A direct quantitative relationship between the functional properties of
... Understanding the relationship between brain activity and motion perception in the human visual system requires appreciation of not only which visual areas participate in motion processing, but also how their responses vary with visual characteristics of the stimulus. Much of our current knowledge o ...
... Understanding the relationship between brain activity and motion perception in the human visual system requires appreciation of not only which visual areas participate in motion processing, but also how their responses vary with visual characteristics of the stimulus. Much of our current knowledge o ...
Visual circuits in flies: beginning to see the whole picture
... and one for dark edges (Figure 2c), as all visual motion can be described as a combination of these two. In the moving light edge-specific pathway, lamina monopolar L1 neurons, postsynaptic to photoreceptors, act as inputs, while direction selective lobula plate T4 neurons, presynaptic to LPTCs, act ...
... and one for dark edges (Figure 2c), as all visual motion can be described as a combination of these two. In the moving light edge-specific pathway, lamina monopolar L1 neurons, postsynaptic to photoreceptors, act as inputs, while direction selective lobula plate T4 neurons, presynaptic to LPTCs, act ...
chapter7
... • Results showed the greatest activation for objects at decision points (landmarks) in the parahippocampal gyrus. ...
... • Results showed the greatest activation for objects at decision points (landmarks) in the parahippocampal gyrus. ...
Ch07
... • Results showed the greatest activation for objects at decision points (landmarks) in the parahippocampal gyrus. ...
... • Results showed the greatest activation for objects at decision points (landmarks) in the parahippocampal gyrus. ...
GABA-antagonist inverts movement and object detection in flies
... Male flies chase female flies. In order t o d o it successfully, they seem t o process at least two different kinds of information -the movement and position of the feniale being chased. T h e associated optomotor and fixation responses have been investigated thoroughly a t both the behavioral and c ...
... Male flies chase female flies. In order t o d o it successfully, they seem t o process at least two different kinds of information -the movement and position of the feniale being chased. T h e associated optomotor and fixation responses have been investigated thoroughly a t both the behavioral and c ...
Pavlov`s Dilemma and Discovery: Classical Conditioning
... tary emotional or physiological responses such as fear, increased heartbeat, salivation, or sweating, which are Classical Conditioning sometimes called respondents because they are automatic responses to stimuli. Through the process of classical conHow does a neutral stimulus become a ditioning, hum ...
... tary emotional or physiological responses such as fear, increased heartbeat, salivation, or sweating, which are Classical Conditioning sometimes called respondents because they are automatic responses to stimuli. Through the process of classical conHow does a neutral stimulus become a ditioning, hum ...
Slide 1
... apertures of random dots appear in the 2 spatial locations In each aperture, a fraction of the dots move coherently in 1 of 2 possible directions (preferred or null) while the other dots are replotted at random locations Monkey was required to discriminate the direction of motion at the attended ...
... apertures of random dots appear in the 2 spatial locations In each aperture, a fraction of the dots move coherently in 1 of 2 possible directions (preferred or null) while the other dots are replotted at random locations Monkey was required to discriminate the direction of motion at the attended ...
Module 20 Basic Learning Concepts and Classical
... Acquisition: the initial stage, when one links a neutral stimulus and an unconditioned stimulus so that the neutral stimulus begins triggering the conditioned response. Higher-order conditioning: a procedure in which the conditioned stimulus in one conditioning experience is paired with a new neutra ...
... Acquisition: the initial stage, when one links a neutral stimulus and an unconditioned stimulus so that the neutral stimulus begins triggering the conditioned response. Higher-order conditioning: a procedure in which the conditioned stimulus in one conditioning experience is paired with a new neutra ...
Myers Module Twenty
... and an unconditioned stimulus so that the neutral stimulus begins triggering the conditioned response. Higher-order conditioning: a procedure in which the conditioned stimulus in one conditioning experience is paired with a new neutral stimulus, creating a second (often weaker) conditioned stimulus. ...
... and an unconditioned stimulus so that the neutral stimulus begins triggering the conditioned response. Higher-order conditioning: a procedure in which the conditioned stimulus in one conditioning experience is paired with a new neutral stimulus, creating a second (often weaker) conditioned stimulus. ...
LT2Ch7
... Conditioned stimuli always produce a response. Discriminative stimuli signal the opportunity to respond. ...
... Conditioned stimuli always produce a response. Discriminative stimuli signal the opportunity to respond. ...
LTNov12
... Conditioned stimuli always produce a response. Discriminative stimuli signal the opportunity to respond. ...
... Conditioned stimuli always produce a response. Discriminative stimuli signal the opportunity to respond. ...
Perception of Motion, Depth, and Form
... N vISIoN,AS IN orHERmental oPerations, we exPerrence the world as a whole. Independent attributesmotion, depth, form, and color-are coordinated into a single visual image. In the two Previous chapters we began to consider how two parallel Pathways-the magnocellular and parvocellular pathways, that e ...
... N vISIoN,AS IN orHERmental oPerations, we exPerrence the world as a whole. Independent attributesmotion, depth, form, and color-are coordinated into a single visual image. In the two Previous chapters we began to consider how two parallel Pathways-the magnocellular and parvocellular pathways, that e ...
How is the stimulus represented in the nervous system?
... The problem comes in estimating P(v) and P(n) which may be difficult to do meaningfully, especially for natural stimuli. Thus we often work on the forward problem, estimating the response given an arbitrary stimulus, and postpone the reverse problem. There is another problem: what is the appropriate ...
... The problem comes in estimating P(v) and P(n) which may be difficult to do meaningfully, especially for natural stimuli. Thus we often work on the forward problem, estimating the response given an arbitrary stimulus, and postpone the reverse problem. There is another problem: what is the appropriate ...
Structural Loop Between the Cerebellum and the Superior Temporal
... one-back repetition task with a total of 100 biological motion animations (equal number of either a point-light walker or its spatially scrambled version) that were computer generated by using Cutting’s algorithm (Cutting 1978). Immediate repetitions of each type of stimulus were indicated by pressi ...
... one-back repetition task with a total of 100 biological motion animations (equal number of either a point-light walker or its spatially scrambled version) that were computer generated by using Cutting’s algorithm (Cutting 1978). Immediate repetitions of each type of stimulus were indicated by pressi ...
Classical Conditioning PPT
... inner thoughts and feelings and focus on observable behavior “The theoretical goal [of Behaviorism] is the prediction and control of behavior. Introspection forms no essential part of its methods.” ...
... inner thoughts and feelings and focus on observable behavior “The theoretical goal [of Behaviorism] is the prediction and control of behavior. Introspection forms no essential part of its methods.” ...
A proposed common neural mechanism for categorization and
... have developed by the decision circuitry incorporating into established sensorimotor networks19. The intentional framework may also extend to other types of decisions; for example, Glimcher and colleagues have proposed a similar action-based framework to describe parietal activity related to econo ...
... have developed by the decision circuitry incorporating into established sensorimotor networks19. The intentional framework may also extend to other types of decisions; for example, Glimcher and colleagues have proposed a similar action-based framework to describe parietal activity related to econo ...
Cortical Substrates of Perceptual Stability during Eye Movements
... perception of self-induced visual motion rather than the retinal motion signal. Using EEG and lately also MEG recordings in human subjects and single-unit recordings in monkeys, we have been able to show that our ability to perceive the world as stationary despite eye-movement-induced retinal image ...
... perception of self-induced visual motion rather than the retinal motion signal. Using EEG and lately also MEG recordings in human subjects and single-unit recordings in monkeys, we have been able to show that our ability to perceive the world as stationary despite eye-movement-induced retinal image ...
Paying attention to correlated neural activity
... of data to be estimated properly and they affect information content of neural codes and downstream processing in ways that are remarkably complicated and counterintuitive1–5. However, we have no choice. If we are to understand how neural activity relates to behavioral performance, we need to measur ...
... of data to be estimated properly and they affect information content of neural codes and downstream processing in ways that are remarkably complicated and counterintuitive1–5. However, we have no choice. If we are to understand how neural activity relates to behavioral performance, we need to measur ...
INFORMATION PROCESSING WITH POPULATION CODES
... architecture of the brain. What are the units of computation and how is information represented at the neural level? An important part of the answers to these questions is that individual elements of information are encoded not by single cells, but rather by populations or clusters of cells. This en ...
... architecture of the brain. What are the units of computation and how is information represented at the neural level? An important part of the answers to these questions is that individual elements of information are encoded not by single cells, but rather by populations or clusters of cells. This en ...
Comparing neuronal and behavioral thresholds
... Earlier studies in primates have found neurons in the dorsal division of the medial superior temporal area that are tuned for spiral direction [2,3], in a similar manner as middle temporal neurons are tuned for the direction of linear motion [4]. These neurons may play an important role in optic flo ...
... Earlier studies in primates have found neurons in the dorsal division of the medial superior temporal area that are tuned for spiral direction [2,3], in a similar manner as middle temporal neurons are tuned for the direction of linear motion [4]. These neurons may play an important role in optic flo ...
Paying attention to correlated neural activity
... of data to be estimated properly and they affect information content of neural codes and downstream processing in ways that are remarkably complicated and counterintuitive1–5. However, we have no choice. If we are to understand how neural activity relates to behavioral performance, we need to m ...
... of data to be estimated properly and they affect information content of neural codes and downstream processing in ways that are remarkably complicated and counterintuitive1–5. However, we have no choice. If we are to understand how neural activity relates to behavioral performance, we need to m ...
Frog Vision
... provide a recoding of the retinal image. • The retinal image is specified in terms of luminance at each receptor - this description is redundant and not useful to frog. • Tectal neurons recode each small region on retina in terms of 4 basic features or parameters, so we have 4 different average firi ...
... provide a recoding of the retinal image. • The retinal image is specified in terms of luminance at each receptor - this description is redundant and not useful to frog. • Tectal neurons recode each small region on retina in terms of 4 basic features or parameters, so we have 4 different average firi ...
Text S2: Conflicting demands of localization and pattern
... However, in order to achieve invariance with respect to x and µ in the central pattern neuron, we can make use of the subtraction of the peripheries. For any given ∆x this means that rper(x+µ+∆x) - rper(x+µ-∆x) = rdir(∆x). After differentiating this equation with respect to (x+µ) and rearranging we ...
... However, in order to achieve invariance with respect to x and µ in the central pattern neuron, we can make use of the subtraction of the peripheries. For any given ∆x this means that rper(x+µ+∆x) - rper(x+µ-∆x) = rdir(∆x). After differentiating this equation with respect to (x+µ) and rearranging we ...
Moving Colors in the Lime Light Minireview
... to discerning the mechanisms by which color information reaches motion processing areas of the brain. However, just when the roles of the parvocellular and magnocellular pathways in color-motion processing were finally getting sorted out, a third pathway—referred to as koniocellular—has made its deb ...
... to discerning the mechanisms by which color information reaches motion processing areas of the brain. However, just when the roles of the parvocellular and magnocellular pathways in color-motion processing were finally getting sorted out, a third pathway—referred to as koniocellular—has made its deb ...
Quantitative object motion prediction by an ART2 and Madaline
... first case, a set of mathematical functions are used to generate the testing data. These functions facilitate the evaluation of the prediction errors. By changing the parameters of these functions, object motions with different characteristics of swiftness and abruptness are tested. The mean-squared ...
... first case, a set of mathematical functions are used to generate the testing data. These functions facilitate the evaluation of the prediction errors. By changing the parameters of these functions, object motions with different characteristics of swiftness and abruptness are tested. The mean-squared ...