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Article
Long-term retention of motor skill in macaque monkeys and humans
Remarkable human performance, such as playing the violin, is often based on motor skills that, once acquired, are retained for a long time. To examine how motor skills are retained, we trained monkeys and hum...
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Article
Characteristics of a long-term procedural skill in the monkey
The purpose of this study was to characterize the nature and structure of procedural memory. We have previously studied the process of learning sequential behavioral procedures using monkeys. The monkey’s tas...
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Article
Differential roles of monkey striatum in learning of sequential hand movement
To study the role of the basal ganglia in learning of sequential movements, we trained two monkeys to perform a sequential button-press task (2×5 task). This task enabled us to examine the process of learning...
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GTP Cyclohydrolase I in Inherited Dystonia and Its Pathophysiological Importance
Hereditary progressive dystonia with marked diurnal fluctuation (HPD) is an autosomally dominantly inherited postural dystonia with onset in childhood and is characterized by marked diurnal fluctuation of symp...
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Article
Cell activity in monkey caudate nucleus preceding saccadic eye movements
Single cell activity was recorded in the monkey caudate nucleus. The monkey fixated a visual target, and, if the target jumped, followed it by making a saccade. A group of cells showed spike discharges before ...
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Article
Saccadic eye movements following injection of lidocaine into the superior colliculus
Ablation of the superior colliculus (SC) has generally produced limited deficits in the initiation of saccadic eye movements, usually an increase in the latency of saccades. However, recent studies using musci...
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Article
Vertical neuronal arrays in the postcentral gyrus signaling active touch: a receptive field study in the conscious monkey
Single neuronal activity was recorded in the crown of the postcentral gyrus (areas 1 and 2) in 5 conscious monkeys. A total of 88 penetrations entered perpendicularly to the cortical surface. Among them, 6 exa...
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Article
Diversity in receptive field properties of vertical neuronal arrays in the crown of the postcentral gyrus of the conscious monkey
Single neuronal activity was recorded in the crown of the postcentral gyrus (areas 1 and 2) in 5 conscious monkeys. A total of 93 penetrations were made in the hand and finger region of 9 hemispheres and 827 n...
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Article
Converging patterns of finger representation and complex response properties of neurons in area 1 of the first somatosensory cortex of the conscious monkey
The representation of the hand and fingers in area 1 of the first somatosensory cortex was studied in conscious monkeys by recording single neuronal activity. The results are as follows.
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Article
Functional subdivisions representing different finger regions in area 3 of the first somatosensory cortex of the conscious monkey
The representation of fingers in the first somatosensory cortex was studied in conscious monkeys by recording single neuronal activity, and the following results were obtained:
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Article
Spatio-temporal patterns of pre- and postsynaptic inhibition induced by primary afferent activation in the trigeminal sensory nucleus in cats
Spatio-temporal patterns of pre- and postsynaptic inhibition were studied in the trigeminal spinal nucleus oralis of cats by means of systematic electrical stimulation of the facial skin.
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Article
Axonal projection of prepositus hypoglossi and reticular neurons in the brainstem of the cat
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Extracellular unit spikes responsive to horizontal head rotation were recorded in and around the cat nucleus ...
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Article
Inhibitory connections of nystagmus-related reticular burst neurons with neurons in the abducens, prepositus hypoglossi and vestibular nuclei in the cat
Action potentials of inhibitory burst neurons (IBNs) were extracellularly recorded in the pontomedullary reticular formation in the cat. These neurons were identified by their burst activity coincident with th...
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Article
Direct inhibitory synaptic linkage of pontomedullary reticular burst neurons with abducens motoneurons in the cat
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Unit spikes of burst neurons were extracellularly recorded in the pontomedullary reticular formation of the c...
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Article
Inhibitory reticular neurons related to the quick phase of vestibular nystagmus — Their location and projection
The medial brain stem was explored mainly in the vicinity of the abducens nucleus to find interneurons related to the quick phase of vestibular nystagmus in the cat. Most neurons exhibiting a burst of spikes s...
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Article
Presynaptic impulses in the abducens nucleus and their relation to postsynaptic potentials in motoneurons during vestibular nystagmus
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Unit spikes of axons projecting to the abducens nucleus and responding to horizontal rotation of the head wer...
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Article
Cervical effects on abducens motoneurons and their interaction with vestibulo-ocular reflex
The effect of neck afferents on abducens motoneurons and their interaction with the vestibulo-abducens reflex were examined in chloraloseanesthetized or unanesthetized, decerebrate cats. The test reflex elicit...
