All Other Senses
... Melzak and Wall (1965, 1983) proposed that our spinal cord contains neurological “gates” that either block pain or allow it to be sensed. ...
... Melzak and Wall (1965, 1983) proposed that our spinal cord contains neurological “gates” that either block pain or allow it to be sensed. ...
Novel optogenetic Therapy May Restore Vision After Retinal
... Vision After Retinal Degeneration Researchers have developed an approach to restore vision using a component of green algae. By Callan Navitsky, Associate Editor ...
... Vision After Retinal Degeneration Researchers have developed an approach to restore vision using a component of green algae. By Callan Navitsky, Associate Editor ...
Update on Electroconvulsive Therapy and Other Brain Treatments
... treatment, during which the doctor delivered a short stimulation to establish the patient’s particular seizure threshold. Afterwards, stimulation is given at six times the threshold level. After stimulation, the resulting seizure lasts between 10 and 60 seconds. Once the seizure has passed, the musc ...
... treatment, during which the doctor delivered a short stimulation to establish the patient’s particular seizure threshold. Afterwards, stimulation is given at six times the threshold level. After stimulation, the resulting seizure lasts between 10 and 60 seconds. Once the seizure has passed, the musc ...
Hyperhidrosis Due to Thalamic Deep Brain Stimulation in a Patient
... of VIM (ventrointermedius) deep brain stimulation. BACKGROUND: Essential tremor (ET) is a the most common form of tremor encountered in movement disorder clinics. ET is characterized by postural and action tremor of the upper extremities, but head, voice, and lower extremity tremors may also be pres ...
... of VIM (ventrointermedius) deep brain stimulation. BACKGROUND: Essential tremor (ET) is a the most common form of tremor encountered in movement disorder clinics. ET is characterized by postural and action tremor of the upper extremities, but head, voice, and lower extremity tremors may also be pres ...
how spinal cord stimulation can help alleviate chronic pain
... not foresee an end to their pain, but over the last 50 years, advances in spinal cord stimulation therapy have enabled people with chronic pain to return to everyday activities. Neel Mehta, M.D., director of the Weill Cornell Pain Medicine Center in New York City, is an advocate for spinal cord stim ...
... not foresee an end to their pain, but over the last 50 years, advances in spinal cord stimulation therapy have enabled people with chronic pain to return to everyday activities. Neel Mehta, M.D., director of the Weill Cornell Pain Medicine Center in New York City, is an advocate for spinal cord stim ...
CLOsed-loop Neural prostheses for vestibular disorderS
... Intra-vestibular stimulation/recording interfaces, like multi-site stimulation electrodes, able to create connections with neurons innervating the vestibular periphery ...
... Intra-vestibular stimulation/recording interfaces, like multi-site stimulation electrodes, able to create connections with neurons innervating the vestibular periphery ...
1 - Sur Lab
... stimulator (right). (E) Example pulse delivered to two pins from the stimulator via multielectrode array. Scale bars: 5 ms and 1 V. (F) Cortical slice integrated with the multielectrode array of different spacings, such as 200 μm (left) and 10 μm (right). Scale bars: 200 μm (left), 50 μm (right). (G ...
... stimulator (right). (E) Example pulse delivered to two pins from the stimulator via multielectrode array. Scale bars: 5 ms and 1 V. (F) Cortical slice integrated with the multielectrode array of different spacings, such as 200 μm (left) and 10 μm (right). Scale bars: 200 μm (left), 50 μm (right). (G ...
Principles of Electrical Currents
... Electrodes spaced far apart will penetrate more deeply with less current density Generally the larger the electrode the less density. If a large “dispersive” pad is creating muscle contractions there may be areas of high current concentration and other areas relatively inactive, thus functionally ...
... Electrodes spaced far apart will penetrate more deeply with less current density Generally the larger the electrode the less density. If a large “dispersive” pad is creating muscle contractions there may be areas of high current concentration and other areas relatively inactive, thus functionally ...
Ne_plas_cause
... Signs and symptoms of disorders • Not everything can be seen on MRI or other imaging techniques • Not everything has positive laboratory tests ...
... Signs and symptoms of disorders • Not everything can be seen on MRI or other imaging techniques • Not everything has positive laboratory tests ...
July 18, 2009 CHANGING THE PICTURE IN DEPRESSION: TRANS
... In the past two decades, we have seen amazing pictures tying various clinical syndromes to certain operational patterns in the brain’s networks. Alas, we had no tools to improve these pictures directly by making a particular circuitry more or less active without tampering with other subsystems of th ...
... In the past two decades, we have seen amazing pictures tying various clinical syndromes to certain operational patterns in the brain’s networks. Alas, we had no tools to improve these pictures directly by making a particular circuitry more or less active without tampering with other subsystems of th ...
What is RF diathermy?
... The main piece of equipment is a high-frequency generator, which provides an electrical current through a cable to a transducer which contains a piezoelectric crystal. This crystal when exposed to the current will vibrate at a given frequency, expanding and contracting, which produces the necessary ...
... The main piece of equipment is a high-frequency generator, which provides an electrical current through a cable to a transducer which contains a piezoelectric crystal. This crystal when exposed to the current will vibrate at a given frequency, expanding and contracting, which produces the necessary ...
Understanding the brain by controlling neural activity
... regions were stimulated in humans by Delgado [9], feelings of euphoria could be generated, reported to be so strong as to be able to supplant feelings of depression or pain. To investigate how brain activity generates perception and cognition, direct interventions are required in subjects who can re ...
... regions were stimulated in humans by Delgado [9], feelings of euphoria could be generated, reported to be so strong as to be able to supplant feelings of depression or pain. To investigate how brain activity generates perception and cognition, direct interventions are required in subjects who can re ...
Spatial Spread Measurements in HR 90K users
... • Ideally, in multi-channel cochlear implants (CI), each electrode should selectively activate a distinct group of neurons in the cochlea. • In reality, the same neurons are stimulated by multiple electrodes because the injected current spreads through the cochlear tissue. If two or more electrodes ...
... • Ideally, in multi-channel cochlear implants (CI), each electrode should selectively activate a distinct group of neurons in the cochlea. • In reality, the same neurons are stimulated by multiple electrodes because the injected current spreads through the cochlear tissue. If two or more electrodes ...
Spherical harmonics decomposition and Sphericity
... The baseline for excitation is determined on a standardly grown two dimensional culture. The axons of neurons grown in such non-patterned 2D cultures do not usually follow a particular direction. This implies that both axons and dendrites will have random orientations and that stimulation of such a ...
... The baseline for excitation is determined on a standardly grown two dimensional culture. The axons of neurons grown in such non-patterned 2D cultures do not usually follow a particular direction. This implies that both axons and dendrites will have random orientations and that stimulation of such a ...
Principles of Electrical Currents - Lectures
... Electrodes spaced far apart will penetrate more deeply with less current density Generally the larger the electrode the less density. If a large “dispersive” pad is creating muscle contractions there may be areas of high current concentration and other areas relatively inactive, thus functionally ...
... Electrodes spaced far apart will penetrate more deeply with less current density Generally the larger the electrode the less density. If a large “dispersive” pad is creating muscle contractions there may be areas of high current concentration and other areas relatively inactive, thus functionally ...
Reaching for the brain: stimulating neural activity as the big leap in
... established new synapses. Overall, these data provide the first indication of an experimental treatment that can overcome (some aspects of) optic nerve injury-induced blindness by reactivating the intrinsic growth potential of retinal ganglion cells. Notably, whereas the first part of the study stan ...
... established new synapses. Overall, these data provide the first indication of an experimental treatment that can overcome (some aspects of) optic nerve injury-induced blindness by reactivating the intrinsic growth potential of retinal ganglion cells. Notably, whereas the first part of the study stan ...
TENS Lecture
... – Stimulates C fibers for level II pain control (PAG etc.) – Similar to high frequency TENS – Highest rate (100 Hz), 200 mSec pulse width intensity to a very strong but tolerable level – Treatment time is only 15 minutes, if no relief then treat again after 2-3 minutes – Mono or biphasic current giv ...
... – Stimulates C fibers for level II pain control (PAG etc.) – Similar to high frequency TENS – Highest rate (100 Hz), 200 mSec pulse width intensity to a very strong but tolerable level – Treatment time is only 15 minutes, if no relief then treat again after 2-3 minutes – Mono or biphasic current giv ...
BIOSTIMULATION is a form of Electrotherapy that
... The concept of electrotherapy is nothing new: the use of electricity for treating pain and disease has been experimented with and refined for over a century. Electrical devices have for long been used in both the medical and alternative fields for pain relief and healing. Different forms of elect ...
... The concept of electrotherapy is nothing new: the use of electricity for treating pain and disease has been experimented with and refined for over a century. Electrical devices have for long been used in both the medical and alternative fields for pain relief and healing. Different forms of elect ...
A1982ND73700001
... Academy of Sciences, Bratislava, Czechoslovakia] The visual evoked potential is a very small bioelectric potential complex which can be registered, by means of sophisticated methods, on the human scalp as a response of the brain to a light flash. It represents an objective, biophysical correlate of ...
... Academy of Sciences, Bratislava, Czechoslovakia] The visual evoked potential is a very small bioelectric potential complex which can be registered, by means of sophisticated methods, on the human scalp as a response of the brain to a light flash. It represents an objective, biophysical correlate of ...
29-Audition-Percepti..
... speech for his honors thesis. • Tested: discrimination of questions vs. statements • And identification of most prominent word in a ...
... speech for his honors thesis. • Tested: discrimination of questions vs. statements • And identification of most prominent word in a ...
high. 1, treated virgin
... are all-or-none, and the motor effect develops at the same threshold as that for the conducted impulse in the central axon. In contrast to the effect of the flexion command unit in Fig. 2, the discharge of all excitatory axons is suppressed, and a previously silent efferent neuron (identified as the ...
... are all-or-none, and the motor effect develops at the same threshold as that for the conducted impulse in the central axon. In contrast to the effect of the flexion command unit in Fig. 2, the discharge of all excitatory axons is suppressed, and a previously silent efferent neuron (identified as the ...
Direct and Indirect Activation of Cortical Neurons by Electrical
... al. 1986). These estimates are based on the activation of subcortical fibers. Two groups have studied the currentspread properties of electrical stimulation within neocortex using behavioral methods. Murasugi et al. (1993) studied such properties in extrastriate area MT (middle temporal cortex) and ...
... al. 1986). These estimates are based on the activation of subcortical fibers. Two groups have studied the currentspread properties of electrical stimulation within neocortex using behavioral methods. Murasugi et al. (1993) studied such properties in extrastriate area MT (middle temporal cortex) and ...
HALLUCINATIONS NATURAL VS. DRUG
... • integrity of the visual cortico-claustral loop may be necessary for precise temporal integration of edge information from end-inhibited and line-detector cell populations, and that the nature of this temporal coding may be modulated based on the expected motion of objects, eye movements, and selec ...
... • integrity of the visual cortico-claustral loop may be necessary for precise temporal integration of edge information from end-inhibited and line-detector cell populations, and that the nature of this temporal coding may be modulated based on the expected motion of objects, eye movements, and selec ...