Cognitive Change
Conditions
Keywords
approach motivation, avoidance motivation, transcranial direct current stimulation
Brief summary
The purpose of this study is to determine whether anodal transcranial direct current stimulation (tDCS) applied to the left dorsolateral prefrontal cortex induces approach motivation, and whether anodal tDCS applied to the right dorsolateral prefrontal cortex induces avoidance motivation. This study consists of three experiments: one in which an approach/avoidance video game is validated, one in which the effect of anger and fear on approach/avoidance is studied, and one in which the effect of tDCS is studied. Only the experiment in which the effect of tDCS is studied involves tDCS.
Interventions
DEVICEAnodal left dorsolateral prefrontal cortex tDCS stimulation
Anodal tDCS will be applied to the left dorsolateral prefrontal cortex of participants
DEVICEAnodal right dorsolateral prefrontal cortex tDCS stimulation
Anodal tDCS will be applied to the right dorsolateral prefrontal cortex of participants
DEVICESham tDCS stimulation
Sham tDCS stimulation will be applied
Sponsors
Tufts University
Study design
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Normal hearing and vision
Exclusion criteria
* Left-handedness * History of seizure, head injury (including neurosurgery), brain injury, diagnosis or a neurological or psychiatric disorder, metal in the head, sensitive scalp * History of anxiolytic and/or antidepressant medications * Participation in Experiment #1 or Experiment #2 of the larger study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Avoidance-Approach time difference | 1 year | Median of the difference between time to approach and time to avoid a stimulus |
Countries
United States
Outcome results
None listed