Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Static Magnetic Field Stimulation over the Visual Cortex Increases Alpha Oscillations and Slows Visual Search in Humans.
Year:2015
Research Areas
  • Natural sciences and health sciences
Information
Abstract
Transcranial static magnetic field stimulation (tSMS) was recently introduced as a promising tool to modulate human cerebral excitability in a noninvasive and portable way. However, a demonstration that static magnetic fields can influence human brain activity and behavior is currently lacking, despite evidence that static magnetic fields interfere with neuronal function in animals. Here we show that transcranial application of a static magnetic field (120-200 mT at 2-3 cm from the magnet surface) over the human occiput produces a focal increase in the power of alpha oscillations in underlying cortex. Critically, this neurophysiological effect of tSMS is paralleled by slowed performance in a visual search task, selectively for the most difficult target detection trials. The typical relationship between prestimulus alpha power over posterior cortical areas and reaction time (RT) to targets during tSMS is altered such that tSMS-dependent increases in alpha power are associated with longer RTs for difficult, but not easy, target detection trials. Our results directly demonstrate that a powerful magnet placed on the scalp modulates normal brain activity and induces behavioral changes in humans.
International
Si
JCR
No
Title
The Journal of Neuroscience
ISBN
0270-6474
Impact factor JCR
6,344
Impact info
Volume
35
10.1523/JNEUROSCI.4232-14.2015.
Journal number
24
From page
9182
To page
9193
Month
JUNIO
Ranking
Participants
  • Autor: Bryan Strange (UPM)
  • Autor: Javier Jesus Gonzalez Rosa (UPM)
  • Autor: V Soto-Leon
  • Autor: P Real
  • Autor: C Carrasco-Lopez
  • Autor: G Foffani
  • Autor: A Oliviero
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tecnologías para Ciencias de la Salud
  • Departamento: Tecnología Fotónica y Bioingeniería
  • Centro o Instituto I+D+i: Centro de tecnología Biomédica CTB
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)