tDCS Montage Placement: Improving Insight
Anode: Right Temporal (T4)
Cathode: Left Temporal (T3)
Studies Show: Insight Improvement
Other Uses: Savant Learning, Problem Solving, General Cognitive Enhancement
Notes: It is believed that improvement in insight is obtained through decreasing cortical excitability in the left hemisphere, and increasing cortical excitability in the right hemisphere.
Anode: Right Mastoid (P10) Cathode: Right DLPFC (F4)
Study Results: Increased Present Awareness
Other Uses: Increased Impulsiveness
Notes: External modulation of both the left and right DLPFC has been shown to influence driving behavior with Anodal stimulation of the DLPFC resulting in a more careful driving style.
Anode: Ipsilesional [C3) Cathode: Contralesional (C4)
(graphic coming shortly)
Study Results: Improved Motor Recovery in Stroke
Other Uses: Improved Motor Skills, Enhance Motor learning
Notes: The improvement of motor function was significantly greater in the real stimulation group, when compared to the sham group.
tDCS Montage Placement: Improved Mathematical Abilities
Anode: Right Parietal (P4)
Cathode: Left Parietal (P3)
Anode: Right DLPFC (F4) Cathode: Left DLPFC (F3)
Study Results: Reduced cigarette cravings and other addicting behaviors
Other Uses: Reduced alcohol and Junk food cravings. Studies focusing on this montage have shown the potential for decreased risk-taking in humans.
Cumulative priming effects of cortical stimulation on smoking cue-induced craving
A randomized controlled trial of targeted prefrontal cortex modulation with tDCS in patients with alcohol dependence
Study Results: Reduced Risk Taking
Other uses: Reduced overeating, alcohol & drug addiction, gambling addiction
Notes: Activation of prefrontal cortex by transcranial direct current stimulation reduces appetite for risk during ambiguous decision making.
Study Results: Depression Treatment
Other Uses: Improved Mood
Notes: While the majority of depression related tDCS studies utilize the more popular F3 – FP2 electrode placement, this alternative placement has shown antidepressant potential in certain patients suffering from depression and other related mood disorders.
Study: D. Martin, C. Loo (2014)
Anode: Right Temple [F10) Cathode: Left Shoulder
Study Results: Accelerated Learning (DARPA Montage)
Other Uses: New Skill Acquisition, Increased Focus, Accelerated Learning
Notes: The US Military has showed that tDCS can increase focus and learning speeds by up to 2x the average. Academic settings have replicated these studies with the same results, doubling learning speeds in students. The vast evidence supports the notion that tDCS can accelerate learning and enhance performance in a range of complex cognitive tasks.
Study Results: Improved Mood, Reduced Depression
Other Uses: Reduced Anxiety
Notes: This electrode placement is the most widely studied tDCS montage shown to produce mood improvement, most notably in those individuals suffering with depression. Furthermore, this montage has been shown to alleviate symptoms in certain cases of severe treatment-resistant depression, Seasonal affective disorder (SAD), and General Anxiety Disorder (GAD).
Transcranial direct current stimulation: a promising alternative for the treatment of major depression? (Marcelo T. Berlim; Vitor Dias Neto; Gustavo Turecki)
Go-no-go task performance improvement after anodal transcranial DC stimulation of the left dorsolateral prefrontal cortex in major depression (Paulo S. Boggio, Felix Bermpohl, Adriana O. Vergara, Ana L.C.R. Muniz, Fernanda H. Nahas, Priscila B. Leme, Sergio P. Rigonatti, Felipe Fregnic)