Alfredo Ardila | Florida International University (original) (raw)
Papers by Alfredo Ardila
Revista latinoamericana de psicología
Revista latinoamericana de psicología
Revista de Investigacion en Logopedia
![Research paper thumbnail of [Angular gyrus connectivity model for language: a functional neuroimaging meta-analysis]](https://attachments.academia-assets.com/44510040/thumbnails/1.jpg)
](Revista de neurologia
Modern functional neuroimaging techniques permit the analysis of the simultaneous activation of d... more Modern functional neuroimaging techniques permit the analysis of the simultaneous activation of diverse brain areas to suggest cognitive connectivity models related to specific cognitive functions. To analyze the functional networks of the angular gyrus (Brodmann area 39) related to language functions. The database of BrainMap was used to analyze the activation coordinates of the angular gyrus and brain related areas while performing different language tasks. Eight articles were selected that included 13 experiments, 155 participants and 265 loci. Sixteen activation clusters made a network that included the activation of the two angular gyri, the superior right parietal lobe and right supramarginal gyri; the superior left temporal lobe (middle lateral and medial inferior), and the frontal lobe (bilateral premotor and left prefrontal). Our findings are in agreement with previous findings using structural connectivity techniques and support the integrative role of the angular gyrus in...
Frontiers in Psychology, 2015
Behavioural Neurology, 2015
Revista de neurologia
To analyze the influence of age on the performance of a planning and organization task, two skill... more To analyze the influence of age on the performance of a planning and organization task, two skills included in the executive functions. Performance of the task 'Mexican pyramid' from the Evaluacion Neuropsicologica Infantil (ENI) were analyzed on 239 school age children from México and Colombia, distributed in six age groups. Five measures were analyzed: number of correct designs, number of movements per design and execution time in the correct designs, number of correct designs built with the minimum of movements and its execution time. There was a significant effect of age on the five measures. Comparison between groups showed that younger children (5 to 6 years old) had a smaller number of correct designs, while children from 5 to 8 years old need more movements. Execution time showed a greater number of differences between groups. Analyzing the 11 items of the task, it was evident that difficulty level is related with the number of movements and the novelty of rules. Our...
![Research paper thumbnail of [HUMANS: a neuropsychological battery for evaluating HIV 1 infected patients]](https://attachments.academia-assets.com/44510031/thumbnails/1.jpg)
](Revista de neurologia
To develop a neuropsychological test battery in Spanish for the cognitive evaluation of HIV 1 inf... more To develop a neuropsychological test battery in Spanish for the cognitive evaluation of HIV 1 infected patients. Departing from the suggestions presented by the work group of the National Institute of Mental Health (USA), a neuropsychological assessment battery was developed. It was named HUMANS (HIV/University of Miami Annotated Neuropsychological test battery in Spanish). This battery includes the following domains: 1) attention and speed of processing information, 2) memory, 3) executive function, 4) language, 5) visuospacial/visuoconstructive abilities, and 6) motor abilities. Administration takes about 3 4 hours. The English parallel version of this battery has been successfully used in English for over a decade with HIV 1 infected patients. In the paper the development and adaptation to Spanish language of the HUMANS neuropsychology section is presented. HUMANS neuropsychological test battery fulfill the recommendations presented by the work group of the National Institute of ...
Revista de neurologia
Several studies have proposed a multiple dimensional theoretical model for executive function. To... more Several studies have proposed a multiple dimensional theoretical model for executive function. To identify the factor structure of the executive function in a sample of young university students of different modalities of learning in their careers. 100 participants of both sexes, age 16 to-21-year old and normal Full Scale IQ were selected in a randomized and representative approach from private universities of Medellin Colombia. They were student of verbal, visuospatial and mathematical careers. A executive function assessment battery were applied, which included: Wisconsin Card Sorting Test (WCST), Trail Making Test (TMT) A and B, verbal fluency test (FAS) by phonologic and semantic guides, and Stroop test. A structure of four factor was found, which explained 74.9% of variance. Factors were: 1. Organization and flexibility, which explained 26.6% of variance; 2. Processing speed, 19.7%; 3. Inhibitory control, 15.1%; and 4. Verbal fluency 13.4%. A multiple factor structure of the e...
International Journal of Brain Science, 2014
Neuropsychology review, 2002
Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists, 2014
Gerstmann's syndrome includes the clinical tetrad of finger agnosia, agraphia, acalculia, and... more Gerstmann's syndrome includes the clinical tetrad of finger agnosia, agraphia, acalculia, and right-left confusion. Some disagreement remains with regard to the exact localization of the syndrome, but most probable it involves the left angular gyrus with a subcortical extension. Several authors have suggested that a defect in mental spatial rotations could simultaneously account for acalculia, right-left disorientation, and finger agnosia. It has been also suggested that semantic aphasia is always associated with acalculia; as a matter of fact, left angular gyrus has a significant involvement in semantic processing. In this paper, it is proposed that Gerstmann's syndrome should include: acalculia, finger agnosia, right-left disorientation, and semantic aphasia, but not agraphia. When the pathology extends toward the superior parietal gyrus, agraphia can be found. A fundamental defect (i.e., an impairment in verbally mediated spatial operations) could explain these apparently...
Revista latinoamericana de psicología
Revista latinoamericana de psicología
Revista de Investigacion en Logopedia
Revista de neurologia
Modern functional neuroimaging techniques permit the analysis of the simultaneous activation of d... more Modern functional neuroimaging techniques permit the analysis of the simultaneous activation of diverse brain areas to suggest cognitive connectivity models related to specific cognitive functions. To analyze the functional networks of the angular gyrus (Brodmann area 39) related to language functions. The database of BrainMap was used to analyze the activation coordinates of the angular gyrus and brain related areas while performing different language tasks. Eight articles were selected that included 13 experiments, 155 participants and 265 loci. Sixteen activation clusters made a network that included the activation of the two angular gyri, the superior right parietal lobe and right supramarginal gyri; the superior left temporal lobe (middle lateral and medial inferior), and the frontal lobe (bilateral premotor and left prefrontal). Our findings are in agreement with previous findings using structural connectivity techniques and support the integrative role of the angular gyrus in...
Frontiers in Psychology, 2015
Behavioural Neurology, 2015
Revista de neurologia
To analyze the influence of age on the performance of a planning and organization task, two skill... more To analyze the influence of age on the performance of a planning and organization task, two skills included in the executive functions. Performance of the task 'Mexican pyramid' from the Evaluacion Neuropsicologica Infantil (ENI) were analyzed on 239 school age children from México and Colombia, distributed in six age groups. Five measures were analyzed: number of correct designs, number of movements per design and execution time in the correct designs, number of correct designs built with the minimum of movements and its execution time. There was a significant effect of age on the five measures. Comparison between groups showed that younger children (5 to 6 years old) had a smaller number of correct designs, while children from 5 to 8 years old need more movements. Execution time showed a greater number of differences between groups. Analyzing the 11 items of the task, it was evident that difficulty level is related with the number of movements and the novelty of rules. Our...
Revista de neurologia
To develop a neuropsychological test battery in Spanish for the cognitive evaluation of HIV 1 inf... more To develop a neuropsychological test battery in Spanish for the cognitive evaluation of HIV 1 infected patients. Departing from the suggestions presented by the work group of the National Institute of Mental Health (USA), a neuropsychological assessment battery was developed. It was named HUMANS (HIV/University of Miami Annotated Neuropsychological test battery in Spanish). This battery includes the following domains: 1) attention and speed of processing information, 2) memory, 3) executive function, 4) language, 5) visuospacial/visuoconstructive abilities, and 6) motor abilities. Administration takes about 3 4 hours. The English parallel version of this battery has been successfully used in English for over a decade with HIV 1 infected patients. In the paper the development and adaptation to Spanish language of the HUMANS neuropsychology section is presented. HUMANS neuropsychological test battery fulfill the recommendations presented by the work group of the National Institute of ...
Revista de neurologia
Several studies have proposed a multiple dimensional theoretical model for executive function. To... more Several studies have proposed a multiple dimensional theoretical model for executive function. To identify the factor structure of the executive function in a sample of young university students of different modalities of learning in their careers. 100 participants of both sexes, age 16 to-21-year old and normal Full Scale IQ were selected in a randomized and representative approach from private universities of Medellin Colombia. They were student of verbal, visuospatial and mathematical careers. A executive function assessment battery were applied, which included: Wisconsin Card Sorting Test (WCST), Trail Making Test (TMT) A and B, verbal fluency test (FAS) by phonologic and semantic guides, and Stroop test. A structure of four factor was found, which explained 74.9% of variance. Factors were: 1. Organization and flexibility, which explained 26.6% of variance; 2. Processing speed, 19.7%; 3. Inhibitory control, 15.1%; and 4. Verbal fluency 13.4%. A multiple factor structure of the e...
International Journal of Brain Science, 2014
Neuropsychology review, 2002
Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists, 2014
Gerstmann's syndrome includes the clinical tetrad of finger agnosia, agraphia, acalculia, and... more Gerstmann's syndrome includes the clinical tetrad of finger agnosia, agraphia, acalculia, and right-left confusion. Some disagreement remains with regard to the exact localization of the syndrome, but most probable it involves the left angular gyrus with a subcortical extension. Several authors have suggested that a defect in mental spatial rotations could simultaneously account for acalculia, right-left disorientation, and finger agnosia. It has been also suggested that semantic aphasia is always associated with acalculia; as a matter of fact, left angular gyrus has a significant involvement in semantic processing. In this paper, it is proposed that Gerstmann's syndrome should include: acalculia, finger agnosia, right-left disorientation, and semantic aphasia, but not agraphia. When the pathology extends toward the superior parietal gyrus, agraphia can be found. A fundamental defect (i.e., an impairment in verbally mediated spatial operations) could explain these apparently...