Magnetoencephalographic Investigation of Human Cortical Area V1
... psychophysical studies demonstrating a contribution from color-opponent mechanisms to motion perception (e.g., Cavanagh and Anstis, 1991). Some studies suggest that there may be more than one chromatic motion system (Derrington and Henning, 1993; Gorea et al., 1993a,b; Cropper and Derrington, 1994; ...
... psychophysical studies demonstrating a contribution from color-opponent mechanisms to motion perception (e.g., Cavanagh and Anstis, 1991). Some studies suggest that there may be more than one chromatic motion system (Derrington and Henning, 1993; Gorea et al., 1993a,b; Cropper and Derrington, 1994; ...
Neural Axis Representing Target Range in the Auditory
... tion processing even in the terminal phase of echolocation. Neurons with long BD's were recorded at the caudal part of the FM processing area (Fig. 1B). The longest BD obtained was 18 msec, corresponding to a target range of 310 cm. The delay-tuning curves of such neurons are broad, and they respond ...
... tion processing even in the terminal phase of echolocation. Neurons with long BD's were recorded at the caudal part of the FM processing area (Fig. 1B). The longest BD obtained was 18 msec, corresponding to a target range of 310 cm. The delay-tuning curves of such neurons are broad, and they respond ...
AP Psychology Student Samples (2016
... Do NOT score: Solutions that appear to be trial and error or algorithm: “When Ashley got lost, she tried mapping her route according to every possible highway to see which one looked fastest.” ...
... Do NOT score: Solutions that appear to be trial and error or algorithm: “When Ashley got lost, she tried mapping her route according to every possible highway to see which one looked fastest.” ...
Representing the Hyphen in Action–Effect
... sner & Hommel, 2001; Greenwald, 1970). These paradigms typically consist of an acquisition phase that is followed by a test phase. The acquisition phase is used to establish arbitrary A–E associations: Participants repeatedly perform two or more actions such as pressing left or right response keys. ...
... sner & Hommel, 2001; Greenwald, 1970). These paradigms typically consist of an acquisition phase that is followed by a test phase. The acquisition phase is used to establish arbitrary A–E associations: Participants repeatedly perform two or more actions such as pressing left or right response keys. ...
Midterm 1
... Comments: As described above, the area connecting our two hemispheres is called the corpus callosum. When severed through split-brain surgery, the two hemispheres lose their ability to communicate with each other. This impacts the ability for our language (something controlled by the left side of or ...
... Comments: As described above, the area connecting our two hemispheres is called the corpus callosum. When severed through split-brain surgery, the two hemispheres lose their ability to communicate with each other. This impacts the ability for our language (something controlled by the left side of or ...
Digital Selection and Analogue Amplification Coexist in a cortex-inspired silicon circuit
... achieved in analogue circuits are generally seen as incompatible functions and are separated into two classes of electronic technology. However, the neuronal circuits of the neocortex do not respect this distinction. There, multistability coexists with analogue response. For example, when a visual s ...
... achieved in analogue circuits are generally seen as incompatible functions and are separated into two classes of electronic technology. However, the neuronal circuits of the neocortex do not respect this distinction. There, multistability coexists with analogue response. For example, when a visual s ...
Trial time warping to discriminate stimulus-related
... of a task. Different algorithms have been implemented to determine the onset latency of neurons using parametric (Ellaway, 1978; Seal et al., 1983; Davey et al., 1986; Baker and Gerstein, 2001) or nonparametric methods (Sanderson, 1980; Nawrot et al., 2003; Ventura, 2004). Most of these methods take ...
... of a task. Different algorithms have been implemented to determine the onset latency of neurons using parametric (Ellaway, 1978; Seal et al., 1983; Davey et al., 1986; Baker and Gerstein, 2001) or nonparametric methods (Sanderson, 1980; Nawrot et al., 2003; Ventura, 2004). Most of these methods take ...
Electrodiagnosis
... - Normal musculature responds to electrical stimulation by either alternating current (AC) or direct current (DC). - A poor or absent response to AC stimulation indicates the presence of neural damage “reaction of degeneration” (RD). If this occurs, DC will be preferable. - Sluggish response with DC ...
... - Normal musculature responds to electrical stimulation by either alternating current (AC) or direct current (DC). - A poor or absent response to AC stimulation indicates the presence of neural damage “reaction of degeneration” (RD). If this occurs, DC will be preferable. - Sluggish response with DC ...
Neuronal correlates of decision
... Responses of S2 neurons during the comparison period Many neurons in S2 did not respond in a purely sensory manner: their response to stimulus f2 was not simply a function of f2 frequency. Two particularly clear example neurons are shown in Figs. 2 and 3. The trial blocks highlighted by thick black ...
... Responses of S2 neurons during the comparison period Many neurons in S2 did not respond in a purely sensory manner: their response to stimulus f2 was not simply a function of f2 frequency. Two particularly clear example neurons are shown in Figs. 2 and 3. The trial blocks highlighted by thick black ...
attention - CMU Graphics
... ● Changes strength of neurons’ response without changing underlying response properties ● Enhances synchronization of neuronal activity ● Spatial attention will increase the gain of all neurons whose receptive field overlaps the current attentional focus, creating an enhanced representation at that ...
... ● Changes strength of neurons’ response without changing underlying response properties ● Enhances synchronization of neuronal activity ● Spatial attention will increase the gain of all neurons whose receptive field overlaps the current attentional focus, creating an enhanced representation at that ...
A direct quantitative relationship between the functional properties of
... Fig. 4. fMRI responses to stimulus coherence in three representative cortical areas. (a) Brain responses in human V5 plotted as a function of stimulus coherence. Data represent the modulation of brain responses accounted for by first- and second-order terms around the mean response established by th ...
... Fig. 4. fMRI responses to stimulus coherence in three representative cortical areas. (a) Brain responses in human V5 plotted as a function of stimulus coherence. Data represent the modulation of brain responses accounted for by first- and second-order terms around the mean response established by th ...
Form representation in monkey inferotemporal cortex is virtually
... activity in the inferotemporal cerebral cortex (IT)1,2, but most studies of IT neuronal responses have been done under restricted viewing and task conditions. Typically, non-human primates stare at a fixation point while isolated stimuli are flashed on the retina, often in a task that does not requi ...
... activity in the inferotemporal cerebral cortex (IT)1,2, but most studies of IT neuronal responses have been done under restricted viewing and task conditions. Typically, non-human primates stare at a fixation point while isolated stimuli are flashed on the retina, often in a task that does not requi ...
VL_CHAPTER_4
... wrong, your answer won’t stick. After you have finished, click on the dot under the left visual field to see how information from one visual field travels along the visual pathway to the brain. Pay special attention to the spatial relations of input from the left and right visual fields. Clicking on ...
... wrong, your answer won’t stick. After you have finished, click on the dot under the left visual field to see how information from one visual field travels along the visual pathway to the brain. Pay special attention to the spatial relations of input from the left and right visual fields. Clicking on ...
Midterm 1
... Notes: Since the study mentioned appears to be examining the overlap between two scale variables, we call this particular type of research correlational. Correlational research attempts to understand the strength of the relationship between variables. It can also be used to predict where a level in ...
... Notes: Since the study mentioned appears to be examining the overlap between two scale variables, we call this particular type of research correlational. Correlational research attempts to understand the strength of the relationship between variables. It can also be used to predict where a level in ...
Physiology SENSORY PHYSIOLOGY Sensory Receptors Martin Paré
... Each sensory receptor is most sensitive to stimulation of a specific area, which defines the receptor’s receptive field. When action potentials are elicited from a sensory neuron, the neuron’s receptive field codes the stimulus location. ...
... Each sensory receptor is most sensitive to stimulation of a specific area, which defines the receptor’s receptive field. When action potentials are elicited from a sensory neuron, the neuron’s receptive field codes the stimulus location. ...
Stimuluslocked responses on human arm muscles reveal a rapid
... appearance and functionally relevant for orienting gaze (head and eye) towards the target. Because oculomotor structures thought to contribute to ‘visual responses’ on neck muscles also target some arm muscles via a tecto-reticulo-spinal pathway, we hypothesized that a similar visual response would ...
... appearance and functionally relevant for orienting gaze (head and eye) towards the target. Because oculomotor structures thought to contribute to ‘visual responses’ on neck muscles also target some arm muscles via a tecto-reticulo-spinal pathway, we hypothesized that a similar visual response would ...
GABA-antagonist inverts movement and object detection in flies
... min (average of 6 tlies in Fig. 2a). Some tlies show in the recovery period a slightly higher response than in the pretest period. The picrotoxinin-induced reduction of Rds is in agreement with models invoking inhibition as a crucial element in movement detection. The excitation induced by the stimu ...
... min (average of 6 tlies in Fig. 2a). Some tlies show in the recovery period a slightly higher response than in the pretest period. The picrotoxinin-induced reduction of Rds is in agreement with models invoking inhibition as a crucial element in movement detection. The excitation induced by the stimu ...
Simulating the Fröhlich Effect of Motion Misperception as a Result... Attentional Modulation in the Visual System
... (α = 0.5). This constitutes the end of the first step of the feedback loop. After the next delay the net searches for the most highly activated neurons inside the receptive fields of these neurons, and so on, until the feedback finally reaches the second layer. As the final step, the model determine ...
... (α = 0.5). This constitutes the end of the first step of the feedback loop. After the next delay the net searches for the most highly activated neurons inside the receptive fields of these neurons, and so on, until the feedback finally reaches the second layer. As the final step, the model determine ...
Natural signal statistics and sensory gain control
... Fig. 2. Joint statistics of a typical natural image as seen through two linear filters. Top, the linear response of a vertical filter (L2), conditioned on two different values of the response of a diagonal spatially shifted filter (L1). Pairs of responses are gathered over all image positions, and a ...
... Fig. 2. Joint statistics of a typical natural image as seen through two linear filters. Top, the linear response of a vertical filter (L2), conditioned on two different values of the response of a diagonal spatially shifted filter (L1). Pairs of responses are gathered over all image positions, and a ...
3680Lecture13 - U of L Class Index
... – multiple feed-forward sweeps progressing at different rates (I.e. magno and parvo pathways) in parallel • M pathway is myelinated • P pathway is not ...
... – multiple feed-forward sweeps progressing at different rates (I.e. magno and parvo pathways) in parallel • M pathway is myelinated • P pathway is not ...
Decision Making: Hitting an uncertain target | eLife
... information supplied to the monkeys was high they tended to move the cursor to a location that was the average of the target locations in the previous trials: this approach makes sense when relatively little information is available. The Northwestern group also observed relatively high levels of act ...
... information supplied to the monkeys was high they tended to move the cursor to a location that was the average of the target locations in the previous trials: this approach makes sense when relatively little information is available. The Northwestern group also observed relatively high levels of act ...
PowerPoint Slides - Portland State University
... • State space analysis and synthesis of vocalizations to aid in stimulus design • Comparison of neural responses from both a spike rate and spike timing perspective • Improved methods for creating input>output models of individual neurons provided the pure tone responses of these neurons – Used to a ...
... • State space analysis and synthesis of vocalizations to aid in stimulus design • Comparison of neural responses from both a spike rate and spike timing perspective • Improved methods for creating input>output models of individual neurons provided the pure tone responses of these neurons – Used to a ...
Making Sense of Internal Logic: Theory and a Case Study
... In order to formulate an e ective interface, we have searched a suÆciently simple yet meaningful cognitive experiment. As one candidate for such an experiment, we considered the type recently carried out by Sakagami and Niki [4] and Sakagami and Tsutsui [5]. They performed a set of experiments inves ...
... In order to formulate an e ective interface, we have searched a suÆciently simple yet meaningful cognitive experiment. As one candidate for such an experiment, we considered the type recently carried out by Sakagami and Niki [4] and Sakagami and Tsutsui [5]. They performed a set of experiments inves ...
Reflexes. Reaction time.
... • monosynaptic: the reflex arc consists of only two neurons (one sensory neuron, and one motor neuron; monosynaptic refers to the presence of a single chemical synapse) – peripheral muscle reflexes (patellar reflex, achilles reflex): brief stimulation to the muscle spindle results in contraction of ...
... • monosynaptic: the reflex arc consists of only two neurons (one sensory neuron, and one motor neuron; monosynaptic refers to the presence of a single chemical synapse) – peripheral muscle reflexes (patellar reflex, achilles reflex): brief stimulation to the muscle spindle results in contraction of ...
MCB105 QUIZ 5 2016 wA
... owls and why? [1] instructive signal/ visual responses to allow alignment of visual and auditory space - their recordings showed that visual receptive fields of ICX neurons were restricted and quite similar in size to the ones observed in the OT. b) How did they open the 'gate' that prevented these ...
... owls and why? [1] instructive signal/ visual responses to allow alignment of visual and auditory space - their recordings showed that visual receptive fields of ICX neurons were restricted and quite similar in size to the ones observed in the OT. b) How did they open the 'gate' that prevented these ...
Response priming
In the psychology of perception and motor control, the term response priming denotes a special form of priming. Generally, priming effects take place whenever a response to a target stimulus is influenced by a prime stimulus presented at an earlier time. The distinctive feature of response priming is that prime and target are presented in quick succession (typically, less than 100 milliseconds apart) and are coupled to identical or alternative motor responses. When a speeded motor response is performed to classify the target stimulus, a prime immediately preceding the target can thus induce response conflicts when assigned to a different response as the target. These response conflicts have observable effects on motor behavior, leading to priming effects, e.g., in response times and error rates. A special property of response priming is its independence from visual awareness of the prime.