Chapter 4 monkey
... Thompson 2008). It therefore appears that this area is an integral part of the circuitries which mediate both attentional and decision-making processes if the task requires an eye movement response. The roles of area FEF and the principal sulcus (PS) in decision making have been investigated in a ta ...
... Thompson 2008). It therefore appears that this area is an integral part of the circuitries which mediate both attentional and decision-making processes if the task requires an eye movement response. The roles of area FEF and the principal sulcus (PS) in decision making have been investigated in a ta ...
Saccade Target Selection in Frontal Eye Field of Macaque. I. Visual
... by a fixed interval (300-500 msec) (Fig. 1C). This condition was used to assess the activation of neurons in response to stimuli presented when the monkey was instructed that no saccade should be made. The first and third conditions were repeated presenting the target with distracters (Fig. ID&). Th ...
... by a fixed interval (300-500 msec) (Fig. 1C). This condition was used to assess the activation of neurons in response to stimuli presented when the monkey was instructed that no saccade should be made. The first and third conditions were repeated presenting the target with distracters (Fig. ID&). Th ...
PDF-document - homepage.ruhr-uni
... stimuli. Here we ask whether neurons in the intermediate and deep layers of the SC are also involved in the interaction with objects. In two trained monkeys we found a large number of SC units that were specifically activated when the monkeys contacted and pushed a target that had been reached with ...
... stimuli. Here we ask whether neurons in the intermediate and deep layers of the SC are also involved in the interaction with objects. In two trained monkeys we found a large number of SC units that were specifically activated when the monkeys contacted and pushed a target that had been reached with ...
Single-trial decoding of intended eye movement goals from lateral
... target locations and calculating MI for 1,000 different shuffles. We labeled neurons as having significant target location information within an epoch if the MI was greater than 99% of the null values for that epoch. Neurons with significant MI during the baseline epoch were excluded from further ne ...
... target locations and calculating MI for 1,000 different shuffles. We labeled neurons as having significant target location information within an epoch if the MI was greater than 99% of the null values for that epoch. Neurons with significant MI during the baseline epoch were excluded from further ne ...
identify medical supplies carried by the combat lifesaver
... battlefield in which combat elements are widely dispersed. This will create a problem for the Army Medical Department as well as the rest of the Army. Since the combat elements will be spread out and constantly on the move, it will be difficult for medical personnel such as the combat medic to quick ...
... battlefield in which combat elements are widely dispersed. This will create a problem for the Army Medical Department as well as the rest of the Army. Since the combat elements will be spread out and constantly on the move, it will be difficult for medical personnel such as the combat medic to quick ...
Been There, Seen That: A Neural Mechanism for Performing
... and then integrated with top-down feedback, such as the suppression of task irrelevant stimuli, modulation due to reward contingencies or prior expectations. Our hypothesis is that covert attention is allocated based on the topography of the map on a moment-by-moment basis, and eye movements are gui ...
... and then integrated with top-down feedback, such as the suppression of task irrelevant stimuli, modulation due to reward contingencies or prior expectations. Our hypothesis is that covert attention is allocated based on the topography of the map on a moment-by-moment basis, and eye movements are gui ...
Document
... three targets. Each correct touch (black arrow) was signaled by a short tone delivered from a buzzer located above the screen. The monkey was rewarded only after three correct touches. In case of an incorrect touch, a break of fixation or an early touch, all targets were extinguished, and the trial ...
... three targets. Each correct touch (black arrow) was signaled by a short tone delivered from a buzzer located above the screen. The monkey was rewarded only after three correct touches. In case of an incorrect touch, a break of fixation or an early touch, all targets were extinguished, and the trial ...
Stimuluslocked responses on human arm muscles reveal a rapid
... 1 ⁄ 3 and 2 ⁄ 3, rather than 1 ⁄ 4 and 3 ⁄ 4 as are often used, because we were primarily interested in estimating the onset of discrimination; that said, our results were not qualitatively changed by modestly changing the threshold or timing parameters. To determine if the EMG activity was linked t ...
... 1 ⁄ 3 and 2 ⁄ 3, rather than 1 ⁄ 4 and 3 ⁄ 4 as are often used, because we were primarily interested in estimating the onset of discrimination; that said, our results were not qualitatively changed by modestly changing the threshold or timing parameters. To determine if the EMG activity was linked t ...
Journal of Cognitive Neuroscience 10:1
... redundant degrees of freedom, are not covered by our model. Some of these issues are addressed by other models (Bullock, Grossberg, & Guenther, 1993). Some dynamic aspects of M1 have been investigated experimentally. One approach is to rapidly change the location of a visual target just after moveme ...
... redundant degrees of freedom, are not covered by our model. Some of these issues are addressed by other models (Bullock, Grossberg, & Guenther, 1993). Some dynamic aspects of M1 have been investigated experimentally. One approach is to rapidly change the location of a visual target just after moveme ...
Top-Down Versus Bottom-Up Control of Attention in the Prefrontal
... “found” (reflected) the target location by computing when the amount of information in its firing rate about target location first reached significance (13). The data for each trial were grouped by condition (pop-out or search) and by target location, thus factoring out information about target feat ...
... “found” (reflected) the target location by computing when the amount of information in its firing rate about target location first reached significance (13). The data for each trial were grouped by condition (pop-out or search) and by target location, thus factoring out information about target feat ...
Top-Down Versus Bottom-Up Control
... “found” (reflected) the target location by computing when the amount of information in its firing rate about target location first reached significance (13). The data for each trial were grouped by condition (pop-out or search) and by target location, thus factoring out information about target feat ...
... “found” (reflected) the target location by computing when the amount of information in its firing rate about target location first reached significance (13). The data for each trial were grouped by condition (pop-out or search) and by target location, thus factoring out information about target feat ...
On-line, voluntary control of human temporal lobe
... over the entire experiment, and averaged over all trials for all subjects. For the same retinal input, the firing rate of neurons responding to the target pictures was much higher when subjects focused their attention on the target than when they focused on the distractor. The only difference was th ...
... over the entire experiment, and averaged over all trials for all subjects. For the same retinal input, the firing rate of neurons responding to the target pictures was much higher when subjects focused their attention on the target than when they focused on the distractor. The only difference was th ...
Task demands determine the specificity of the search template Mary
... observers searched for a line oriented at 55 degrees among lines oriented at 50 degrees. Using a physiologically plausible model, the authors demonstrated that 55and 50-degree lines are best discriminated by a feature detector tuned to 60 degrees. They then showed that observers do indeed use a 60- ...
... observers searched for a line oriented at 55 degrees among lines oriented at 50 degrees. Using a physiologically plausible model, the authors demonstrated that 55and 50-degree lines are best discriminated by a feature detector tuned to 60 degrees. They then showed that observers do indeed use a 60- ...
Now you see it: frontal eye field responses to invisible targets
... SOA so that when the target was actually present, the monkeys only made saccades on about half the trials. The beauty of this approach is that an identical visual stimulus can be examined under conditions in which the stimulus does or does not reach perceptual awareness—assuming that the animals mus ...
... SOA so that when the target was actually present, the monkeys only made saccades on about half the trials. The beauty of this approach is that an identical visual stimulus can be examined under conditions in which the stimulus does or does not reach perceptual awareness—assuming that the animals mus ...
Neuropsychologia, 47, 1621-6
... projector itself. A custom-made start button, fastened to the table, was used to record the initiation of the pointing response and to trigger the closure of liquid-crystal display goggles (PLATO, Translucent Technologies) that were worn by the participants. The PLATO goggles were to control stimulu ...
... projector itself. A custom-made start button, fastened to the table, was used to record the initiation of the pointing response and to trigger the closure of liquid-crystal display goggles (PLATO, Translucent Technologies) that were worn by the participants. The PLATO goggles were to control stimulu ...
The Influence of Target Properties and the Possible
... onset to the initiation of a saccade. The elaboration of visual information, at different stages of the cortical and subcortical level, takes time and can be reflected in the reaction time of a saccade (Liversedge, Gilchrist, & Everling, 2011). The minimum saccadic reaction time can be estimated by ...
... onset to the initiation of a saccade. The elaboration of visual information, at different stages of the cortical and subcortical level, takes time and can be reflected in the reaction time of a saccade (Liversedge, Gilchrist, & Everling, 2011). The minimum saccadic reaction time can be estimated by ...
Is In-out asymmetry diagnostic of visual crowding? Ramakrishna
... The letter C is omitted since C and O are much less discriminable than other pairs in the Sloan font (Elliott, Whitaker, & Bonette, 1990). One target and one flanker from this set will be randomly chosen on any given trial. The target will be presented at 8 deg eccentricity at one of four locations ...
... The letter C is omitted since C and O are much less discriminable than other pairs in the Sloan font (Elliott, Whitaker, & Bonette, 1990). One target and one flanker from this set will be randomly chosen on any given trial. The target will be presented at 8 deg eccentricity at one of four locations ...
Roger Sperry`s Classic Experiment (1940`s)
... Frog behavior: Dangle a lure frog will grab it with its tongue. ...
... Frog behavior: Dangle a lure frog will grab it with its tongue. ...
No Slide Title
... tissues including, _______, _______, _______, _____ & _________. The non-immune component’s responses are inhibition of __________, increase of _________ _________ from a.a. and fats. Immune response is _________________ and ...
... tissues including, _______, _______, _______, _____ & _________. The non-immune component’s responses are inhibition of __________, increase of _________ _________ from a.a. and fats. Immune response is _________________ and ...
The Motor System of the Cortex and the Brain Stem
... flow, switches hemispheres when eye movements place the remembered target to the left of the fixation point, as opposed to when they place it to the right of that point. The “activated” regions appear as enclosed areas on an “inflated” map of the cortex. PPC neurons code for movement kinematics and ...
... flow, switches hemispheres when eye movements place the remembered target to the left of the fixation point, as opposed to when they place it to the right of that point. The “activated” regions appear as enclosed areas on an “inflated” map of the cortex. PPC neurons code for movement kinematics and ...
The Motor System of the Cortex and the Brain Stem
... Slide 5. About 30% of the corticospinal fibers originate from the primary motor cortex. Another 30% originate from the premotor cortex. The rest originate from the primary somatosensory and parietal cortex. In humans, there are about 1 million fibers in the corticospinal tract, 800k in the chimpanze ...
... Slide 5. About 30% of the corticospinal fibers originate from the primary motor cortex. Another 30% originate from the premotor cortex. The rest originate from the primary somatosensory and parietal cortex. In humans, there are about 1 million fibers in the corticospinal tract, 800k in the chimpanze ...
Alan Ruttenberg
... – First focused on establishing group/synchronizing – Second focused on making progress on representation of Neurons/Anatomical Structures ...
... – First focused on establishing group/synchronizing – Second focused on making progress on representation of Neurons/Anatomical Structures ...
PFIZER’S CENTERS FOR THERAPEUTIC INNOVATION (CTI)
... associations, biomarkers Further guidance is attached below (for those receiving e‐flyers) or is available from your Tech Transfer Office ...
... associations, biomarkers Further guidance is attached below (for those receiving e‐flyers) or is available from your Tech Transfer Office ...
Point shooting
Point shooting, also known as target- or threat-focused shooting and instinctive shooting, is a method of shooting a firearm quickly and accurately that does not rely on the use of the sights in close quarters, life-threatening situations where there is the greatest chance being killed. Close-quarters fighting makes it difficult to apply proper marksmanship techniques, which is why point shooting advocates a less sighting-based style of shooting.