John I Simpson
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Explore the profile of John I Simpson including associated specialties, affiliations and a list of published articles.
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10
Citations
169
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Recent Articles
1.
Hensbroek R, Ruigrok T, van Beugen B, Maruta J, Simpson J
Cerebellum
. 2015 Aug;
14(5):578-83.
PMID: 26280650
The unipolar brush cell (UBC) is a glutamatergic granular layer interneuron that is predominantly located in the vestibulocerebellum and parts of the vermis. In rat and rabbit, we previously found...
2.
Hensbroek R, Belton T, van Beugen B, Maruta J, Ruigrok T, Simpson J
J Neurosci Methods
. 2014 Jun;
232:173-80.
PMID: 24880047
Background: We have extended our cerebellar cortical interneuron classification algorithm that uses statistics of spontaneous activity (Ruigrok et al., 2011) to include Purkinje cells. Purkinje cells were added because they...
3.
Winkelman B, Belton T, Suh M, Coesmans M, Morpurgo M, Simpson J
J Neurosci
. 2014 Feb;
34(9):3218-30.
PMID: 24573280
In addition to the well-known signals of retinal image slip, floccular complex spikes (CSs) also convey nonvisual signals. We recorded eye movement and CS activity from Purkinje cells in awake...
4.
Simpson J
Cerebellum
. 2011 Aug;
10(3):515-22.
PMID: 21822546
The contention of this commentary, focused on the vestibulocerebellum (particularly the flocculus), is that the great importance for our understanding of cerebellar organization in terms of climbing fiber zones, begun...
5.
Ruigrok T, Hensbroek R, Simpson J
J Neurosci
. 2011 Jan;
31(2):712-24.
PMID: 21228180
Cerebellar cortical interneurons such as Golgi cells, basket cells, stellate cells, unipolar brush cells, and granule cells play an essential role in the operations of the cerebellum. However, detailed functional...
6.
Maruta J, Hensbroek R, Simpson J
J Neurosci
. 2007 Oct;
27(42):11263-70.
PMID: 17942720
Although cerebellar Purkinje cell complex spikes occur at low frequency (approximately 1/s), each complex spike is often associated with a high-frequency burst (approximately 500/s) of climbing fiber spikes. We examined...
7.
Maruta J, Raphan T, Simpson J, Cohen B
Exp Brain Res
. 2007 Oct;
185(1):87-99.
PMID: 17926026
Whether ocular orientation to gravity is produced solely by linear acceleration in the horizontal plane of the head or depends on both horizontal and vertical components of the acceleration of...
8.
Urbano F, Simpson J, Llinas R
Proc Natl Acad Sci U S A
. 2006 Oct;
103(44):16550-5.
PMID: 17050678
The electrophysiological properties of rat inferior olive (IO) neurons in the dorsal cap of Kooy (DCK) and the adjacent ventrolateral outgrowth (VLO) were compared with those of IO neurons in...
9.
Maruta J, MacDougall H, Simpson J, Raphan T, Cohen B
Vision Res
. 2005 Dec;
46(6-7):961-9.
PMID: 16337668
We studied ocular asymmetries and orienting responses induced by angular rotation in rabbits with binocular video recordings. Slow phase velocities were significantly larger in the eye moving temporonasally than nasotemporally....
10.
Maruta J, Simpson J, Raphan T, Cohen B
Exp Brain Res
. 2005 Feb;
163(3):273-83.
PMID: 15702320
Sinusoidal translation while rotating at constant angular velocity about a vertical axis (translation while rotating, TWR) produces centripetal and translational accelerations along the direction of translation and an orthogonal Coriolis...