healthy control
Conditions
Interventions
Group 1: Intervention: In two different sessions, subjects receive either anodal DLPFC stimulation while solving magnitude comparison tasks or anodal IPS stimulation while solving magnitude comparison
Sponsors
Medizinische Psychologie und Medizinische Soziologie
Eligibility
Sex/Gender
All
Age
10 Years to 35 Years
Inclusion criteria
Inclusion criteria: Age 10-35 years old, healthy females and males
Exclusion criteria
Exclusion criteria: - Internal, neurological and other psychiatric diseases - IQ< 80 - a birth weight of < 2500 gr. or a birth before the 37th week of pregnancy - medication intake - brain operations - social disorder - spasms (epilepsy) (in your child or in the child's family), seizures (also single seizures), fever cramps, increased excitability of the brain (anamnestic: epilepsy typical potentials or other pathological EEG changes), migraine - substance abuse - Metal implants or electronic devices (metal inserted in the head area): e.g. implantation of an artificial cochlea. - Pregnancy (will be examined on the 1st appointment) - Condition after craniocerebral trauma with loss of consciousness - Any pre-existing condition of the heart, pacemaker. - Diseases of the scalp - Tuberous sclerosis - neurofibromatosis - cerebral palsy - intracranial pressure - Neurological or psychiatric medication for chronic disease
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary endpoint of this study is to measure the possible modulation by stimulation in the magnitude processing of proportions. During two different sessions, subjects receive anodal stimulation of the DLPFC or anodal stimulation of the IPS. While the subjects are stimulated, they solve magnitude comparison tasks on the computer. A possible effect of stimulation on magnitude processing can be measured by the distance effect in these size comparison tasks. A further session serves as a control in which the test subjects receive sham stimulation and also solve magnitude comparison tasks with proportions. | — |
Secondary
| Measure | Time frame |
|---|---|
| In order to measure the influence of the individual cognitive performance of the participants on the magnitude processing of proportions, an intelligence test, a math test and a test for the conceptual knowledge of fractions are performed at the first appointment. | — |
Countries
Germany
Contacts
Public ContactVera Moliadze
Medizinische Psychologie und Medizinische Soziologie
Outcome results
None listed