| Title |
Predictive smooth eye pursuit in a population of young men: II. Effects of schizotypy, anxiety and depression
|
|---|---|
| Published in |
Experimental Brain Research, October 2011
|
| DOI | 10.1007/s00221-011-2888-4 |
| Pubmed ID | |
| Authors |
Emmanouil Kattoulas, Ioannis Evdokimidis, Nicholas C. Stefanis, Dimitrios Avramopoulos, Costas N. Stefanis, Nikolaos Smyrnis |
| Abstract |
Smooth pursuit eye movement dysfunction is considered to be a valid schizophrenia endophenotype. Recent studies have tried to refine the phenotype in order to identify the specific neurophysiological deficits associated with schizophrenia. We used a variation of the smooth eye pursuit paradigm, during which the moving target is occluded for a short period of time and subjects are asked to continue tracking. This is designed to isolate the predictive processes that drive the extraretinal signal, a process previously reported to be defective in schizophrenia patients as well as their healthy relatives. In the current study, we investigated the relationship between predictive pursuit performance indices and age, education, non-verbal IQ, schizotypy and state anxiety, depression in 795 young Greek military conscripts. State anxiety was related to better predictive pursuit performance (increase in residual pursuit gain), while disorganized schizotypy was related to deficient predictive pursuit performance (decreased residual gain). This effect was independent of the effect of disorganized schizotypy on other oculomotor functions supporting the hypothesis that predictive pursuit might be specifically affected in schizophrenia spectrum disorders and could be considered as a distinct oculomotor endophenotype. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 65 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 1 | 2% |
| United States | 1 | 2% |
| Belgium | 1 | 2% |
| Australia | 1 | 2% |
| Unknown | 61 | 94% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 13 | 20% |
| Researcher | 12 | 18% |
| Student > Master | 6 | 9% |
| Student > Doctoral Student | 6 | 9% |
| Student > Bachelor | 5 | 8% |
| Other | 10 | 15% |
| Unknown | 13 | 20% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 17 | 26% |
| Medicine and Dentistry | 15 | 23% |
| Agricultural and Biological Sciences | 6 | 9% |
| Neuroscience | 6 | 9% |
| Computer Science | 2 | 3% |
| Other | 5 | 8% |
| Unknown | 14 | 22% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 August 2012.
All research outputs
#14,719,073
of 22,653,392 outputs
Outputs from Experimental Brain Research
#1,927
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Outputs of similar age
#91,931
of 135,951 outputs
Outputs of similar age from Experimental Brain Research
#17
of 30 outputs
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