J 2018

Tuning Neuromodulation Effects by Orientation Selective Deep Brain Stimulation in the Rat Medial Frontal Cortex

LEHTO, Lauri J., Pavel FILIP, Hanne LAAKSO, Alejandra SIERRA, Julia P. SLOPSEMA et. al.

Basic information

Original name

Tuning Neuromodulation Effects by Orientation Selective Deep Brain Stimulation in the Rat Medial Frontal Cortex

Authors

LEHTO, Lauri J. (840 United States of America), Pavel FILIP (703 Slovakia, belonging to the institution), Hanne LAAKSO (246 Finland), Alejandra SIERRA (246 Finland), Julia P. SLOPSEMA (840 United States of America), Matthew D. JOHNSON (840 United States of America), Lynn E. EBERLY (840 United States of America), Walter C. LOW (840 United States of America), Olli GROHN (246 Finland), Heikki TANILA (246 Finland), Silvia MANGIA (840 United States of America) and Shalom MICHAEL (840 United States of America, guarantor)

Edition

Frontiers in Neuroscience, Lausanne, Frontiers Media S.A. 2018, 1662-453X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30103 Neurosciences

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.648

RIV identification code

RIV/00216224:14110/18:00105520

Organization unit

Faculty of Medicine

UT WoS

000453332600001

Keywords in English

deep brain stimulation; infralimbic cortex; fMRI; orientation selective; depression

Tags

Tags

International impact, Reviewed
Změněno: 15/1/2019 11:46, Soňa Böhmová

Abstract

V originále

Previous studies that focused on treating major depressive disorder with conventional deep brain stimulation (DBS) paradigms produced inconsistent results. In this proof-of-concept preclinical study in rats (n = 8), we used novel paradigms of orientation selective DBS for stimulating the complex circuitry crossing the infralimbic cortex, an area considered analogous to human subgenual cingulate cortex. Using functional MRI at 9.4 T, we monitored whole brain responses to varying the electrical field orientation of DBS within the infralimbic cortex. Substantial alterations of functional MRI responses in the amygdala, a major node connected to the infralimbic cortex implicated in the pathophysiology of depression, were observed. As expected, the activation cluster near the electrode was insensitive to the changes of the stimulation orientation. Hence, our findings substantiate the ability of orientation selective stimulation (OSS) to recruit neuronal pathways of distinct orientations relative to the position of the electrode, even in complex circuits such as those involved in major depressive disorder. We conclude that OSS is a promising approach for stimulating brain areas that inherently require individualisation of the treatment approach.