Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Phase Diagrams02:39

Phase Diagrams

50.5K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
50.5K
Phase Transitions02:31

Phase Transitions

23.3K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
23.3K
Inductance: Single-Phase And Three-Phase Line01:28

Inductance: Single-Phase And Three-Phase Line

643
Understanding the inductance of transmission lines is crucial for efficient design and operation in electrical power systems. This discussion delves into the inductance characteristics of single-phase two-wire and three-phase three-wire transmission lines with equal phase spacing.
Single-Phase Two-Wire Line:
A single-phase line consists of two solid cylindrical conductors, denoted as x and y. Each conductor carries phasor currents ix and iy, respectively. Given that the sum of these currents is...
643
Capacitance: Single-Phase And Three-Phase Line01:25

Capacitance: Single-Phase And Three-Phase Line

619
In electrical power systems, understanding the capacitance of transmission lines is fundamental for efficient operation.
Single-Phase Lines
Consider a single-phase, two-wire transmission line with equal phase spacing energized by a voltage source. One conductor carries a uniform positive charge, while the other carries an equal negative charge. The capacitance C of the line can be derived from the voltage V between the conductors. For a one-meter section of the line, the capacitance is given...
619
Phase Changes01:19

Phase Changes

5.4K
Phase transitions play an important theoretical and practical role in the study of heat flow. In melting or fusion, a solid turns into a liquid; the opposite process is freezing. In evaporation, a liquid turns into a gas; the opposite process is condensation.
A substance melts or freezes at a temperature called its melting point and boils or condenses at its boiling point. These temperatures depend on pressure. High pressure favors the denser form of the substance, so typically, high pressure...
5.4K
Phase-lead and Phase-lag Controllers01:22

Phase-lead and Phase-lag Controllers

583
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
583

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Disrupted erythrocyte S1P-eNOS axis promotes hypoxia, hypertension and fibrosis in obstructive sleep apnoea-hypopnoea syndrome.

European heart journal·2026
Same author

METTL3 mediates Ang-II-induced cardiac hypertrophy by regulating KLF5 expression in an m<sup>6</sup>A-dependent manner.

Biochimica et biophysica acta. Gene regulatory mechanisms·2026
Same author

Potential profiles and associated factors of medication safety competence at home: a study in the older adults following percutaneous coronary intervention.

Frontiers in public health·2026
Same author

[Effect on electroencephalogram microstate in patients with post-stroke cognitive impairment: a comparative study of acupuncture with different stimulation methods at cognitive-emotional area].

Zhongguo zhen jiu = Chinese acupuncture & moxibustion·2026
Same author

Differences between human and rat 5α-Reductase 1 inhibition by phenolic disinfectants: Comparative kinetics and binding modes for neurosteroid synthesis.

Chemico-biological interactions·2026
Same author

Strongly anisotropic electronic and phononic transport but nearly direction-independent thermoelectric figure of merit in monolayer InAsSe.

Physical chemistry chemical physics : PCCP·2026
Same journal

Contemporary pharmacological strategies for acute peripheral facial palsy: a narrative review with clinical decision considerations.

Frontiers in neuroscience·2026
Same journal

Physical bacteria-neuron proximity and early cellular responses: a conceptual perspective.

Frontiers in neuroscience·2026
Same journal

Dynamic changes of gut microbiota during progression of three Alzheimer's disease mice models.

Frontiers in neuroscience·2026
Same journal

Evaluation of an open-face 8-channel transmit 64-channel receive 7T head coil for neuroimaging.

Frontiers in neuroscience·2026
Same journal

Acoustic stimulation in pain management: neurobiological mechanisms and clinical applications-a narrative review.

Frontiers in neuroscience·2026
Same journal

Local brain connectome parameters across the spectrum of clinical cognitive decline.

Frontiers in neuroscience·2026
See all related articles

Related Experiment Video

Updated: Feb 14, 2026

Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding
11:25

Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding

Published on: July 26, 2013

44.1K

Decoding English Alphabet Letters Using EEG Phase Information.

YiYan Wang1,2, Pingxiao Wang2, Yuguo Yu1

  • 1State Key Laboratory of Medical Neurobiology, School of Life Science and the Collaborative Innovation Center for Brain Science, Center for Computational Systems Biology, Institutes of Brain Science, Fudan University, Shanghai, China.

Frontiers in Neuroscience
|February 23, 2018
PubMed
Summary
This summary is machine-generated.

Brain electroencephalograms (EEG) can decode letters using phase patterns. Theta and alpha oscillations show higher accuracy, with optimal decoding occurring 180-380 ms post-stimulus, aiding brain-computer interface development.

Keywords:
brain-computer interfacehuman brainsupport vector machine (SVM)theta-band oscillationvisual cortex

More Related Videos

Training Synesthetic Letter-color Associations by Reading in Color
10:27

Training Synesthetic Letter-color Associations by Reading in Color

Published on: February 20, 2014

23.4K
Decoding Natural Behavior from Neuroethological Embedding
08:00

Decoding Natural Behavior from Neuroethological Embedding

Published on: October 3, 2025

730

Related Experiment Videos

Last Updated: Feb 14, 2026

Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding
11:25

Simultaneous Scalp Electroencephalography EEG, Electromyography EMG, and Whole-body Segmental Inertial Recording for Multi-modal Neural Decoding

Published on: July 26, 2013

44.1K
Training Synesthetic Letter-color Associations by Reading in Color
10:27

Training Synesthetic Letter-color Associations by Reading in Color

Published on: February 20, 2014

23.4K
Decoding Natural Behavior from Neuroethological Embedding
08:00

Decoding Natural Behavior from Neuroethological Embedding

Published on: October 3, 2025

730

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Biomedical Engineering

Background:

  • Brain electroencephalograms (EEG) reveal information in low-frequency oscillations during sensory cognition.
  • Understanding EEG phase and power patterns is crucial for decoding cognitive processes.

Purpose of the Study:

  • To investigate the direct decoding of English alphabet letters from EEG phase and power data.
  • To determine the contribution of different oscillation bands to classification and identify critical time periods for decoding.
  • To explore the potential of EEG signals for brain-computer interface (BCI) applications.

Main Methods:

  • An English letter recognition task was designed with visual stimuli.
  • Support vector machine (SVM) with gradient descent was employed for feature classification.
  • Statistical analyses were performed on EEG phase and power data.

Main Results:

  • EEG phase signals demonstrated higher decoding accuracy compared to oscillation power.
  • Low-frequency theta and alpha oscillations showed superior phase information accuracy.
  • Optimal decoding performance was observed between 180-380 ms post-stimulus, particularly in lateral occipital and posterior temporal regions (PO7, PO8).

Conclusions:

  • Direct letter decoding from EEG is feasible, with phase information being more informative than power.
  • Theta and alpha band oscillations are key contributors to accurate letter decoding.
  • These findings offer a novel approach for BCI development and enhance understanding of EEG in cognition.