Related Experiment Video
Updated: Jan 21, 2026
11:09
Deep Brain Stimulation with Simultaneous fMRI in Rodents
Published on: February 15, 2014
14.6K
Theoretical principles of deep brain stimulation induced synaptic suppression
AmirAli Farokhniaee1, Cameron C McIntyre1
1Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
Brain Stimulation
|July 29, 2019
Summary
High-frequency deep brain stimulation (DBS) causes synaptic suppression, explaining observed neural firing patterns. This finding helps refine DBS models for neurological disorders.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Biophysics
Background:
- Deep brain stimulation (DBS) is a key therapy for neurological disorders, but its precise physiological mechanisms are not fully understood.
- Existing hypotheses for DBS mechanisms are numerous, but high-frequency stimulation-induced synaptic suppression aligns well with experimental neural activity recordings.
Purpose of the Study:
- To model excitatory post-synaptic currents and action potential signaling in neurons receiving DBS input.
- To characterize synaptic dynamics under DBS using a computational model.
Main Methods:
- Employed the Tsodyks-Markram (TM) synapse model to simulate synaptic depression, facilitation, and pseudo-linearity under DBS.
- Utilized a leaky integrate-and-fire neuron model driven by simulated synaptic inputs to analyze post-synaptic spiking activity.
Main Results:
- Synaptic suppression was consistently observed at high DBS frequencies, irrespective of synapse type.
- The TM model facilitated the development of optimized DBS pulsing strategies to maximize synaptic suppression efficiently.
Conclusions:
- Synaptic suppression offers a biophysical explanation for the intermittent, time-locked neuronal firing seen in DBS.
- Network models simulating DBS effects should incorporate synaptic suppression for accurate predictions of neural activity.
Related Concept Videos
01:12Synaptic Signaling
79.2K
Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
79.2K
04:08The Uncertainty Principle
31.4K
Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
31.4K
01:49Hardy-Weinberg Principle
76.0K
Diploid organisms have two alleles of each gene, one from each parent, in their somatic cells. Therefore, each individual contributes two alleles to the gene pool of the population. The gene pool of a population is the sum of every allele of all genes within that population and has some degree of variation. Genetic variation is typically expressed as a relative frequency, which is the percentage of the total population that has a given allele, genotype or phenotype.
76.0K
03:06The Pauli Exclusion Principle
59.0K
The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
59.0K
01:29Theoretical Approaches to Psychological Disorder
805
The development of psychological disorders, which are characterized by deviant, maladaptive, and personally distressing behaviors, has been explored through several theoretical approaches.
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...
805
01:30Theoretical Foundations of Nursing Practice
17.2K
Theories play an essential role in organizing patient care. Theories refer to a proposed or followed belief, policy, or procedure that is the basis for action. Nursing theories are knowledge-based concepts that guide nurses' actions, influence nursing education and practice, and allow nurses to care for their patients.
Theories provide a perspective to assess patients' conditions and organize data and methods. They also assist in analyzing and interpreting information. They represent a...
Theories provide a perspective to assess patients' conditions and organize data and methods. They also assist in analyzing and interpreting information. They represent a...
17.2K