• Theta waves generate the theta rhythm, a neural oscillation in the brain that underlies various aspects of cognition and behavior, including learning,...
    40 KB (5,280 words) - 16:01, 25 May 2025
  • Thumbnail for Hippocampus
    theta wave are generated mainly by densely packed neural layers of the entorhinal cortex, CA3, and the dendrites of pyramidal cells. The theta wave is...
    139 KB (16,119 words) - 00:45, 28 May 2025
  • electroencephalography (EEG) during which 4–7 Hz (theta wave) activity replaces the waking 8–13 Hz (alpha wave) background rhythm. Some experts define microsleep...
    31 KB (3,616 words) - 03:10, 16 December 2024
  • Thumbnail for Phase precession
    progressively earlier relative to the theta wave, until they again became synchronous with the wave, aligned now with one wave peak earlier than before. O'Keefe...
    13 KB (1,330 words) - 01:20, 5 April 2024
  • Thumbnail for Neural oscillation
    phase of a slow wave is coupled with the amplitude of a fast wave. The theta-gamma code is a coupling between theta wave and gamma wave in the hippocampal...
    90 KB (10,615 words) - 17:48, 23 May 2025
  • Thumbnail for Sound
    Sound (redirect from Sound wave)
    stimulations over short cyclic time periods, most likely over the duration of theta wave cycles. This means that at short durations, a very short sound can sound...
    37 KB (4,178 words) - 04:29, 20 May 2025
  • biomarkers PGO waves – Waves propagating between brain regions Delta wave – (0.5 – 3 Hz) Theta wave – (4 – 7 Hz) Alpha wave – (8 – 12 Hz) Mu wave – (7.5 – 12...
    30 KB (3,535 words) - 09:13, 24 May 2025
  • Thumbnail for Median raphe nucleus
    inhibitory effect on the mechanism for hippocampal theta wave generation. Also, median raphe nucleus suppresses theta bursts of the medial septal area neurons....
    13 KB (1,613 words) - 16:55, 3 December 2024
  • In physics, a wave vector (or wavevector) is a vector used in describing a wave, with a typical unit being cycle per metre. It has a magnitude and direction...
    13 KB (2,118 words) - 15:12, 8 March 2025
  • deletions/duplications. Delta wave – (0.1 – 3 Hz) Theta wave – (4 – 7 Hz) Alpha wave – (7 – 12 Hz) Beta wave – (12 – 30 Hz) Gamma wave – (30 – 100 Hz) Rassi, Elie; Lin...
    11 KB (1,246 words) - 04:57, 17 September 2024
  • Thumbnail for Sharp waves and ripples
    Sleep spindle Delta wave – (0.1–4 Hz) Alpha wave – (8–12 Hz) Theta wave – (4–8 Hz) Mu wave – (8–13 Hz) Beta wave – (13–30 Hz) Gamma wave – (25–100 Hz) High-frequency...
    19 KB (2,208 words) - 10:08, 9 January 2025
  • brain wave pattern to the theta pattern, allowing them to explore how "emotional energy" affects their health, and develop "natural intuition". ThetaHealing...
    9 KB (851 words) - 01:49, 14 April 2025
  • Thumbnail for Fresnel equations
    Fresnel equations (category Polarization (waves))
    = θ i {\displaystyle \theta _{\mathrm {r} }=\theta _{\mathrm {i} }} , and a wave transmitted at angle θ t {\displaystyle \theta _{\mathrm {t} }} . In...
    68 KB (8,252 words) - 04:50, 10 March 2025
  • Thumbnail for Papez circuit
    based on theta wave experimentation, some components of the Papez circuit have shown to indeed have a connection and work together. Also, theta waves are thought...
    17 KB (2,174 words) - 14:22, 11 February 2025
  • Delta wave – (0.1 – 3 Hz) Theta wave – (4 – 7 Hz) Mu wave – (7.5 – 12.5 Hz) SMR wave – (12.5 – 15.5 Hz) Alpha wave – (7 (or 8) – 12 Hz) Beta wave – (12...
    30 KB (3,501 words) - 11:45, 18 February 2025
  • Thumbnail for Sleep paralysis
    sleep Slow-wave Brain waves Alpha wave Beta wave Delta wave Gamma wave K-complex Mu rhythm PGO waves Sensorimotor rhythm Sleep spindle Theta wave Sleep disorders...
    48 KB (5,531 words) - 11:08, 15 May 2025
  • Thumbnail for Large irregular activity
    frequency but contains some sharp spikes, called sharp waves of a higher frequency than that of theta. LIA accompanies the small irregular activity state...
    4 KB (542 words) - 21:08, 26 April 2024
  • Thumbnail for Delta wave
    heart Delta wave – (0.1 – 4 Hz) Theta wave – (4 – 7 Hz) Alpha wave – (8 – 12 Hz) Mu wave – (7.5 – 12.5 Hz) SMR wave – (12.5 – 15.5 Hz) Beta wave – (16 – 31 Hz)...
    23 KB (3,076 words) - 19:13, 8 April 2025
  • quantum physics Theta representation, a particular representation of the Heisenberg group of quantum mechanics Theta wave, in biology Theta*, a pathfinding...
    2 KB (279 words) - 14:35, 22 May 2024
  • Thumbnail for Medial septal nucleus
    role in the generation of theta waves in the hippocampus. Specifically, the GABAergic cells of the medial septum that act as theta pacemakers target dentate...
    2 KB (224 words) - 02:20, 17 December 2020
  • Thumbnail for Dipole antenna
    _{0}^{2\pi }{\frac {\ 1-\cos \theta \ }{\theta }}\ \mathrm {d} \theta \ \approx \ 73.1\ {\mathsf {\Omega }}~.} If a half-wave dipole is driven at a point...
    89 KB (12,468 words) - 04:48, 25 May 2025
  • Thumbnail for Rapid eye movement sleep
    more readily) than in the NREM deep sleeping brain.: §8.1 232–243  Human theta wave activity predominates during REM sleep in both the hippocampus and the...
    70 KB (8,508 words) - 00:53, 6 May 2025
  • state is sometimes referred to as relaxed wakefulness. Alpha waves disappear and the theta wave appears. People aroused from this stage often believe that...
    38 KB (4,724 words) - 22:32, 22 May 2025
  • Thumbnail for Breakfast
    were observed to have higher activity of upper and lower theta wave, alpha wave, and delta wave, which indicated a causative relationship of breakfast consumption...
    41 KB (4,022 words) - 17:08, 9 May 2025
  • Thumbnail for Diffraction
    dependency on θ {\displaystyle \theta } , hence the wavefront emerging from the slit would resemble a cylindrical wave with azimuthal symmetry; If d ≫...
    52 KB (6,613 words) - 17:51, 22 May 2025
  • Thumbnail for Wind wave
    described by the sea wave spectrum or just wave spectrum S ( ω , Θ ) {\displaystyle S(\omega ,\Theta )} . It is composed of a wave height spectrum (WHS)...
    49 KB (6,281 words) - 14:15, 6 May 2025
  • hippocampal theta waves. These waves are responsible for the synchronization of different brain regions, especially the limbic system. In rats, theta waves range...
    17 KB (2,243 words) - 22:18, 5 March 2025
  • Thumbnail for Brain activity and meditation
    theta activity. Alpha blocking is a phenomenon where the active brain, normally presenting beta wave activity, cannot as easily switch to alpha wave activity...
    20 KB (2,416 words) - 14:41, 29 April 2025
  • Thumbnail for Total internal reflection
    Total internal reflection (category Waves)
    2 / n 1 ) {\displaystyle \theta _{\text{c}}=\arcsin(n_{2}/n_{1})} and is defined if n2 ≤ n1. For some other types of waves, it is more convenient to think...
    107 KB (13,479 words) - 08:56, 23 May 2025
  • k_{x}=k_{t}\sin \theta _{t}} and k y = k t cos ⁡ θ t {\displaystyle k_{y}=k_{t}\cos \theta _{t}} , where k t {\displaystyle k_{t}} is the magnitude of the wave vector...
    23 KB (3,164 words) - 17:09, 6 September 2024