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1.
РЖ ВИНИТИ 34 (BI24) 95.01-04М3.197

    Tehovnik, Edward J.
    Stimulation-evoked saccades from the dorsomedial frontal cortex of the rhesus monkey following lesions of the frontal eye fields and superior colliculus [Text] / Edward J. Tehovnik, Kyoungmin Lee, Peter H. Schiller // Exp. Brain Res. - 1994. - Vol. 98, N 2. - P179-190 . - ISSN 0014-4819
Перевод заглавия: Саккады, вызванные стимуляцией дорсомедиальной фронтальной коры у обезьян-резусов после повреждений фронтальных глазных полей и верхнего двухолмия
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
ДОРСОМЕДИАЛЬНАЯ ФРОНТАЛЬНАЯ КОРА
ЭЛЕКТРОСТИМУЛЯЦИЯ
ФРОНТАЛЬНЫЕ ГЛАЗНЫЕ ПОЛЯ
ВЕРХНЕЕ
ДВУХОЛМИЕ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Lee, Kyoungmin; Schiller, Peter H.
2.
РЖ ВИНИТИ 34 (BI24) 95.01-04М3.199

    Kingstone, Alan.
    What are human express sarcades? [Text] / Alan Kingstone, Raymond M. Klien // Percept. and Psychophys. - 1993. - Vol. 54, N 2. - P260-273 . - ISSN 0031-5117
Перевод заглавия: Что такое экспресс-саккады у человека?
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДИЧЕСКИЕ ДВИЖЕНИЯ ГЛАЗ
ЭКСПРЕСС-САККАДЫ
ЧЕЛОВЕК

Доп.точки доступа:
Klien, Raymond M.
3.
РЖ ВИНИТИ 34 (BI24) 95.03-04М3.093

    Ohtsuka, Kenji.
    Saccadic burst neurons in the fastigial nucleus are not involved in compensating for orbital nonlinearities [Text] / Kenji Ohtsuka, Hitoshi Sato, Hiroharu Noda // J. Neurophysiol. - 1994. - Vol. 71, N 5. - P1976-1980 . - ISSN 0022-3077
Перевод заглавия: Саккадические взрывные нейроны в фастигиальном ядре не вовлечены в компенсацию орбитальных нелинейностей
Аннотация: Для проверки возможной вовлеченности мозжечка в компенсацию орбитальных нелинейностей регистрировали разряды саккадических взрывных (в-) нейронов (Н) в фастигиальной глазодвигательной обл. (ФГО) во время центрифугальных (цф-) и центрипетальных (цп-) саккад (Ск) у 2 тренированных макаков. Исследовали также метрику цф- и цп-Ск, имеющих одинаковую амплитуду, когда выходной сигнал фастигиального ядра был блокирован мусцимолом (агонист ГАМК), инъецированным в ФГО. Зарегистрированы разряды 32 фастигиальных Н, к-рые тормозились микростимуляцией глазодвигательной обл. червя. Эти Н давали уникальные ответы во время контралатерально и ипсилатерально направленных Ск. паттерн разрядов, пиковая в-частота, время опережения в-разряда были сопоставимы независимо от начальной позиции глаз. Введение мусцимола вызывало гиперметрические Ск в сторону инъекции и гипометрические - в противоположную сторону независимо от цп- или цф-направления Ск. Вывод: ФГО не вовлечен в компенсацию саккадической метрики при орбитальных нелинейностях. Япония, Sapporo Med. College, Sapporo, Hokkaido 060. Библ. 14.
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
МОЗЖЕЧОК
ФАСТИГИАЛЬНОЕ ЯДРО
ВЗРЫВНЫЕ НЕЙРОНЫ
САККАДЫ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Sato, Hitoshi; Noda, Hiroharu
4.
РЖ ВИНИТИ 34 (BI24) 95.05-04М3.109

   
    The presaccadic cortical negativity prior to self-paced saccades with and without visual guidance [Text] / W. Klostermann [et al.] // Elektroencephalogr. and clin. Neurophysiol. - 1994. - Vol. 91, N 3. - P219-228 . - ISSN 0013-4694
Перевод заглавия: Пресаккадическая корковая негативность, предшествующая саккадам, осуществляемым в саморегулируемом темпе, при наличии и в отсутствие зрительного контроля
ГРНТИ  
34.39.17
ВИНИТИ 341.39.17.49.15
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
САМОРЕГУЛИРУЕМЫЙ ТЕМП
КОРА БОЛЬШИХ ПОЛУШАРИЙ
ПРЕСАККАДИЧЕСКИЕ ПОТЕНЦИАЛЫ
ПОТЕНЦИАЛЫ ГОТОВНОСТИ
ЧЕЛОВЕК

Доп.точки доступа:
Klostermann, W.; Kompf, D.; Heide, W.; Verleger, R.; Wauschkuhn, B.; Seyfert, T.
5.
РЖ ВИНИТИ 34 (BI24) 95.08-04М3.151

    Ibbotson, Michael R.
    Wide-field nondirectional visual units in the pretectum: Do they suppress ocular following of saccade-induced visual stimulation [Text] / Michael R. Ibbotson, Richard F. Mark // J. Neurophysiol. - 1994. - Vol. 72, N 3. - P1448-1450 . - ISSN 0022-3077
Перевод заглавия: Недирекциональные зрительные нейроны с широкими рецептивными полями в претектуме: подавляют ли они прослеживающие движения глаз за зрительными стимулами, вызванными саккадами
Аннотация: Direction-selective neurons in the nucleus of the optic tract (NOT) provide motion signals for controlling ocular following responses. When stimulated at low temporal and high spatial frequencies of motion (slow speeds), these retinal-slip neurons produce directional responses. When stimulated by motion at high temporal and low spatial frevuencies (the visual conditions during saccades) the spontaneous activities of the neurons are inhibited by motion in all directions. A second class of neurons in, or near, the NOT have large receptive fields, are nondirectional, and are tuned to detect the same spatial and temporal stimuli that induce nondirectional inhibition in the retinal-slip neurons. We suggest that the nondirectional cells provide an inhibitory input for the retinal-slip neurons and therefore prevent ocular following of the visual displacements that accompany saccades.
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
ПРЕТЕКТУМ
НЕЙРОННАЯ АКТИВНОСТЬ
САККАДЫ
ПРОСЛЕЖИВАЮЩИЕ ДВИЖЕНИЕ ГЛАЗ
КЕНГУРУ

Доп.точки доступа:
Mark, Richard F.
6.
РЖ ВИНИТИ 34 (BI24) 95.09-04М3.187

    Gaymard, B.
    Impairment of extraretinal eye position signals after central thalamic lesions in humans [Text] / B. Gaymard, S. Rivaud, C. Pierrot-Deseilligny // Exp. Brain Res. - 1994. - Vol. 102, N 1. - P1-9 . - ISSN 0014-4819
Перевод заглавия: Ухудшение экстраретинальных сигналов о положении глаз у испытуемых с центральными таламическими повреждениями
Аннотация: Accuracy of 4 different types of memory-guided saccades was studied in 2 patients with a small central thalamic lesion, probably involving the region of the internal medullary lamina (IML), and in a control group. In the first paradigm, the eyes and head remained immobile between the time of the presentation of the visual target to be remembered and the memory-guided saccade. In the other 3 paradigms, the eyes were displaced during the same period (before the memoryguided saccade) by either visually-guided saccades, a smooth pursuit eye movement of a body movement (with vestibulo-ocular reflex suppression). Therefore, in these 3 paradigms, the initial eye displacement required the use of extraretinal eye position to produce accurate memory-guided saccades. Compared with the control group, the 2 patients had normal accuracy in the first memory-guided saccade paradigm, in which there was no initial eye displacement, but markedly impaired saccade accuracy in the other 3 paradigms. These results suggest that the cortical areas triggering saccades did not receive correct extraretinal eye position signals. They are consistent with an impairment of the efference copy, which could be distributed to the cortical ocular motor areas by the IML. Библ. 22.
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
ЭФФЕРЕНТНЫЕ КОПИИ
ТАЛАМУС
ЧЕЛОВЕК

Доп.точки доступа:
Rivaud, S.; Pierrot-Deseilligny, C.
7.
РЖ ВИНИТИ 34 (BI24) 95.09-04М3.188

   
    Eye movement disorders after frontal eye field lesions in humans [Text] / S. Rivaud [et al.] // Exp. Brain Res. - 1994. - Vol. 102, N 1. - P110-120 . - ISSN 0014-4819
Перевод заглавия: Расстройства движений глаз после повреждения фронтального глазного поля у человека
Аннотация: Eye movements were recorded electro-oculographically in 3 patients with a small ischemic lesion affecting the left frontal eye field (FEF) and in 12 control subjects. Reflexive visually guided saccades (gap and overlap tasks), antisaccades, predictive saccades, memory-guided saccades, smooth pursuit and optokinetic nystagmus (OKN) were studied in the 3 patients. Staircase saccades and double step saccades were also studied in 1 of the 3 patients. For both leftward and rightward saccades, latency in the overlap task (but not in the gap task) and that of correct antisaccades and of memory-guided saccades was significantly increased, compared with the results of controls. There was a significant decrease in the amplitude gain of all rightward saccades programmed using retinotopic coordinates (gap and overlap tasks, predictive and memory-guided saccades), whereas the amplitude gain of corresponding leftward saccades was preserved. Such an asymmetry between leftward and rightward saccades was significant. In the staircase paradigm as well as for the first saccade in the double step paradigm (with the use of retinotopic coordinates in both cases), the amplitude gain of rightward saccades was also significantly lower than that of leftward saccades. Moreover, in the double step paradigm, the amplitude gain of the first rightward saccade was significantly lower than that of the second rightward saccade (programmed using extraretinal signals), which was preserved. The percentage of errors in the antisaccade task did not differ significantly from that of normal subjects. In the predictive saccade paradigm, the percentage of predictive rightward saccades was significantly decreased. The left smooth pursuit gain for all tested velocities, the right smooth pursuit gain for higher velocities, and the left OKN gain were significantly decreased. The results show, for the first time in humans, that the FEF plays an important role in (1) the disengagement from central fixation, (2) the control of contralateral saccades programmed using retinotopic coordinates, (3) saccade prediction and (4) the control of smooth pursuit and OKN, mainly ipsilaterally. In contrast, the left FEF did not appear to be crucial for the control of the only type of saccades programmed using extraretinal signals studied here. Библ. 68.
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
ПЛАВНОЕ ПРОСЛЕЖИВАНИЕ
ФРОНТАЛЬНОЕ ГЛАЗНОЕ ПОЛЕ
ЧЕЛОВЕК

Доп.точки доступа:
Rivaud, S.; Muri, R.M.; Gaymard, B.; Vermersch, A.I.; Pierrot-Deseilligny, C.
8.
РЖ ВИНИТИ 34 (BI24) 95.12-04М3.341

    Peck, Carol K.
    Effects of eye position on saccadic eye movements and on the neuronal responses to auditory and visual stimuli in cat superior colliculus [Text] / Carol K. Peck, John A. Baro, Stephanie M. Warder // Exp. Brain Res. - 1995. - Vol. 103, N 2. - P227-242 . - ISSN 0014-4819
Перевод заглавия: Влияние позиции глаза на саккадические движения глаз и реакции нейронов верхнего двухолмия на слуховые и зрительные стимулы у кошки
Аннотация: The authors investigated the effects of eye position on the response of sound-sensitive neurons in the superior colliculus (SC) of cats and the effects of eye position on the accuracy of saccades to auditory, visual, and bimodal stimuli. All studies were conducted in alert, trained cats with the head restrained in a fixed position. Neuronal and behavioral responses were studied during periods when the eyes were steadily directed to different positions relative to the position of the sound. Cats showed partial compensation for eye position in making saccades, regardless of the modality of the target, and they showed similar patterns of error in saccades to auditory and visual targets. In the vast majority of intermediate-layer neurons, eye position significantly affected the number of spikes evoked by sound stimuli. For most of these neurons, changes in eye position produced significant shifts in the speaker location producing maximal response. In some neurons, eye position significantly facilitated the magnitude of neuronal response evoked by sounds from a variety of speaker locations. The results indicate that the deep layers of the SC contain an eye-centered representation of sound location. Because eye position did not affect the percentage of neurons exhibiting multimodal integration, visual and auditory maps appear to remain integrated in the SC even when the eyes are directed eccentrically. Examination of the effects of eye position on neuronal responses to visual stimuli revealed that a substantial minority of neurons showed quantitative changes in the magnitude of response to visual stimuli when the retinal locus of stimulation was held constant. Библ. 43
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.15
Рубрики: ЗРИТЕЛЬНАЯ СИСТЕМА
ВЕРХНЕЕ ДВУХОЛМИЕ
СЛУХОВЫЕ РЕАКЦИИ
САККАДЫ
МУЛЬТИСЕНСОРНАЯ КОНВЕРГЕНЦИЯ
КОШКИ

Доп.точки доступа:
Baro, John A.; Warder, Stephanie M.
9.
РЖ ВИНИТИ 34 (BI24) 95.12-04М3.355

    Базиян, Б. Х.
    Динамика изменений зрительных вызванных потенциалов различных структур зрительного анализатора на разных фазах горизонтальных саккадических движений глаз кошки [Текст] / Б. Х. Базиян // Бюл. эксперим. биол. и мед. - 1995. - Т. 119, N 6. - С. 574-577 . - ISSN 0365-9615
Аннотация: На кошках с фиксацией головы в гомогенном зрительном поле изучали вызванные потенциалы переднего двухолмия, подушки, наружного коленчатого тела и стриарной коры на короткую вспышку света, подаваемую при фиксации взора, до и на разных фазах развития саккады на 20'ГРАДУС'. Показано, что во время саккады наряду с эфферентной копией в зрительном подавлении участвует проприоцептивная афферентация от внешних глазных мышц, причем колликуло-пульвинарные структуры являются основными, с помощью которых осуществляется подавление. Библ. 14
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.15
Рубрики: ЗРИТЕЛЬНАЯ СИСТЕМА
ВЫЗВАННЫЕ ПОТЕНЦИАЛЫ
ГОРИЗОНТАЛЬНЫЕ САККАДЫ
ОБЕЗЬЯНЫ
10.
РЖ ВИНИТИ 34 (BI24) 95.12-04М3.365

    Helmchen, C.
    Saccade-related purkinje cell activity in the oculomotor vermis during spontaneous eye movements in light and darkness [Text] / C. Helmchen, U. Buttner // Exp. Brain Res. - 1995. - Vol. 103, N 2. - P198-208 . - ISSN 0014-4819
Перевод заглавия: Связанная с саккадами активность клеток Пуркинье в глазодвигательной области червя [мозжечка] во время спонтанных движений глаз в темноте и на свету
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
МОЗЖЕЧОК
ЧЕРВЬ
ПУРКИНЬЕ КЛЕТКИ
НЕЙРОННАЯ АКТИВНОСТЬ
САККАДЫ
СПОНТАННЫЕ ДВИЖЕНИЯ ГЛАЗ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Buttner, U.
11.
РЖ ВИНИТИ 34 (BI24) 95.12-04М3.367

    Baro, John A.
    Express saccades in cat: Effects of task and target modality [Text] / John A. Baro, Howard C. Hughes, Carol K. Peck // Exp. Brain Res. - 1995. - Vol. 103, N 2. - P209-217 . - ISSN 0014-4819
Перевод заглавия: Экспресс-саккады у кошки: влияние задачи и модальности цели
Аннотация: Saccadic eye movements to visual, auditory, and bimodal targets were measured in 4 adult cats. Bimodal targets were visual and auditory stimuli presented simultaneously at the same location. Three behavioral tasks were used: a fixation task and two saccadic tracking tasks (gap and overlap task). In the fixation task, a sensory stimulus was presented at a randomly selected location, and the saccade to fixate that stimulus was measured. In the gap and overlap tasks, a second target (hereafter called the saccade target) was presented after the cat had fixated the first target. In the gap task, the fixation target was switched off before the saccade target was turned on; in the overlap task, the saccade target was presented before the fixation target was switched off. All tasks required the cats to redirect their gaze toward the target (within a specified degree of accuracy) within 500 ms of target onset, and in all tasks target positions were varied randomly over five possible locations along the horizontal meridian within the cat's oculomotor range. In the gap task, a significantly greater proportion of saccadic reaction times (SRTs) were less than 125 ms, and mean SRTs were significantly shorter than in the fixation task. With visual targets, saccade latencies were significantly shorter in the gap task than in the overlap task, while, with bimodal targets, saccade latencies were similar in the gap and overlap tasks. On the fixation task, SRTs to auditory targets were longer than those to either visual or bimodal targets, but on the gap task, SRTs to auditory targets were shorter than those to visual or bimodal targetns. Библ. 27
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
ОРИЕНТИРОВОЧНАЯ РЕАКЦИЯ
ЭКСПРЕСС-САККАДЫ
ВНИМАНИЕ
ВРЕМЯ РЕАКЦИИ
ФИКСАЦИЯ ВЗОРА
КОШКИ

Доп.точки доступа:
Hughes, Howard C.; Peck, Carol K.
12.
РЖ ВИНИТИ 34 (BI24) 96.03-04М3.400

   
    Topography of visual cortex connections with frontal eye field in macaque: Convergence and segregation of processing streams [Text] / Jeffrey D. Schall [et al.] // J. Neurosci. - 1995. - Vol. 15, N 6. - P4464-4487 . - ISSN 0270-6474
Перевод заглавия: Топография связей зрительной коры с фронтальным глазным полем у макаков: конвергенция и выделение информационных потоков
Аннотация: The primate visual system consists of at least two processing streams, one passing ventrally into temporal cortex that is responsible for object vision, and the other running dorsally into parietal cortex that is responsible for spatial vision. How information from these two streams is combined for perception and action is not understood. Visually guided eye movements require information about both feature identity and location, so we investigated the topographic organization of visual cortex connections with frontal eye field (FEF), the final stage of cortical processing for saccadic eye movements. Multiple anatomical tracers were placed either in parietal and temporal cortex or in different parts of FEF in individual macaque monkeys. Convergence from the dorsal and ventral processing streams occurred in lateral FEF but not in medial FEF. Certain extrastriate areas with retinotopic visual field organizations projected topographically onto FEF. The dorsal bank of the superior temporal sulcus projected to medial FEF; the ventral bank, to lateral FEF, and the fundus, throughout FEF. Библ. 108
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.15
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
ЗРИТЕЛЬНАЯ КОРА
ЭКСТРАСТРИАРНАЯ КОРА
ФРОНТАЛЬНОЕ ГЛАЗНОЕ ПОЛЕ
ДВИЖЕНИЯ ГЛАЗ
САККАДЫ
ПАРАЛЛЕЛЬНЫЕ ПРОВОДЯЩИЕ ПУТИ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Schall, Jeffrey D.; Morel, Anne; King, Dana J.; Bullier, Jean
13.
РЖ ВИНИТИ 34 (BI24) 96.03-04М3.410

   
    Saccade target selection in frontal eye field of macaque [Text]. I. Visual and premovement activation / Jeffrey D. Schall [et al.] // J. Neurosci. - 1995. - Vol. 15, N 10. - P6905-6918 . - ISSN 0270-6474
Перевод заглавия: Выбор цели для саккады во фронтальном глазном поле у макаков. I. Зрительная и предшествующая движению активация
Аннотация: The authors investigated how the brain selects the targets for eye movements, a process in which the outcome of visual processing is converted into guided action. Macaque monkeys were trained to make a saccade to fixate a salient target presented either alone or with multiple distractors during visual search. Neural activity was recorded in the frontal eye field, a cortical area at the interface of visual processing and eye movement producton. Neurons discharging after stimulus presentation and before saccade initiation were analyzed. The initial visual response of frontal eye field neurons was modulated by the presence of multiple stimuli and by whether a saccade was going to be produced, but the initial visual response did not discriminate the target of the search array from the distractors. In the latent period before saccade initiation, the activity of most visually responsive cells evolved to signal the location of the target. Target selection occurred through suppression of distractor evoked activity contingent on the location of the target relative to the receptive field. The evolution of a signal specifying the location of the salient target could be dissociated from saccade initiation in some cells and could occur even when fixation was maintained. Neural activity in the frontal eye fields may participate in or be the product of the decision process guiding eye movements. Библ. 62
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
ВЫБОР ЦЕЛИ
ФРОНТАЛЬНОЕ ГЛАЗНОЕ ПОЛЕ
ЗРИТЕЛЬНЫЙ ПОИСК
ОБЕЗЬЯНЫ

Доп.точки доступа:
Schall, Jeffrey D.; Hanes, Doug P.; Thompson, Kirk G.; King, Dana J.
14.
РЖ ВИНИТИ 34 (BI24) 96.04-04М3.258

   
    Spatial localization: Tests of a two-process model [Text] / Jos J. Adam [et al.] // Exp. Brain Res. - 1995. - Vol. 102, N 3. - P531-539 . - ISSN 0014-4819
Перевод заглавия: Пространственная локализация: тестирование модели двух процессов
Аннотация: The present study examined the recently proposed two-process model of localization performance in which a shift of attention, providing coarse location information, is followed by a saccadic eye movement, providing fine location information. In experiment 1 the nature of the localization response was manipulated. In contrast to the indirect response mode used in the study by Adam et al., i. e., manipulating the "arrow" keys to move the cursor to the target location, experiment 1 required subjects to point to the target location. The high degree of similarity between the pattern of results obtained with the pointing and cursor response indicated that performance in the localization paradigm was not differentially affected by the nature of the required response. In experiment 2 the characteristics of the backward masking stimulus was manipulated by employing three masking conditions: (1) a long-duration mask; (2) a short-duration mask (100 ms); and (3) a nomask condition. Библ. 32
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
ДВИЖЕНИЯ ГЛАЗ
САККАДЫ
ВНИМАНИЕ
ЛОКАЛИЗАЦИЯ ОБЪЕКТА
ЧЕЛОВЕК

Доп.точки доступа:
Adam, Jos J.; Paas, Fred G.W.C.; Ekering, Jop; Loon, Editha M.van
15.
РЖ ВИНИТИ 34 (BI24) 96.04-04М3.259

    Sheliga, B. M.
    Spatial attention and eye movements [Text] / B. M. Sheliga, L. Riggio, G. Rizzolatti // Exp. Brain Res. - 1995. - Vol. 105, N 2. - P261-275 . - ISSN 0014-4819
Перевод заглавия: Пространственное внимание и движения глаз
Аннотация: Three experiments were carried out. In experiment 1 the location of the imperative stimulus was uncued. Its presentation exogenously derected attention to its location. In experiment 2 the location of the imperative stimulus was cued by a central cognitive cue. In this experiment attention was endogenously directed to the imperative stimulus location before its presentation (expectancy paradigm). In experiment 3 all stimulus boxes contained a possible imperative stimulus at the display presentation. A central cue. presented subsequently, indicated which of them had to be used for the saccade. In this experiment attention was endogenously directed to the imperative stimulus, but after its presentation (no-expectancy paradigm). The results showed that, regardless of how attention was directed to the imperative stimulus, the vertical saccades deviated contralateral to the attention location. The deviation was larger when attention was in the upper field and the saccade was directed upward ("same hemifield" condition) than when attention was in the upper field and the saccade was directed downward ("opposite hemifield" condition). The same relationship between the "same hemifield" condition and "opposite hemifield" condition was found when attention was in the lower field. Saccadic reaction times (SRTs) were shortest in experiment 2 and longest in experiment 3. In experiment 2, SRTs of the "same hemifield" condition were significantly longer than those of the "opposite hemifield" condition. Библ. 66
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
ПРОСТРАНСТВЕННОЕ ВЛИЯНИЕ
ЧЕЛОВЕК

Доп.точки доступа:
Riggio, L.; Rizzolatti, G.
16.
РЖ ВИНИТИ 34 (BI24) 96.04-04М3.263

    Hanes, Doug P.
    Relationship of presaccadic activity in frontal eye field and supplementary eye field to saccade initiation in macaque": Poisson spike train analysis [Text] / Doug P. Hanes, Kirk G. Thompson, Jeffrey D. Schall // Exp. Brain Res. - 1995. - Vol. 103, N 1. - P85-96 . - ISSN 0014-4819
Перевод заглавия: Связь пресаккадической активности во фронтальном глазном поле и дополнительном глазном поле с началом саккады у макака: анализ последовательностей спайков с помощью распределения Пуассона
Аннотация: The purpose of this study was to investigate the temporal relationship between presaccadic neuronal discharges in the frontal eye fields (FEF) and supplementary eye fields (SEF) and the initiation of saccadic eye movements in macaque. The authors utilized an analytical technique that could reliably identify periods of neuronal modulation in individual spike trains. By comparing the observed activity of neurons with the random Poisson distribution generated from the mean discharge rate during the trial period, the period during which neural activity was significantly elevated with a predetermined confidence level was identified in each spike train. In certain neurons, bursts of action potentials were identified by determining the period in each spike train in which the activation deviated most from the expected Poisson distribution. Using this method, the authors related these defined periods of modulation to saccade initiation in specific cell types recorded in FEF and SEF. Cells were recorded in SEF while monkeys made saccades to targets presented alone. Cells were recorded in FEF while monkeys made saccades to targets presented alone or with surrounding distractors. There were no significant differences in the timecourse of activity of the population of FEF presaccadic movement cells prior to saccades generated to singly presented or distractor-embedded targets. The discharge of presaccadic movement cells in FEF and SEF could be subdivided quantitatively into an early prelude followed by a high-rate burst of activity that occurred at a consistent interval before saccade initiation. The time of burst onset relative to saccade onset in SEF presaccadic movement cells was earlier and more variable than in FEF presaccadic movement cells. The termination of activity of another population of SEF neurons, was time-locked to saccade initiation. Библ. 54
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
ФРОНТАЛЬНОЕ ГЛАЗНОЕ ПОЛЕ
ДОПОЛНИТЕЛЬНОЕ ГЛАЗНОЕ ПОЛЕ
ПОСЛЕДОВАТЕЛЬНОСТИ СПАЙКОВ
ПУАССОНА РАСПРЕДЕЛЕНИЕ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Thompson, Kirk G.; Schall, Jeffrey D.
17.
РЖ ВИНИТИ 34 (BI38) 96.05-04А3.70

    Sheliga, B. M.
    Spatial attention and eye movements [Text] / B. M. Sheliga, L. Riggio, G. Rizzolatti // Exp. Brain Res. - 1995. - Vol. 105, N 2. - P261-275 . - ISSN 0014-4819
Перевод заглавия: Пространственное внимание и движения глаз
Аннотация: Three experiments were carried out. In experiment 1 the location of the imperative stimulus was uncued. Its presentation exogenously derected attention to its location. In experiment 2 the location of the imperative stimulus was cued by a central cognitive cue. In this experiment attention was endogenously directed to the imperative stimulus location before its presentation (expectancy paradigm). In experiment 3 all stimulus boxes contained a possible imperative stimulus at the display presentation. A central cue. presented subsequently, indicated which of them had to be used for the saccade. In this experiment attention was endogenously directed to the imperative stimulus, but after its presentation (no-expectancy paradigm). The results showed that, regardless of how attention was directed to the imperative stimulus, the vertical saccades deviated contralateral to the attention location. The deviation was larger when attention was in the upper field and the saccade was directed upward ("same hemifield" condition) than when attention was in the upper field and the saccade was directed downward ("opposite hemifield" condition). The same relationship between the "same hemifield" condition and "opposite hemifield" condition was found when attention was in the lower field. Saccadic reaction times (SRTs) were shortest in experiment 2 and longest in experiment 3. In experiment 2, SRTs of the "same hemifield" condition were significantly longer than those of the "opposite hemifield" condition. Библ. 66
ГРНТИ  
34.55.21
ВИНИТИ 341.55.21.13.09
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
САККАДЫ
ПРОСТРАНСТВЕННОЕ ВЛИЯНИЕ
ЧЕЛОВЕК

Доп.точки доступа:
Riggio, L.; Rizzolatti, G.
18.
РЖ ВИНИТИ 34 (BI24) 96.05-04М3.305

    Munoz, Douglas P.
    Saccade-related activity in monkey superior colliculus [Text]. II. Spread of activity during saccades / Douglas P. Munoz, Robert H. Wurtz // J. Neurophysiol. - 1995. - Vol. 73, N 6. - P2334-2348 . - ISSN 0022-3077
Перевод заглавия: Связанная с саккадами активность верхнего двухолмия у обезьян. II Распространение активности во время саккад
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
ВЕРХНЕЕ ДВУХОЛМИЕ
РАСПРОСТРАНЕНИЕ АКТИВНОСТИ
САККАДЫ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Wurtz, Robert H.
19.
РЖ ВИНИТИ 34 (BI24) 96.05-04М3.306

    Munoz, Douglas P.
    Saccade-related activity in monkey superior colliculus [Text]. I. Characteristics of burst and buildup cells / Douglas P. Munoz, Robert H. Wurtz // J. Neurophysiol. - 1995. - Vol. 73, N 6. - P2313-2333 . - ISSN 0022-3077
Перевод заглавия: Связанная с саккадами активность верхнего двухолмия у обезьян. I Характеристики клеток с пачечными и медленными build-разрядами
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
ВЕРХНЕЕ ДВУХОЛМИЕ
НЕЙРОННАЯ АКТИВНОСТЬ
ПАЧЕЧНЫЕ РАЗРЯДЫ
BUILD-РАЗРЯДЫ
САККАДЫ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Wurtz, Robert H.
20.
РЖ ВИНИТИ 34 (BI24) 96.05-04М3.310

    Russo, Gary S.
    Frontal eye field activity preceding aurally guided saccades [Text] / Gary S. Russo, Charles J. Bruce // J. Neurophysiol. - 1994. - Vol. 71, N 3. - P1250-1253 . - ISSN 0022-3077
Перевод заглавия: Активность фронтального глазного поля, предшествующая саккадам, контролируемым слухом
ГРНТИ  
34.39.19
ВИНИТИ 341.39.19.09.19
Рубрики: ГЛАЗОДВИГАТЕЛЬНАЯ СИСТЕМА
ФРОНТАЛЬНОЕ ГЛАЗНОЕ ПОЛЕ
НЕЙТРОННАЯ АКТИВНОСТЬ
САККАДЫ
СЛУХОВОЙ КОНТРОЛЬ
ОБЕЗЬЯНЫ

Доп.точки доступа:
Bruce, Charles J.
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