Cerebral networks involved in internal scaling of spatial dimensions.

Completed

Conditions: Gezonde populatie
Healthy population

Registration Number: NL-OMON38588

Lead Sponsor: niversitair Medisch Centrum Groningen

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Completed

Sex: Not specified

Target Recruitment: 16

Inclusion Criteria

Healthy right-handed persons aged 18-65 years.

Exclusion Criteria

Subjects who suffer from specific neurological or psychiatric disorders or injury to the upper extremities will be excluded. Subjects who cannot go in the MRI scanner are also excluded. With neurological disorders we mean disorders for which the consult of a medical specialist was necessary: epilepsia, severe brain injury and temporary paralysis. Exclusion criteria for the MRI are for example the presence of ferromagnetic material in or on the body, pregnancy or claustrophobia. (specifief in the questionnaire) Furthermore, subjects who are right-handed, but draw with their left hand are excluded. Also, subjects with an uncorrectable abnormality in visual acuity will be excluded.

Study & Design

Study Type: Observational invasive

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Localisation of condition-related increase in cerebral activation in the medial<br /><br>and lateral premotor cortex. A voxel-based analysis of task-related cerebral<br /><br>activation (increased BOLD responses) will be performed using 'Statistical<br /><br>Parametric Mapping' (SPM8). In this way differences in medial and lateral<br /><br>premotor cortex activation between the different experimental conditions will<br /><br>be quantified. The number of 16 subjects is enough for a random effects<br /><br>analysis of the fMRI data.</p><br>

Secondary Outcome Measures