Ramon C Leiguarda
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Explore the profile of Ramon C Leiguarda including associated specialties, affiliations and a list of published articles.
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Articles
17
Citations
395
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Recent Articles
1.
Maki-Marttunen V, Villarreal M, Leiguarda R
Behav Brain Res
. 2014 Jul;
272:226-37.
PMID: 25008350
Praxis functions are predominantly processed by the left hemisphere. However, limb apraxia is found in less than 50% of patients with left hemisphere damage, and also, although infrequently, in patients...
2.
Villarreal M, Cerquetti D, Caruso S, Schwarcz Lopez Aranguren V, Gerschcovich E, Frega A, et al.
PLoS One
. 2013 Sep;
8(9):e75427.
PMID: 24069414
Previous studies of musical creativity suggest that this process involves multi-regional intra and interhemispheric interactions, particularly in the prefrontal cortex. However, the activity of the prefrontal cortex and that of...
3.
Villarreal M, Fridman E, Leiguarda R
PLoS One
. 2012 Feb;
7(2):e29644.
PMID: 22363406
Background: To investigate, by means of fMRI, the influence of the visual environment in the process of symbolic gesture recognition. Emblems are semiotic gestures that use movements or hand postures...
4.
Jauregui O, Costanzo E, De Achaval D, Villarreal M, Chu E, Mora M, et al.
Cogn Behav Neurol
. 2011 Nov;
24(4):194-203.
PMID: 22123585
Objective: The objective of the study was to determine whether patients with schizophrenia and their unaffected first-degree relatives have abnormal autonomic nervous system (ANS) responses to social cognition tasks. Background:...
5.
Guinjoan S, Mayberg H, Costanzo E, Fahrer R, Tenca E, Antico J, et al.
J Neuropsychiatry Clin Neurosci
. 2010 Aug;
22(3):265-77.
PMID: 20686133
Major depressive disorder is one of the most common psychiatric disorders, with a worldwide lifetime prevalence rate of 10%-20% in women and a slightly lower rate in men. While many...
6.
Fridman E, Krimchansky B, Bonetto M, Galperin T, Gamzu E, Leiguarda R, et al.
Brain Inj
. 2010 Mar;
24(4):636-41.
PMID: 20235766
Background: The prognosis of long-term severe disorders of consciousness due to traumatic brain injury is discouraging. There is little definitive evidence of the underlying mechanisms, but a deficiency of the...
7.
De Achaval D, Costanzo E, Villarreal M, Jauregui I, Chiodi A, Castro M, et al.
Neuropsychologia
. 2009 Dec;
48(5):1209-15.
PMID: 20026084
Previous studies have suggested that social cognition is affected in individuals with schizophrenia. The purpose of this study was to explore to what extent social cognition deficits are shared by...
8.
Fridman E, Calvar J, Bonetto M, Gamzu E, Krimchansky B, Meli F, et al.
Brain Inj
. 2009 Feb;
23(2):172-7.
PMID: 19191097
Background: Traumatic brain injury (TBI) can induce long-term severe disorders of consciousness. Evidence suggests an underlying dopaminergic deficit. Dopamine agonists may therefore play an important role in recovery of consciousness....
9.
Castro M, Vigo D, Chu E, Fahrer R, De Achaval D, Costanzo E, et al.
Schizophr Res
. 2009 Jan;
109(1-3):134-40.
PMID: 19179048
Background: Schizophrenia patients exhibit an abnormal autonomic response to mental stress. We sought to determine the cardiac autonomic response to mental arithmetic stress in their unaffected first-degree relatives. Methods: Heart...
10.
Villarreal M, Fridman E, Amengual A, Falasco G, Gerschcovich E, Gerscovich E, et al.
Neuropsychologia
. 2008 Apr;
46(9):2371-82.
PMID: 18433807
Previous studies have linked action recognition with a particular pool of neurons located in the ventral premotor cortex, the posterior parietal cortex and the superior temporal sulcus (the mirror neuron...