Searching for lost memories, Sudoku, and related ills of the brain
... processing has understood what the paper has to offer. Instead we read the abstract and part of the introduction, look at a few figures, read their captions, look for the essence of a particular experimental protocol, try to see the implications of an equation, glance at the conclusions, look at a f ...
... processing has understood what the paper has to offer. Instead we read the abstract and part of the introduction, look at a few figures, read their captions, look for the essence of a particular experimental protocol, try to see the implications of an equation, glance at the conclusions, look at a f ...
PDF - Oxford Academic - Oxford University Press
... 3 days), multiple repetitions at three delays (60 s, 90 s and 3 days) and visual noise. A constant was included for each subject as effect of no interest. The evoked hemodynamic responses for each of the nine event-types were modelled as delta functions and convolved with a synthetic hemodynamic res ...
... 3 days), multiple repetitions at three delays (60 s, 90 s and 3 days) and visual noise. A constant was included for each subject as effect of no interest. The evoked hemodynamic responses for each of the nine event-types were modelled as delta functions and convolved with a synthetic hemodynamic res ...
Document
... (front-temporal dementia). The link between BA42 overproduction and tau dysfunction is presently uncertain and represented by a ? mark. In addition, it is unclear whether tau dysfunction leads directly to cell death or if the formation of NFTs are a necessary intermediate (Hardy, 1998). ...
... (front-temporal dementia). The link between BA42 overproduction and tau dysfunction is presently uncertain and represented by a ? mark. In addition, it is unclear whether tau dysfunction leads directly to cell death or if the formation of NFTs are a necessary intermediate (Hardy, 1998). ...
AIP
... of the labeling observed in the present study following injections in AIP and LIP, in agreement also with data of Andersen et al. (1990) on LIP connections, support the physiological evidence that AIP is an independent field within the lateral bank of the IP.” –[Luppino et at 1997] ...
... of the labeling observed in the present study following injections in AIP and LIP, in agreement also with data of Andersen et al. (1990) on LIP connections, support the physiological evidence that AIP is an independent field within the lateral bank of the IP.” –[Luppino et at 1997] ...
Cortical region interactions and the functional role of apical
... The anatomically observed segregation of input sources, between apical and basal dendrites, may thus have functional significance. The axon initial segment acts as the final site of integration as it is here that action potential initialization occurs (Stuart et al., 1997b). However, inputs to diffe ...
... The anatomically observed segregation of input sources, between apical and basal dendrites, may thus have functional significance. The axon initial segment acts as the final site of integration as it is here that action potential initialization occurs (Stuart et al., 1997b). However, inputs to diffe ...
Insect hearing: from physics to ecology - Karl-Franzens
... 1971). Thanks to refined methods of scanning Laser Doppler Vibrometry, it has recently been shown that—similar to vertebrate ears—traveling waves are the basis of frequency discrimination not only in locusts but also in crickets and bush crickets (see Montealegre-Z and Robert 2015). There are remark ...
... 1971). Thanks to refined methods of scanning Laser Doppler Vibrometry, it has recently been shown that—similar to vertebrate ears—traveling waves are the basis of frequency discrimination not only in locusts but also in crickets and bush crickets (see Montealegre-Z and Robert 2015). There are remark ...
A Small World of Neuronal Synchrony
... called ‘‘small-world’’ properties. A small-world network exhibits a connectivity that constitutes a compromise between random and nearest neighbor regimes resulting in a short average path length despite the predominance of local connections (Watts and Strogatz 1998; Sporns et al. 2004; Bassett and ...
... called ‘‘small-world’’ properties. A small-world network exhibits a connectivity that constitutes a compromise between random and nearest neighbor regimes resulting in a short average path length despite the predominance of local connections (Watts and Strogatz 1998; Sporns et al. 2004; Bassett and ...
Modelling the Grid-like Encoding of Visual Space
... The majority of conventional grid cell models rely on mechanisms that directly integrate information on the velocity and direction of an animal into a periodic representation of the animal’s location (Kerdels, 2016). As a consequence, the particular models do not generalize well, i.e., they can not ...
... The majority of conventional grid cell models rely on mechanisms that directly integrate information on the velocity and direction of an animal into a periodic representation of the animal’s location (Kerdels, 2016). As a consequence, the particular models do not generalize well, i.e., they can not ...
Object Shape Differences Reflected by Somatosensory Cortical
... Group 1. This group engaged in two different conditions. In one they discriminated ellipsoids in the round set, and in the other they discriminated ellipsoids in the oblong set. The subjects were unaware of the ellipsoids being divided into two sets. The subjects discriminated the oblongness of elli ...
... Group 1. This group engaged in two different conditions. In one they discriminated ellipsoids in the round set, and in the other they discriminated ellipsoids in the oblong set. The subjects were unaware of the ellipsoids being divided into two sets. The subjects discriminated the oblongness of elli ...
The Mystery of Consciousness Continues June 9, 2011 John R
... understand qualitativeness, think of the difference between drinking beer, listening to music, and thinking about your income tax. Each experience has a distinct quality. Because of this qualitative character all conscious states are essentially subjective in the sense that they exist only as experi ...
... understand qualitativeness, think of the difference between drinking beer, listening to music, and thinking about your income tax. Each experience has a distinct quality. Because of this qualitative character all conscious states are essentially subjective in the sense that they exist only as experi ...
Daniel Dennett on the Nature of Consciousness
... psychology and neuroscience of consciousness, our sense of being in a Cartesian Theater is illusory. Dennett’s critique of Cartesian Materialism can be understood against the backdrop of his own, positive view of consciousness, which he calls the “Multiple Drafts Model.” According to the Multiple Dr ...
... psychology and neuroscience of consciousness, our sense of being in a Cartesian Theater is illusory. Dennett’s critique of Cartesian Materialism can be understood against the backdrop of his own, positive view of consciousness, which he calls the “Multiple Drafts Model.” According to the Multiple Dr ...
Depth perception by the active observer
... without these signals. Similar extra-retinal compensation is found for head [18] and whole-body [19] movements. Locomotion is most often a goal-directed action: we usually know where we want to go before starting to move. The analysis of optic flow is therefore unlikely to be the only way, or even t ...
... without these signals. Similar extra-retinal compensation is found for head [18] and whole-body [19] movements. Locomotion is most often a goal-directed action: we usually know where we want to go before starting to move. The analysis of optic flow is therefore unlikely to be the only way, or even t ...
Artificial Neuron Network Implementation of Boolean Logic Gates by
... McCulloch & Pitts (McCulloch, 1943) are generally recognized as being the designers of the first neural network. They recognized that combining many simple processing units together could lead to an overall increase in computational power. Many of their suggested ideas are still in use today. For in ...
... McCulloch & Pitts (McCulloch, 1943) are generally recognized as being the designers of the first neural network. They recognized that combining many simple processing units together could lead to an overall increase in computational power. Many of their suggested ideas are still in use today. For in ...
How different are the visual representations used for object
... binding of geons by coding where each geon is fixed at a specific position in a Holistic Surface Map. This 2D representation captures the interrelation of geons as they were perceived in one particular view. The mapping from the output of the feature maps in the first subsystem preserves the topolog ...
... binding of geons by coding where each geon is fixed at a specific position in a Holistic Surface Map. This 2D representation captures the interrelation of geons as they were perceived in one particular view. The mapping from the output of the feature maps in the first subsystem preserves the topolog ...
text - Systems Neuroscience Course, MEDS 371, Univ. Conn. Health
... Like other regions of the cerebral cortex, V1 is organized into six layers each of which is parallel to the cortical surface (see Purves, pp. 588-589). Together, the layers constitute the cortical grey matter, which is usually about 2 mm in thickness. A. Layer 1, the most superficial layer, contains ...
... Like other regions of the cerebral cortex, V1 is organized into six layers each of which is parallel to the cortical surface (see Purves, pp. 588-589). Together, the layers constitute the cortical grey matter, which is usually about 2 mm in thickness. A. Layer 1, the most superficial layer, contains ...
Is neuroimaging measuring information in the brain? | SpringerLink
... need to be decoded by a receiver. Thus, in Shannon’s formulation, the quantification of information over a channel was contingent on the existence of a ‘receiver’. The importance of a receiver in Shannon’s formulation seems to be neglected in modern neuroscience, perhaps because, for the communicati ...
... need to be decoded by a receiver. Thus, in Shannon’s formulation, the quantification of information over a channel was contingent on the existence of a ‘receiver’. The importance of a receiver in Shannon’s formulation seems to be neglected in modern neuroscience, perhaps because, for the communicati ...
Selective visual attention and perceptual coherence
... participating region of visual cortex contributes domainspecific information as part of a distributed perceptual representation. Once a given coherence field is established, we propose that voluntary attention shifts are initiated by transient switch signals that ‘reset’ or ‘nudge’ the brain out of ...
... participating region of visual cortex contributes domainspecific information as part of a distributed perceptual representation. Once a given coherence field is established, we propose that voluntary attention shifts are initiated by transient switch signals that ‘reset’ or ‘nudge’ the brain out of ...
Neural representation of action sequences: how far can
... For the “what is where” vision problem, one common simplification of the primate visual system is that the ventral stream handles the “what” problem, while the dorsal stream handles the “where” problem [1]. Here, we investigate the analogous “who is doing what” problem. Prior work has found that bra ...
... For the “what is where” vision problem, one common simplification of the primate visual system is that the ventral stream handles the “what” problem, while the dorsal stream handles the “where” problem [1]. Here, we investigate the analogous “who is doing what” problem. Prior work has found that bra ...
Computational modeling of responses in human visual
... ventral sections of V3. This nested organization for V1-V3 is typical of non-human primates. But the confirmation that this organization is present in human was only made in the early 1990s by a combination of neurology and fMRI (20, 21, 23-25). Visual stimuli elicit activity in about twenty percent ...
... ventral sections of V3. This nested organization for V1-V3 is typical of non-human primates. But the confirmation that this organization is present in human was only made in the early 1990s by a combination of neurology and fMRI (20, 21, 23-25). Visual stimuli elicit activity in about twenty percent ...
A Neural Network Architecture for General Image Recognition
... process will produce a representation map called the 2Y2-D sketch. Further extensions of Marr's method add one or more of the following stages: (1) cleanup of input pixel values with image-restoration techniques, (2) production of multiple images for stereomapping and motion analysis, (3) adjustment ...
... process will produce a representation map called the 2Y2-D sketch. Further extensions of Marr's method add one or more of the following stages: (1) cleanup of input pixel values with image-restoration techniques, (2) production of multiple images for stereomapping and motion analysis, (3) adjustment ...
Sensory modalities are not separate modalities: plasticity and
... interactions has been accounted for in a ‘modality appropriateness’ hypothesis [23]. This hypothesis postulates that the modality that is most appropriate or reliable with respect to a given task is the modality that dominates the perception in the context of that task. Vision has a higher spatial r ...
... interactions has been accounted for in a ‘modality appropriateness’ hypothesis [23]. This hypothesis postulates that the modality that is most appropriate or reliable with respect to a given task is the modality that dominates the perception in the context of that task. Vision has a higher spatial r ...
The Mind-Body Problem and Current Behavioral
... of the task to study the brain mechanisms of fear. This strategy allowed a focus on the fear reaction conditioned by the shock rather than on behaviors that avoid the shock.» (He seems to consider this as an achievement or progress) ...
... of the task to study the brain mechanisms of fear. This strategy allowed a focus on the fear reaction conditioned by the shock rather than on behaviors that avoid the shock.» (He seems to consider this as an achievement or progress) ...