from the two parallel paths were noted from the ventral division of medial geniculate (MGV), which is considered a lemniscal structure, and the medial division of the medial geniculate nucleus (MGM), which is considered extralemniscal. Effects from ...
... Altered converging effects on auditory cortex (AC) from the two parallel paths were noted from the ventral division of medial geniculate (MGV), which is considered a lemniscal structure, and the medial division of the medial geniculate nucleus (MGM), which is considered extralemniscal. Effects from ...
An Intracranial EEG Study of the Neural Dynamics of Musical
... Emotional valence refers to the intrinsic attractiveness ( positive emotional valence) or aversiveness (negative emotional valence) of a given object (or event) and applies across sensory domains such that, for instance, unpleasant smells and sad facial expressions are negatively valenced while plea ...
... Emotional valence refers to the intrinsic attractiveness ( positive emotional valence) or aversiveness (negative emotional valence) of a given object (or event) and applies across sensory domains such that, for instance, unpleasant smells and sad facial expressions are negatively valenced while plea ...
the evolution of body and brain, and of sensory
... Malagasy lemurs excepted) forage at night and depend on their keen sense of smell to locate nutrients, most monkeys forage during the day and rely greatly on vision to locate nutrients. (The owl monkey is an exception, but it needs moonlight to be active; Fernández-Duque et al., 2010). The neural pr ...
... Malagasy lemurs excepted) forage at night and depend on their keen sense of smell to locate nutrients, most monkeys forage during the day and rely greatly on vision to locate nutrients. (The owl monkey is an exception, but it needs moonlight to be active; Fernández-Duque et al., 2010). The neural pr ...
Somatosensory System Organization and Texture Sensation in Rats
... 21.6C). Beyond the special case of whiskers, it is common to refer to a brain representation as a “map” whenever the spatial relationship among sensory receptors is conserved in the central representation of the sense organ. A historical note on the discovery of cortical somatosensory maps is given ...
... 21.6C). Beyond the special case of whiskers, it is common to refer to a brain representation as a “map” whenever the spatial relationship among sensory receptors is conserved in the central representation of the sense organ. A historical note on the discovery of cortical somatosensory maps is given ...
A Neural Theory of Visual Attention
... object. Because more processing resources are devoted to behaviorally important objects than to less important ones, the important objects are more likely to become encoded into visual short-term memory (VSTM). The VSTM system is conceived as a (Kwinners-take-all) feedback mechanism that sustains ac ...
... object. Because more processing resources are devoted to behaviorally important objects than to less important ones, the important objects are more likely to become encoded into visual short-term memory (VSTM). The VSTM system is conceived as a (Kwinners-take-all) feedback mechanism that sustains ac ...
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.