نتایج جستجو برای: cortical neurons
تعداد نتایج: 254067 فیلتر نتایج به سال:
Animal sounds, as well as human speech sounds, are characterized by multiple parameters such as frequency, intensity, duration, etc. The central auditory system produces neurons tuned to particular durations and frequencies of sounds emitted by a species. In bats, "duration-tuned" neurons are mostly sensitive to short durations and high frequencies of sounds used for echolocation. They are scat...
Background: Assisted fertilization procedures are a currently widespread practice to regulate reproduction in humans and animals. The arising question is why the human being manipulating gametes to generate new individuals, if we do not understand yet the molecular mechanism of fertilization?. Successful completion of fertilization in mammals is dependent on three membrane fusion events: 1. the...
Induced pluripotent stem cell (iPSC)-derived cortical neurons potentially present a powerful new model to understand corticogenesis and neurological disease. Previous work has established that differentiation protocols can produce cortical neurons, but little has been done to characterize these at cellular resolution. In particular, it is unclear to what extent in vitro two-dimensional, relativ...
To explore the effect of monosialotetrahexosylganglioside sodium on cortical neurogenesis in traumatic brain injury rats. Thirty Sprague–Dawley rats were randomly divided into control group, saline group and group. The model was prepared with hydraulic controllable device received sham operation. levels oxidative stress, nerve damage, new born neurons, learning memory capabilities assessed seru...
Recordings were made from single SI cortical neurons in the anesthetized macaque monkey. Each isolated cortical neuron was tested for responses to a standard series of mechanical stimuli. The stimuli included brushing the skin, pressure, and pinch. The majority of cortical neurons responded with the greatest discharge frequency to brushing the receptive field, but neurons were found in areas 3b...
The common view that stopping action plans by the basal ganglia is achieved mainly subthalamic nucleus alone due to its direct excitatory projection onto output nuclei of has been challenged recent findings. proposed “pause-then-cancel” model suggests provides a rapid stimulus-unspecific “pause” signal, followed stop-cue-specific “cancel” signal from striatum-projecting arkypallidal neurons. To...
Amyotrophic lateral sclerosis (ALS) is a fatal disease characterized by the degeneration of cortical and spinal motor neurons. With no effective treatment available to date, patients face progressive paralysis eventually succumb due respiratory failure within only few years. Recent research has revealed multifaceted nature mechanisms cell types involved in neuron degeneration, thereby opening u...
Subcortically projecting neurons and callosally projecting ones are distinct neuronal pools in the cerebral cortex of the rodents. However, cortical efferent neurons are known to project multiple targets transiently by plural collateral axons. These plural axons are eliminated during prenatal and postnatal development. In the cerebral cortex of the Reelin-deficient mouse, reeler, which is cau...
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