Ingvars Birznieks
Overview
Explore the profile of Ingvars Birznieks including associated specialties, affiliations and a list of published articles.
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45
Citations
529
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Recent Articles
1.
Willemet L, Roel F, Abbink D, Birznieks I, Wiertlewski M
J Physiol
. 2024 Dec;
603(2):411-422.
PMID: 39673300
A task as simple as holding a cup between your fingers generates complex motor commands to finely regulate the forces applied by muscles. These fine force adjustments ensure the stability...
2.
Nagi S, McIntyre S, Ng K, Mahns D, Birznieks I, Vickery R
Sci Rep
. 2024 Nov;
14(1):27943.
PMID: 39543354
Among the various classes of fast-adapting (FA) tactile afferents found in hairy and glabrous skin, FA2 afferents, associated with Pacinian corpuscles (PC), preferentially signal high-frequency sinusoidal events corresponding with vibration...
3.
Ng K, So A, Fang J, Birznieks I, Vickery R
Front Neurosci
. 2024 Jun;
18:1125597.
PMID: 38894940
In neural prostheses, intensity modulation of a single channel (i.e., through a single stimulating electrode) has been achieved by increasing the magnitude or width of each stimulation pulse, which risks...
4.
Afzal N, du Bois de Dunilac S, Loutit A, Shea H, Ulloa P, Khamis H, et al.
J Physiol
. 2024 Mar;
602(9):2089-2106.
PMID: 38544437
When manipulating objects, humans begin adjusting their grip force to friction within 100 ms of contact. During motor adaptation, subjects become aware of the slipperiness of touched surfaces. Previously, we...
5.
Loutit A, Wheat H, Khamis H, Vickery R, Macefield V, Birznieks I
J Neurosci
. 2023 May;
43(22):4033-4046.
PMID: 37142429
Dexterous object manipulation depends critically on information about forces normal and tangential to the fingerpads, and also on torque associated with object orientation at grip surfaces. We investigated how torque...
6.
Sharma D, Ng K, Birznieks I, Vickery R
Front Neurosci
. 2022 Sep;
16:1006185.
PMID: 36161171
Both hearing and touch are sensitive to the frequency of mechanical oscillations-sound waves and tactile vibrations, respectively. The mounting evidence of parallels in temporal frequency processing between the two sensory...
7.
Sharma D, Ng K, Birznieks I, Vickery R
J Neurophysiol
. 2022 Sep;
128(4):1074-1084.
PMID: 36102518
The perceived intensity of a vibrotactile stimulus is thought to depend on single-neuron firing rates (rate coding) and the number of active afferents (population coding). Unaddressed until now is whether...
8.
Sharma D, Ng K, Birznieks I, Vickery R
Sci Rep
. 2022 Jun;
12(1):11014.
PMID: 35773321
When tactile afferents were manipulated to fire in periodic bursts of spikes, we discovered that the perceived pitch corresponded to the inter-burst interval (burst gap) in a spike train, rather...
9.
Ng K, Tee X, Vickery R, Birznieks I
IEEE Trans Haptics
. 2022 Jan;
15(1):14-19.
PMID: 34990370
It has been suggested that tactile intensity perception can be explained by a linear function of spike rate weighted by afferent type. Other than relying on mathematical models, verifying this...
10.
Afzal N, Stubbs E, Khamis H, Loutit A, Redmond S, Vickery R, et al.
IEEE Trans Haptics
. 2022 Jan;
15(1):20-25.
PMID: 34982692
Human tactile perception and motor control rely on the frictional estimates that stem from the deformation of the skin and slip events. However, it is not clear how exactly these...