Preface

The study of the human brain and its functioning is an interesting and fascinating subject. Electroencephalography (EEG) and brain connectome analysis are evolving fields for understanding brain electrophysiology and its complex and interconnecting cerebral network.

EEG has been used for decades, from basic investigations in epilepsy patients to advanced studies of the propagation of pathological seizure in refractory epilepsy. The advances in the study of the brain connectome by anatomical and neuroradiological aspects supplement the mechanisms underlying cognition, behavior, and disease.

*Advances in Electroencephalography and Brain Connectome* presents a comprehensive overview of the basic principles and concepts as well as the latest developments in this field. The chapters cover a wide range of topics including laboratory practical use of EEG, EEG with correlation of neuroimaging, medical application of EEG, and connectome concepts in surgical intervention including newly evolving stereotactic electroencephalography. In addition, the book discusses the popular implementation of EEG in brain–computer interfaces for neurorehabilitation.

The book serves as a platform for sharing ideas among researchers and clinicians who are interested in the study and advancement of anatomo-clinical electrophysiology networking of the human brain and its relevant functions.

> **Tak Lap Poon** Department of Neurosurgery, Queen Elizabeth Hospital, Hong Kong SAR, China

**Chapter 1**

**Abstract**

*Sergey Alexander Gulyaev*

and functional EEG studies.

**1. Introduction**

subject.

**1**

neurophysiology, clinical practice

Practical Recommendations for

Conducting an EEG Study in a

Neurophysiological Laboratory

The method of electroencephalography is an accurate and objective method of recording the bioelectrical activity of the brain, used both in scientific research and in clinical practice. However, achieving a high-quality result requires a lot of preparatory work. This chapter describes the technology for conducting electroencephalographic studies, their subsequent analysis, and presentation of results that are understandable to both a specialist neurophysiologist and a practicing neurologist. You will also find a description of the organization of the EEG study, the choice of scenario, functional tests, and the basics of forming a medical report. We will also consider individual issues of organizing an EEG study in people who have had a stroke, and multichannel

**Keywords:** electroencephalography, brainmapping, organization, clinical

Electroencephalography is an accessible method for objective diagnosis of the functional activity of the brain, widely used in modern neurology. The main reason for the modern use of electroencephalography in clinical diagnostics is the fact that there is no time delay between the level of nutrient supply to the nerve cell and changes in the total postsynaptic potential recorded using the electroencephalographic system, which is due to the absence of organelles in nerve cells that ensure the deposition of nutrients. This makes it possible to use the EEG for diagnosing brain processes with fast dynamics that are inaccessible to other technologies, in particular, fMRI. In practice, this makes it possible to observe the features of changes in cerebral hemoperfusion in the cortical regions of the cerebral hemispheres in real time. And taking into account the peculiarities of the EEG—technology to implement an economically accessible system of functional observation / control without significant risks of adverse effects on the

However, the most significant issues limiting the use of EEG at present are the

training of specialists who use in their daily work either primitive diagnostic
