Muscimol-Induced Inactivation of Monkey Frontal Eye Field: Effects
... Effects on Visually and Memory-Guided Saccades ELISA C. DIAS AND MARK A. SEGRAVES Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois, 60208 Dias, Elisa C. and Mark A. Segraves. Muscimol-induced inactivation of the monkey frontal eye field: effects on visually and ...
... Effects on Visually and Memory-Guided Saccades ELISA C. DIAS AND MARK A. SEGRAVES Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois, 60208 Dias, Elisa C. and Mark A. Segraves. Muscimol-induced inactivation of the monkey frontal eye field: effects on visually and ...
Functions of the nucleus of the optic tract (NOT).
... General methods of data analysis Each channel of eye position was smoothed by sequentially averaging four sampling intervals. The waveform signals were digitally differentiated by finding the slope of the least-squares linear fit to 11 data points. This corresponded to a filter that had a 3 db cutof ...
... General methods of data analysis Each channel of eye position was smoothed by sequentially averaging four sampling intervals. The waveform signals were digitally differentiated by finding the slope of the least-squares linear fit to 11 data points. This corresponded to a filter that had a 3 db cutof ...
The transference of benefits between the eyes Does
... correlates to hemispheric dominance, that it is egocentric or that there is a single dominant eye for each person. But it seems that no conclusive empirical evidence supports these theories (Mapp et al., 2003). Mapp et al. (2003), however, suggest that the dominant eye should be the eye used for mon ...
... correlates to hemispheric dominance, that it is egocentric or that there is a single dominant eye for each person. But it seems that no conclusive empirical evidence supports these theories (Mapp et al., 2003). Mapp et al. (2003), however, suggest that the dominant eye should be the eye used for mon ...
Hands Up: Attentional Prioritization of Space Near the Hand
... location. Thus, these neurons are said to represent the position of stimuli relative to the hand. In other words, they represent an object’s position in hand-centered coordinates, not in retinal- or head-centered coordinates. The response patterns of such neurons suggest that the strength of a given ...
... location. Thus, these neurons are said to represent the position of stimuli relative to the hand. In other words, they represent an object’s position in hand-centered coordinates, not in retinal- or head-centered coordinates. The response patterns of such neurons suggest that the strength of a given ...
Saccade Target Selection in the Superior - Smith
... animals were returned to their home cages. After 2–3 mo of training in behavioral tasks, described in the following text, the monkeys were prepared for chronic single-unit recording in a second aseptic surgery. ...
... animals were returned to their home cages. After 2–3 mo of training in behavioral tasks, described in the following text, the monkeys were prepared for chronic single-unit recording in a second aseptic surgery. ...
Frontal Eye Field Neurons Reflect Covert, Serial Shifts of Attention
... estimating the time to shift attention does not assume a consistent search pattern or starting point, only that the animal performed a serial search. This is in contrast to a simple estimation of the time to shift attention directly from the raw reaction times observed during the recording sessions ...
... estimating the time to shift attention does not assume a consistent search pattern or starting point, only that the animal performed a serial search. This is in contrast to a simple estimation of the time to shift attention directly from the raw reaction times observed during the recording sessions ...
Visual detection deficits following inactivation of the superior colliculus in the cat
... et al., 1982; Overton & Dean, 1988; Lomber et al., 2001). Unfortunately, the interpretation of these studies is limited because of one or more of the following considerations: (1) Most of these experiments used permanent ablation of the SC rather than reversible inactivation. SC ablation initially p ...
... et al., 1982; Overton & Dean, 1988; Lomber et al., 2001). Unfortunately, the interpretation of these studies is limited because of one or more of the following considerations: (1) Most of these experiments used permanent ablation of the SC rather than reversible inactivation. SC ablation initially p ...
Response Suppression in V1 Agrees with Psychophysics of
... consisting of a 750 msec stimulus display, followed by a 1050 msec response period. For one observer (BZL), the response period was reduced to 750 msec, and each block, thus, contained six instead of five trials. The surround contrast was the same in all trials of any given scan, but the pedestal co ...
... consisting of a 750 msec stimulus display, followed by a 1050 msec response period. For one observer (BZL), the response period was reduced to 750 msec, and each block, thus, contained six instead of five trials. The surround contrast was the same in all trials of any given scan, but the pedestal co ...
Retrieval induces adaptive forgetting of competing memories via
... Remembering a past experience can, surprisingly, cause forgetting. Forgetting arises when other competing traces interfere with retrieval and inhibitory control mechanisms are engaged to suppress the distraction they cause. This form of forgetting is considered to be adaptive because it reduces futu ...
... Remembering a past experience can, surprisingly, cause forgetting. Forgetting arises when other competing traces interfere with retrieval and inhibitory control mechanisms are engaged to suppress the distraction they cause. This form of forgetting is considered to be adaptive because it reduces futu ...
Separate Representations of Target and Timing Cue Locations in
... oculomotor network and both are connected to several other areas such as temporal and lateral prefrontal cortices (Andersen 1995; Huerta and Kaas 1990; Lynch and Tian 2006). LIP sits at the interface between sensory and motor cortices (Andersen and Buneo 2002), whereas SEF is in the frontal cortex. ...
... oculomotor network and both are connected to several other areas such as temporal and lateral prefrontal cortices (Andersen 1995; Huerta and Kaas 1990; Lynch and Tian 2006). LIP sits at the interface between sensory and motor cortices (Andersen and Buneo 2002), whereas SEF is in the frontal cortex. ...
From Thought to Action
... neuron or network, and "communication" when described as occuring between neurons or networks. These word choices have inspired the analysis of neural systems in analogy to computation and data transmission problems. A spike generates a transient millivolt or picoampere surge in a measurement electr ...
... neuron or network, and "communication" when described as occuring between neurons or networks. These word choices have inspired the analysis of neural systems in analogy to computation and data transmission problems. A spike generates a transient millivolt or picoampere surge in a measurement electr ...
Visual Cortex and Control Processes Stimuli in Opposite Visual
... which the distractor (when present). By precluding spatial anticipatory effects in this way, we could better examine effects of competition for attention on activations in visual cortex during on-line selection. To do so, we compared unilateral target-alone trials for a particular target side agains ...
... which the distractor (when present). By precluding spatial anticipatory effects in this way, we could better examine effects of competition for attention on activations in visual cortex during on-line selection. To do so, we compared unilateral target-alone trials for a particular target side agains ...
Document
... stimuli were invisible to the SC, Sumner and al. presented luminance noise at the two possible target positions (see Figure 3). The target was luminance-defined (black dot), while the distractor was chromatically defined. Because the luminance noise made the luminance-defined target less salient, it ...
... stimuli were invisible to the SC, Sumner and al. presented luminance noise at the two possible target positions (see Figure 3). The target was luminance-defined (black dot), while the distractor was chromatically defined. Because the luminance noise made the luminance-defined target less salient, it ...
Proteus: Visual Analogy in Problem Solving
... retrieving from memory the source case most similar to the target problem, mapping (or aligning) the the elements of target and the source, transferring knowledge from the source to the target, evaluating what was transferred in the context of the target, and storing the target in memory. These task ...
... retrieving from memory the source case most similar to the target problem, mapping (or aligning) the the elements of target and the source, transferring knowledge from the source to the target, evaluating what was transferred in the context of the target, and storing the target in memory. These task ...
Large-Field Visual Motion Directly Induces an Involuntary Rapid
... trials. The selected target was extinguished when the hand had traveled 8 cm in the y direction from the start position. Success was immediately given by a beeping sound if the hand had correctly passed the hitting target position (1 ⫻ 1 cm square) within 0.3– 0.7 s after the go signal. In other wor ...
... trials. The selected target was extinguished when the hand had traveled 8 cm in the y direction from the start position. Success was immediately given by a beeping sound if the hand had correctly passed the hitting target position (1 ⫻ 1 cm square) within 0.3– 0.7 s after the go signal. In other wor ...
Neurons in Anterior Cingulate Cortex Multiplex
... central square disappeared and the monkey recording location can be found in the supplemental data (available at www.jneurosci.org as supplemental material). D, Perforwas free to shift gaze to one of the peripheral mance of both monkeys on this task. Plot of average likelihood of choosing the optima ...
... central square disappeared and the monkey recording location can be found in the supplemental data (available at www.jneurosci.org as supplemental material). D, Perforwas free to shift gaze to one of the peripheral mance of both monkeys on this task. Plot of average likelihood of choosing the optima ...
Saccades and multisaccadic gaze shifts are gated by different
... of 37 neurons (“complex” (C-) OPNs) were different: (1) the pause duration was not correlated with the duration of self-initiated saccades; (2) time lead of pause onsets relative to saccades was, on average, longer than in the group of S-OPNs, and firing resumed after the saccade end; (3) visual tar ...
... of 37 neurons (“complex” (C-) OPNs) were different: (1) the pause duration was not correlated with the duration of self-initiated saccades; (2) time lead of pause onsets relative to saccades was, on average, longer than in the group of S-OPNs, and firing resumed after the saccade end; (3) visual tar ...
Neuronal Activity in Substantia Nigra Pars Reticulata during Target
... SNr neuronal activity, we used the same multitarget task that we used previously for recordings in the SC (Basso and Wurtz, 1998). The details of this task are described below. In the multitarget task (Fig. 1), our goal was to separate the sequence of events leading up to saccade generation while va ...
... SNr neuronal activity, we used the same multitarget task that we used previously for recordings in the SC (Basso and Wurtz, 1998). The details of this task are described below. In the multitarget task (Fig. 1), our goal was to separate the sequence of events leading up to saccade generation while va ...
A perceptual representation in the frontal eye field during covert
... 0.26 ± 0.15) positions. The performance accuracy at these locations was significantly greater than the chance level of 50% (mean percentage correct: upper-left, 62.5%; t-test, t13 = 3.606, P = 0.003; lower-left, 73.8%; t13 = 6.096, P < 0.001). This indicates that the monkey understood the rules of th ...
... 0.26 ± 0.15) positions. The performance accuracy at these locations was significantly greater than the chance level of 50% (mean percentage correct: upper-left, 62.5%; t-test, t13 = 3.606, P = 0.003; lower-left, 73.8%; t13 = 6.096, P < 0.001). This indicates that the monkey understood the rules of th ...
Differences in Control of Limb Dynamics During Dominant and
... School of Health Related Professions, State University of New York at Buffalo, Buffalo, New York 14214 Sainburg, R. L. and D. Kalakanis. Differences in control of limb dynamics during dominant and nondominant arm reaching. J. Neurophysiol. 83: 2661–2675, 2000. This study compares the coordination pa ...
... School of Health Related Professions, State University of New York at Buffalo, Buffalo, New York 14214 Sainburg, R. L. and D. Kalakanis. Differences in control of limb dynamics during dominant and nondominant arm reaching. J. Neurophysiol. 83: 2661–2675, 2000. This study compares the coordination pa ...
PDF
... bioRxiv preprint first posted online May. 17, 2017; doi: http://dx.doi.org/10.1101/137026. The copyright holder for this preprint (which was not peer-reviewed) is the author/funder. It is made available under a CC-BY-NC 4.0 International license. ...
... bioRxiv preprint first posted online May. 17, 2017; doi: http://dx.doi.org/10.1101/137026. The copyright holder for this preprint (which was not peer-reviewed) is the author/funder. It is made available under a CC-BY-NC 4.0 International license. ...
The Physiology of the Senses
... each word in this sentence. Vision is poor during saccades because the image of the words is sweeping across the retina. To minimize this time of poor vision, saccades are the fastest movements the body can make, up to 1000 degrees per second. Get a friend. Watch their eyes while they try to make a ...
... each word in this sentence. Vision is poor during saccades because the image of the words is sweeping across the retina. To minimize this time of poor vision, saccades are the fastest movements the body can make, up to 1000 degrees per second. Get a friend. Watch their eyes while they try to make a ...
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 ...
Neuronal Clusters in the Primate Motor Cortex during Interception of
... 1 and 4. The magnitude of such ``early'' activation was affected by the initial target velocity (Figure 6). Out of nine different target conditions, each defined by a unique combination of TMT and target acceleration, the onset of movement was substantially delayed from the target onset in five cond ...
... 1 and 4. The magnitude of such ``early'' activation was affected by the initial target velocity (Figure 6). Out of nine different target conditions, each defined by a unique combination of TMT and target acceleration, the onset of movement was substantially delayed from the target onset in five cond ...
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.