Three repeated sessions of transcranial random noise stimulation (tRNS) leads to long-term effects on reaction time in the Go/No Go task - 30/01/19
, Marine Mondino a, b, d, Emmanuel Poulet a, b, c, d, Jérome Brunelin a, b, dBienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
| pages | 6 |
| Iconographies | 1 |
| Vidéos | 0 |
| Autres | 0 |
Summary |
Objective |
We aimed to investigate whether the number of sessions delivered within one day influences the acute and long-term effects of transcranial random noise stimulation (tRNS) applied over the dorsolateral prefrontal cortex (DLPFC) on inhibitory control.
Methods |
Thirty-six healthy participants were randomly assigned to receive either (i) 3 active (3A), (ii) 1 active and 2 sham (1A2S) or (iii) 3 sham (3S) tRNS sessions. The 3 tRNS were delivered consecutively in the same half-day separated by 30min with the anode over the right and the cathode over the left DLPFC. The effects of tRNS on inhibitory control were assessed 5 times using a Go/No Go task: at baseline (T0), after one tRNS session (T1), after the 3 sessions (T3), 1 (D1) and 8 (D8) days after.
Results |
As compared to sham, active tRNS did not acutely modulate accuracy in the Go/No Go task but decreased reaction times at Go trials. At D1, participants who received at least one active tRNS sessions (3A and 1A2S groups) were faster than those who received 3 sessions of sham. At D8, only the participants who received 3 active tRNS sessions were faster to successfully respond to Go trials as compared to sham.
Discussion |
Three active tRNS sessions induced longer effects on reaction times than a single session of active tRNS, compared to sham. These findings suggested that delivering repeated tRNS sessions on the same day induces more sustained effects than delivering a single session.
Le texte complet de cet article est disponible en PDF.Keywords : Dorsolateral prefrontal cortex, Go/No Go task, Impulsive behavior, Inhibitory control, Noninvasive brain stimulation, Transcranial random noise stimulation
Plan
Vol 49 - N° 1
P. 27-32 - février 2019 Retour au numéro
Article précédent
- Safety and effects on motor cortex excitability of five anodal transcranial direct current stimulation sessions in 24 hours
- Filippo Zappasodi, Gabriella Musumeci, Riccardo Navarra, Vincenzo Di Lazzaro, Massimo Caulo, Antonino Uncini
- Changes in recruitment of motor cortex excitation and inhibition in patients with drug-induced tardive syndromes
- Eman M. Khedr, Bastawy Al Fawal, Ahmed M. Abdelwarith, Mostafa Saber, Abeer Abdel Hady Tony, Ahmed El-Bassiony, John C. Rothwell
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’achat d’article à l’unité est indisponible à l’heure actuelle.
Déjà abonné à cette revue ?