keyword
MENU ▼
Read by QxMD icon Read
search

Sensory stimulation

keyword
https://www.readbyqxmd.com/read/29773983/somatosensory-cross-modal-reorganization-in-adults-with-age-related-early-stage-hearing-loss
#1
Garrett Cardon, Anu Sharma
Under conditions of profound sensory deprivation, the brain has the propensity to reorganize. For example, intact sensory modalities often recruit deficient modalities' cortices for neural processing. This process is known as cross-modal reorganization and has been shown in congenitally and profoundly deaf patients. However, much less is known about cross-modal cortical reorganization in persons with less severe cases of age-related hearing loss (ARHL), even though such cases are far more common. Thus, we investigated cross-modal reorganization between the auditory and somatosensory modalities in older adults with normal hearing (NH) and mild-moderate ARHL in response to vibrotactile stimulation using high density electroencephalography (EEG)...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29773757/neural-signatures-of-the-processing-of-temporal-patterns-in-sound
#2
Björn Herrmann, Ingrid S Johnsrude
The ability to detect regularities in sound (i.e., recurring structure) is critical for effective perception, enabling, for example, change detection and prediction. Two seemingly unconnected lines of research concern the neural operations involved in processing regularities: one investigates how neural activity synchronizes with temporal regularities (e.g., frequency modulation; FM) in sounds, whereas the other focuses on increases in sustained activity during stimulation with repeating tone-frequency patterns...
May 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29773686/drivers-of-the-dive-response-in-pinnipeds-apnea-submergence-or-temperature
#3
Jeppe Kaczmarek, Colleen Reichmuth, Birgitte I McDonald, Jakob H Kristensen, Josefin Larson, Fredrik Johansson, Jenna L Sullivan, Peter T Madsen
Long and deep dives in marine mammals are enabled by high mass-specific oxygen stores and the dive response (DR), which reduces oxygen consumption in concert with increased peripheral vasoconstriction and a lowered heart rate during dives. Diving heart rates of pinnipeds are highly variable and modulated by many factors, such as breath holding (apnea), pressure, swimming activity, temperature, and even cognitive control. However, the individual effects of these factors on diving heart rate are poorly understood due to the difficulty of parsing their relative contributions in diving pinnipeds...
May 17, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29773517/astrocytic-ca-2-responses-in-the-spinal-dorsal-horn-by-noxious-stimuli-to-the-skin
#4
Kohei Yoshihara, Tsuyoshi Matsuda, Yuta Kohro, Hidetoshi Tozaki-Saitoh, Kazuhide Inoue, Makoto Tsuda
The role of astrocytes in the spinal dorsal horn (SDH) for sensory information processing under normal conditions is poorly understood. In this study, we investigated whether SDH astrocytes respond to noxious and innocuous stimuli to the skin of normal mice using in vivo two-photon Ca2+ imaging under anesthesia. We found that noxious stimulation evoked by intraplantar formalin injection provoked an elevation in intracellular Ca2+ levels in SDH astrocytes. By contrast, neither instantaneous noxious pinching nor innocuous stimuli (cooling or brushing) to the hindpaw elicited astrocytic Ca2+ responses...
May 3, 2018: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29772954/electric-acoustic-stimulation-suppresses-tinnitus-in-a-subject-with-high-frequency-single-sided-deafness
#5
Griet Mertens, Vincent Van Rompaey, Paul Van de Heyning
BACKGROUND: A suggested solution to suppress tinnitus is to restore the normal sensory input. This is based on the auditory deprivation hypothesis. It is known that hearing aids can provide sufficient activation of the auditory nervous system and reduce tinnitus in subjects with mild to moderate hearing loss and that cochlear implantation can reduce tinnitus in subjects with severe to profound hearing loss. This applies to subjects with single-sided deafness (SSD) or bilateral hearing loss...
May 17, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29770439/increase-of-frontal-neuronal-activity-in-chronic-neglect-after-training-in-virtual-reality
#6
U Ekman, H Fordell, J Eriksson, N Lenfeldt, A Wåhlin, A Eklund, J Malm
OBJECTIVES: A third of patients with stroke acquire spatial neglect associated with poor rehabilitation outcome. New effective rehabilitation interventions are needed. Scanning training combined with multisensory stimulation to enhance the rehabilitation effect is suggested. In accordance, we have designed a virtual-reality based scanning training that combines visual, audio and sensori-motor stimulation called RehAtt® . Effects were shown in behavioural tests and activity of daily living...
May 16, 2018: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29769622/a-simple-power-law-governs-many-sensory-amplifications-and-multisensory-enhancements
#7
Vincent A Billock, Paul R Havig
When one sensory response occurs in the presence of a different sensory stimulation, the sensory response is often amplified. The variety of sensory enhancement data tends to obscure the underlying rules, but it has long been clear that weak signals are usually amplified more than strong ones (the Principle of Inverse Effectiveness). Here we show that for many kinds of sensory amplification, the underlying law is simple and elegant: the amplified response is a power law of the unamplified response, with a compressive exponent that amplifies weak signals more than strong...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29767351/evaluating-the-methods-used-for-measuring-cerebral-blood-flow-at-rest-and-during-exercise-in-humans
#8
REVIEW
Michael M Tymko, Philip N Ainslie, Kurt J Smith
The first accounts of measuring cerebral blood flow (CBF) in humans were made by Angelo Mosso in ~1880, who recorded brain pulsations in patients with skull defects. In 1890, Charles Roy and Charles Sherrington determined in animals that brain pulsations-assessed via a similar method used by Mosso-were altered during a variety of stimuli including sensory nerve stimulation, asphyxia, and pharmacological interventions. Between 1880 and 1944, measurements for CBF were typically relied on skull abnormalities in humans...
May 16, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29766591/bilateral-activations-in-operculo-insular-area-show-temporal-dissociation-after-peripheral-electrical-stimulation-in-healthy-adults
#9
Pekka Hautasaari, Harri Saloranta, Andrej M Savić, Katariina Korniloff, Urho M Kujala, Ina M Tarkka
Interhemispheric transfer is necessary for sensory integration and coordination of body sides. We studied how somatosensory input from one body side may reach both body sides. First, we investigated with 17 healthy adults which uni- and bilateral brain areas were involved in consecutive stages of automatic sensory processing of non-nociceptive peripheral stimulation. Somatosensory evoked fields (SEFs) to electrical stimulation were recorded with 306-channel magnetoencephalography in two conditions. First, SEFs were registered following sensory radial nerve (RN) stimulation to dorsal surface of the right hand and second, following median nerve (MN) stimulation at the right wrist...
May 15, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29766393/linear-feature-projection-based-real-time-decoding-of-limb-state-from-dorsal-root-ganglion-recordings
#10
Sungmin Han, Jun-Uk Chu, Jong Woong Park, Inchan Youn
Proprioceptive afferent activities recorded by a multichannel microelectrode have been used to decode limb movements to provide sensory feedback signals for closed-loop control in a functional electrical stimulation (FES) system. However, analyzing the high dimensionality of neural activity is one of the major challenges in real-time applications. This paper proposes a linear feature projection method for the real-time decoding of ankle and knee joint angles. Single-unit activity was extracted as a feature vector from proprioceptive afferent signals that were recorded from the L7 dorsal root ganglion during passive movements of ankle and knee joints...
May 15, 2018: Journal of Computational Neuroscience
https://www.readbyqxmd.com/read/29765886/reference-value-for-infrapatellar-branch-of-saphenous-nerve-conduction-study-cadaveric-and-clinical-study
#11
Keon-Tae Kim, Yong-Ki Kim, Jung Ro Yoon, Yundam Ko, Myung Eun Chung
Objective: To determine the optimal stimulation and recording site for infrapatellar branch of saphenous nerve (IPBSN) conduction studies by a cadaveric study, and to confirm that obtained location is practically applicable to healthy adults. Methods: Twelve lower limbs from six cadavers were studied. We defined the optimal stimulation site as the point IPBSN exits the sartorius muscle and the distance or ratio were measured on the X- and Y-axis based on the line connecting the medial and lateral poles of the patella...
April 2018: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29765790/direct-posterior-bipolar-cervical-facet-radiofrequency-rhizotomy-a-simpler-and-safer-approach-to-denervate-the-facet-capsule
#12
Ovidiu Palea, Haroon M Andar, Ramon Lugo, Michelle Granville, Robert E Jacobson
Radiofrequency cervical rhizotomy has been shown to be effective for the relief of chronic neck pain, whether it be due to soft tissue injury, cervical spondylosis, or post-cervical spine surgery. The target and technique have traditionally been taught using an oblique approach to the anterior lateral capsule of the cervical facet joint. The goal is to position the electrode at the proximal location of the recurrent branch after it leaves the exiting nerve root and loops back to the cervical facet joint. The standard oblique approach to the recurrent nerve requires the testing of both motor and sensory components to verify the correct position and ensure safety so as to not damage the slightly more anterior nerve root...
March 14, 2018: Curēus
https://www.readbyqxmd.com/read/29765188/influence-of-peripheral-magnetic-stimulation-of-soleus-muscle-on-h-and-m-waves
#13
Tadamitsu Matsuda, Taichi Kurayama, Miki Tagami, Yuji Fujino, Atsushi Manji, Yasuaki Kusumoto, Kazu Amimoto
[Purpose] This study evaluated the effects of repetitive peripheral magnetic stimulation of the soleus muscle on spinal cord and peripheral motor nerve excitability. [Subjects and Methods] Twelve healthy adults (mean age 22 years) who provided written informed consent were administered repetitive peripheral magnetic stimulation for 10 min. Pre-and post-stimulation latencies and amplitudes of H- and M-waves of the soleus muscle were measured using electromyography and compared using paired t-tests. [Results] Pre- and post-stimulation latencies (28...
May 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29762867/shaping-memory-consolidation-via-targeted-memory-reactivation-during-sleep
#14
REVIEW
Nicola Cellini, Alessandra Capuozzo
Recent studies have shown that the reactivation of specific memories during sleep can be modulated using external stimulation. Specifically, it has been reported that matching a sensory stimulus (e.g., odor or sound cue) with target information (e.g., pairs of words, pictures, and motor sequences) during wakefulness, and then presenting the cue alone during sleep, facilitates memory of the target information. Thus, presenting learned cues while asleep may reactivate related declarative, procedural, and emotional material, and facilitate the neurophysiological processes underpinning memory consolidation in humans...
May 15, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29761601/postnatal-development-of-cholinergic-input-to-the-thalamic-reticular-nucleus-of-the-mouse
#15
Guela Sokhadze, Peter Whitney Campbell, William Guido
The thalamic reticular nucleus (TRN), a shell-like structure comprised of GABAergic neurons, gates signal transmission between thalamus and cortex. While TRN is innervated by axon collaterals of thalamocortical and corticothalamic neurons, other ascending projections modulate activity during different behavioral states such as attention, arousal, and sleep-wake cycles. One of the largest arise from cholinergic neurons of the basal forebrain and brainstem. Despite its integral role, little is known about how or when cholinergic innervation and synapse formation occurs...
May 14, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29761580/cross-modal-restoration-of-ocular-dominance-plasticity-in-adult-mice
#16
Manuel Teichert, Marcel Isstas, Yitong Zhang, Jürgen Bolz
The temporal closure of one eye in juvenile and young adult mice induces a shift of the ocular dominance (OD) of neurons in the binocular visual cortex. However, OD-plasticity typically declines with age and is completely absent in matured mice beyond postnatal day (PD) 110. As it has been shown that the deprivation of one sensory input can induce neuronal alterations in non-deprived sensory cortices, we here investigated whether cross-modal interactions have the potential to reinstall OD-plasticity in matured mice...
May 14, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29760647/discrimination-and-recognition-of-phantom-finger-sensation-through-transcutaneous-electrical-nerve-stimulation
#17
Mengnan Li, Dingguo Zhang, Yao Chen, Xinyu Chai, Longwen He, Ying Chen, Jinyao Guo, Xiaohong Sui
Tactile sensory feedback would make a significant contribution to the state-of-the-art prosthetic hands for achieving dexterous manipulation over objects. Phantom finger sensation, also called referred sensation of lost fingers, can be noninvasively evoked by transcutaneous electrical nerve stimulation (TENS) of the phantom finger territories (PFTs) near the stump for upper-limb amputees. As such, intuitive sensations pertaining to lost fingers could be non-invasively generated. However, the encoding of stimulation parameters into tactile sensations that can be intuitively interpreted by the users remains a significant challenge...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760484/top-down-descending-facilitation-of-spinal-sensory-excitatory-transmission-from-the-anterior-cingulate-cortex
#18
Tao Chen, Wataru Taniguchi, Qi-Yu Chen, Hidetoshi Tozaki-Saitoh, Qian Song, Ren-Hao Liu, Kohei Koga, Tsuyoshi Matsuda, Yae Kaito-Sugimura, Jian Wang, Zhi-Hua Li, Ya-Cheng Lu, Kazuhide Inoue, Makoto Tsuda, Yun-Qing Li, Terumasa Nakatsuka, Min Zhuo
Spinal sensory transmission is under descending biphasic modulation, and descending facilitation is believed to contribute to chronic pain. Descending modulation from the brainstem rostral ventromedial medulla (RVM) has been the most studied, whereas little is known about direct corticospinal modulation. Here, we found that stimulation in the anterior cingulate cortex (ACC) potentiated spinal excitatory synaptic transmission and this modulation is independent of the RVM. Peripheral nerve injury enhanced the spinal synaptic transmission and occluded the ACC-spinal cord facilitation...
May 14, 2018: Nature Communications
https://www.readbyqxmd.com/read/29760390/olfactory-bulb-acetylcholine-release-dishabituates-odor-responses-and-reinstates-odor-investigation
#19
M Cameron Ogg, Jordan M Ross, Mounir Bendahmane, Max L Fletcher
Habituation and dishabituation modulate the neural resources and behavioral significance allocated to incoming stimuli across the sensory systems. We characterize these processes in the mouse olfactory bulb (OB) and uncover a role for OB acetylcholine (ACh) in physiological and behavioral olfactory dishabituation. We use calcium imaging in both awake and anesthetized mice to determine the time course and magnitude of OB glomerular habituation during a prolonged odor presentation. In addition, we develop a novel behavioral investigation paradigm to determine how prolonged odor input affects odor salience...
May 14, 2018: Nature Communications
https://www.readbyqxmd.com/read/29759144/tropisetron-attenuates-lipopolysaccharide-induced-neuroinflammation-by-inhibiting-nf-%C3%AE%C2%BAb-and-sp-nk1r-signaling-pathway
#20
Yan Yu, Wanhu Zhu, Qing Liang, Jing Liu, Xu Yang, Guangchun Sun
Tropisetron, an antagonist of serotonin type 3 receptors (5-HT3 Rs), has been investigated in colonic inflammatory process. Since substance P/neurokinin 1 receptor (SP/NK1R) signaling pathway plays a key role in several sensory neuronal inflammatory. We evaluated the anti-inflammatory activity of tropisetron in mice cerebral cortex, and discovered that it was a potential inhibitor in LPS-mediated neuron inflammation through SP/NK1R signaling pathway. We found that tropisetron significantly reduced the increased number of iba-1 positive microglia, down-regulated the gene transcription and protein expression of IL-1β,IL-6 and TNF-α in LPS stimulated cerebral cortex...
July 15, 2018: Journal of Neuroimmunology
keyword
keyword
27372
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"