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Neural mechanism
Phase precession is a neurophysiological process in which the time of firing of action potentials by individual neurons occurs progressively earlier in
Phase_precession
Phase of a cycle
mechanics, the geometric phase (also known as the Pancharatnam–Berry phase, Pancharatnam phase, or Berry phase) is a phase difference acquired over the
Geometric_phase
Place-activated hippocampus cells found in some mammals
a process termed phase precession. Upon entering a place field, place cells will fire in bursts at a particular point in the phase of the underlying
Place_cell
Periodic change in the direction of a rotation axis
Precession is a change in the orientation of the rotational axis of a rotating body. In an appropriate reference frame it can be defined as a change in
Precession
American–Irish neuroscientist
they show a specific kind of temporal coding in the form of theta phase precession. He shared the Nobel Prize in Physiology or Medicine in 2014, together
John_O'Keefe_(neuroscientist)
Behavior observed in neurons
spatial distance is called phase precession. Neural oscillation Phase response curve Place cell#Phase precession Neural coding#Phase-of-firing code Circadian
Phase_resetting_in_neurons
Topics referred to by the same term
relativistic correction to the precession of a gyroscope near a large rotating mass such as the Earth Phase precession, a pattern of neuronal firing in
Precession_(disambiguation)
Change of rotational axis in an astronomical body
In astronomy, axial precession is a gravity-induced, slow, and continuous change in the orientation of an astronomical body's rotational axis. In the absence
Axial_precession
Type of neuron
hippocampal place cells in that they show phase precession—that is, their spike activity advances from late to early phases of the theta cycle as an animal passes
Grid_cell
Biological process that adjusts the strength of connections between neurons in the brain
place cells fire at progressively earlier phases of each theta cycle, a phenomenon known as phase precession. This effectively compresses temporally distributed
Spike-timing-dependent plasticity
Spike-timing-dependent_plasticity
Neural oscillatory pattern
potentiation, a potential cellular mechanism of learning and memory. Phase precession along the theta wave in the hippocampus permits neural signals representing
Theta_wave
Global climate cycles
Croll's earlier hypothesis that variations in eccentricity, axial tilt, and precession combined to result in cyclical variations in the intra-annual and latitudinal
Milankovitch_cycles
Vertebrate brain region
in relation to local theta waves, a spatiotemporal process termed phase precession. Cells with location-specific firing patterns have been reported during
Hippocampus
Device to demonstrate Earth's rotation
due to Earth's rotation. The precession rate of the pendulum's oscillation plane depends on latitude. The angular precession rate Ω p {\displaystyle \Omega
Foucault_pendulum
Averaging technique for electron diffraction
Precession electron diffraction (PED) is a specialized method to collect electron diffraction patterns in a transmission electron microscope (TEM). By
Precession electron diffraction
Precession_electron_diffraction
Method by which information is represented in the brain
oscillations in low frequencies. Phase-of-firing code is loosely based on the phase precession phenomena observed in place cells of the hippocampus. Another feature
Neural_coding
Type of MRI sequence
second case there are steady-state free precession imaging (SSFP) sequences. In-phase (IP) and out-of-phase (OOP) sequences correspond to paired gradient
Gradient_echo
"anomalous" precession of the perihelion of Mercury, the bending of light in gravitational fields, and the gravitational redshift. The precession of Mercury
Tests_of_general_relativity
Transient electrical signals
dendrites of hippocampal pyramidal cells in vivo: activity-dependent phase-precession of action potentials". Hippocampus. 8 (3): 244–261. doi:10
Local_field_potential
Norwegian psychologist and neuroscientist (born 1963)
T., Moser, M.-B. and Moser, E.I. (2008). "Hippocampus-independent phase precession in entorhinal grid cells". Nature 453, 1248–1252. Kjelstrup, K.B.,
May-Britt_Moser
Norwegian psychologist and neuroscientist
T., Moser, M.-B. and Moser, E.I. (2008). Hippocampus-independent phase precession in entorhinal grid cells. Nature 453, 1248–1252. Kjelstrup, K.B., Solstad
Edvard_Moser
Part of the brain of mammals
"Hippocampal CA3 region predicts memory sequences: accounting for the phase precession of place cells". Learning and Memory. 3 (2): 279–287. doi:10.1101/lm
Hippocampal_subfields
Phases of Earth as seen from the Moon
Earth phase is the shape of the directly sunlit portion of Earth as viewed from the Moon (or elsewhere extraterrestrially). From the Moon, Earth phases gradually
Earth_phase
Thought experiment in special relativity
calculated for the 6 phases: Phase 1 : c / a arsinh ( a T a / c ) {\displaystyle :\quad c/a\ {\text{arsinh}}(a\ T_{a}/c)\,} Phase 2 : T c 1 − V 2 /
Twin_paradox
Magnetic resonance imaging sequence
Steady-state free precession (SSFP) imaging is a magnetic resonance imaging (MRI) sequence which uses steady states of magnetizations. In general, SSFP
Steady-state free precession imaging
Steady-state_free_precession_imaging
American neuroscientist
theta waves in the function of the hippocampus, via their role in phase precession and firing replay. This work led to a greater understanding of memory
William_E._Skaggs
compensate for phase-lag and provide helicopter response that matches movement of the cyclic stick. Phase lag is not caused by gyroscopic precession, which always
Phase_lag_(rotorcraft)
Global climate phenomenon
regions of the world. The warming phase of the sea surface temperature is known as "El Niño" and the cooling phase as "La Niña". The Southern Oscillation
El_Niño–Southern_Oscillation
The Moon's circuit around Earth
apsidal precession is distinct from the nodal precession of its orbital plane and axial precession of the moon itself. Exaggerated apsidal precession of the
Orbit_of_the_Moon
Unit of time based on Earth's orbit
two, for several reasons explained below. Because of the Earth's axial precession, this year is about 20 minutes shorter than the sidereal year. The mean
Year
Cyclic climate pattern
Earth's axis of rotation and is known as axial precession. While the second phase is known as apsidal precession or procession of the ellipse and is related
North_African_climate_cycles
1981 book by Jean Baudrillard
meaningless by being infinitely mutable; he called this phenomenon the "precession of simulacra". Simulacra and Simulation delineates the sign-order into
Simulacra_and_Simulation
Moon stops moving north or south
about 18.134° (north or south) and 28.725° (north or south), due to lunar precession. These extremes are called the minor and major lunar standstills. The
Lunar_standstill
French mathematician, physicist and engineer (1854–1912)
equivalence Relativity of simultaneity Relativistic Doppler effect Thomas precession Relativistic disk Bell's spaceship paradox Ehrenfest paradox Spacetime
Henri_Poincaré
Loss of quantum coherence
components of the wave function are decoupled from a coherent system and acquire phases from their immediate surroundings. A total superposition of the global or
Quantum_decoherence
Length of time after which an eclipse repeats
Arising naturally due to synchronization between lunar phase, nodal precession, and apsidal precession, it can be used to predict eclipses of the Sun and
Saros_(astronomy)
Russian physicist
matter ... It was observed as the spontaneously self-organized phase-coherent precession of spins in an antiferromagnetic superfluid 3He-B. This state
Yury_Bunkov
German-born theoretical physicist (1879–1955)
a gravitational lens but also to another astronomical phenomenon, the precession of the perihelion of Mercury (a slow drift in the point in Mercury's elliptical
Albert_Einstein
Helicopter aerodynamic effect
roll to gyroscopic precession, however this is not correct: gyroscopic precession always results in a shift of 90 degrees, whereas phase lag can be less
Transverse_flow_effect
Mathematical curve outputted from a specific pair of parametric equations
and trace a curve slightly adjacent during the next orbit showing as a precession of the ellipse. The pattern closes if the frequencies are whole number
Lissajous_curve
Measurement of blood volume
normalized to age, gender and body surface area from steady-state free precession cardiovascular magnetic resonance" (PDF). European Heart Journal. 27 (23):
End-diastolic_volume
Long term dynamical interactions that disrupt the Solar System
Mercury's perihelion-precession rate is dominated by planet–planet interactions, but about 7.5% of Mercury's perihelion precession rate comes from the
Stability_of_the_Solar_System
Medical imaging technique
prepolarization (on the order of 10–100 mT) and by measuring the Larmor precession fields at about 100 microtesla with highly sensitive superconducting quantum
Magnetic_resonance_imaging
Spectroscopic technique based on change of nuclear spin state
voltage induced in a detection coil by precession of the nuclear spins around B0. After an RF pulse, precession usually occurs with the nuclei's Larmor
Nuclear_magnetic_resonance
Discrepancy between past temperatures and the amount of incoming solar radiation
contribution to variation in insolation is much smaller than those of precession and obliquity. The 100,000-year problem refers to the lack of an obvious
100,000-year_problem
Long-term future of planet Earth
increases the precession rate of the Earth's rotation axis, thereby avoiding resonances between the precession of the rotation and precession of the planet's
Future_of_Earth
Time an astronomical object takes to complete one orbit around another object
the Sun before the orbit completes. This cycle of axial precession for Earth, known as precession of the equinoxes, recurs roughly every 25,772 years. Periods
Orbital_period
Time between successive new moons
Point of Aries (Sun's location at the March equinox). Because of Earth's precession of the equinoxes, this point moves back slowly along the ecliptic. Therefore
Lunar_month
Claim of past rapid changes of the Earth's axis
tectonic events or relatively rapid climate changes. There is evidence of precession and changes in axial tilt, but this change is on much longer timescales
Cataclysmic pole shift hypothesis
Cataclysmic_pole_shift_hypothesis
Greek astronomer, geographer and mathematician (c. 190 – c. 120 BCE)
trigonometry, but is most famous for his incidental discovery of the precession of the equinoxes. Hipparchus was born in Nicaea, Bithynia, and probably
Hipparchus
Speed of electromagnetic waves in vacuum
wave velocities can exceed c. The phase velocity of X-rays through most glasses can routinely exceed c, but phase velocity does not determine the velocity
Speed_of_light
Medical imaging technique
their equilibrium orientation, the protons undergo a rotating motion (precession), much like a spun wheel under the effect of gravity. The protons will
Physics of magnetic resonance imaging
Physics_of_magnetic_resonance_imaging
Apparent path of the Sun on the celestial sphere
to unmoving against the background stars, its motion due to planetary precession being roughly 1/100 that of the celestial equator. Spherical coordinates
Ecliptic
Measure of charge inside a neutron
violating phases. The fine-tuning is, however, not as severe yet. In order to extract the neutron EDM, one measures the Larmor precession of the neutron
Neutron electric dipole moment
Neutron_electric_dipole_moment
Compact astronomical body
events suggests modifications of these theories may be needed. New exotic phases of matter could allow other kinds of massive objects. Quark stars would
Black_hole
Mathematical transformation in physics
contraction Relativity of simultaneity Relativistic Doppler effect Thomas precession Ladder paradox Twin paradox Terrell rotation Spacetime Light cone World
Time-translation_symmetry
Northern pole-star; brightest star in Ursa Minor
celestial north pole, its right ascension is changing rapidly due to the precession of Earth's axis, going from 2.5h in AD 2000 to 6h in AD 2100. Twice in
Polaris
Clock designed to keep time for 10,000 years
and the precession of the zodiac. Around this will be a display showing the positions of the Sun and the Moon in the sky, as well as the phase and angle
Clock_of_the_Long_Now
MRI sequence simulation technique
magnetic resonance imaging and nuclear magnetic resonance the extended phase graph (EPG) is a mathematical framework used to track how magnetization
Extended_phase_graph
Ancient Greek analogue astronomical computer
supplies a precessional advancement to the ellipticity modelling with a period of 8.8826 years, compared with the current value of precession period of
Antikythera_mechanism
Interplay between observation, experiment, and theory in science
the work of Hipparchus (190–120 BCE), when determining a value for the precession of the Earth, while controlled experiments can be seen in the works of
Scientific_method
Trajectory of Earth around the Sun
; Francou, G.; Laskar, J. (February 1994). "Numerical expressions for precession formulae and mean elements for the Moon and planets". Astronomy and Astrophysics
Earth's_orbit
Change in sea level due to gravity
harmonic development of the tide-generating potential accounting for precession, nutation, and perturbations due to figure and planetary terms". AAS Division
Tide
Measure of heart volume
normalized to age, gender and body surface area from steady-state free precession cardiovascular magnetic resonance" (PDF). European Heart Journal. 27 (23):
End-systolic_volume
Simple quantum mechanical system
lead to the precession about the axis defined by the applied magnetic field (this is the quantum mechanical equivalent of Larmor precession) The above
Two-state_quantum_system
Type of geocentric orbit
celestial sphere to keep pace with the Earth's movement around the Sun. This precession is achieved by tuning the inclination to the altitude of the orbit (see
Sun-synchronous_orbit
Pattern observed on the Moon's surface
Orbital elements Distance Perigee and apogee Libration Nodes Nodal period Precession Syzygy New moon Full moon Eclipses Lunar eclipse Total penumbral lunar
Man_in_the_Moon
Third planet from the Sun
precessing around in a complete circle over each 25,800-year cycle; this precession is the reason for the difference between a sidereal year and a tropical
Earth
Hypothetical phases of matter
high-density low-temperature region. Models of the cooling, spin-down, and precession of these stars offer information about the relevant properties of their
QCD_matter
Eschatological beliefs about the year
astrological interpretations associated with the phenomenon of axial precession. Chief among these ideas is the astrological concept of a "galactic alignment"
2012_phenomenon
Moon of Jupiter
to 167.8°, respectively. Kallichore's orbit exhibits nodal and apsidal precession with periods of 86.3 and 49.1 years, respectively. A 2011 study by Julien
Kallichore_(moon)
Form of electron microscopy
Marie; van Helvoort, Antonius T. J. (August 2018). "Crystal Phase Mapping by Scanning Precession Electron Diffraction and Machine Learning Decomposition"
4D scanning transmission electron microscopy
4D_scanning_transmission_electron_microscopy
Orbital gravitational observatory
more precise explanation for the space curvature part of the geodetic precession is obtained by using a nearly flat cone to model the space curvature of
Gravity_Probe_B
Device that measures magnetism
instrument produces poor or no measurements. All optically pumped, proton-free precession, and Overhauser magnetometers experience some dead zone effects. Gradient
Magnetometer
Holocene climate period during which northern Africa was wetter than today
widespread. Beginning in the 1970s, the humidification was attributed to precessional changes. The development and existence of the African humid period has
African_humid_period
Hypothetical elementary particle
external electric field, a precession in the nuclear spin rotation occurs. This precession can be measured using precession magnetometry and if detected
Axion
Chamber of the heart
normalized to age, gender and body surface area from steady-state free precession cardiovascular magnetic resonance" (PDF). European Heart Journal. 27 (23):
Ventricle_(heart)
Circumbinary exoplanet orbiting TOI-1338
that TOI-1338 b's orbit exhibits apsidal precession with a period of roughly 23 years and nodal precession with a period of 21.4 years. The planet also
TOI-1338_b
Twelve 30° sectors of the ecliptic, as defined by Western astrology
out of alignment with the constellations they were named after by axial precession of the Earth while Hindu astrology measurements correct for this shifting
Astrological_sign
to as the precession of the equinoxes. Apsidal precession refers to a steady change in the orientation of an orbit, such as the precession in the orbit
Glossary_of_astronomy
Aspect of relativity in physics
Challenge Alliance. The largest amplitude of emission occurs during the merger phase, which can be modeled with the techniques of numerical relativity. The first
Gravitational_wave
Amount by which an orbit deviates from a perfect circle
not the axis of rotation, which is referred to as axial precession. Both types of precession, along with changes in eccentricity and axial tilt, form
Orbital_eccentricity
First planet from the Sun
mathematician and astronomer Urbain Le Verrier reported that the slow precession of Mercury's orbit around the Sun could not be completely explained by
Mercury_(planet)
Apparent oscillation of a minor body seen from the major body it orbits
is the oscillation of orientation in space about uniform rotation and precession. There are physical librations about all three axes. The sizes are roughly
Libration
Planet that orbits two stars instead of one
which causes the precession rate of the stars to increase, but the precession rate of the planet to slow. When the two precession rates coincide, the
Circumbinary_planet
Mathematical model combining space and time
Retrieved 16 December 2006. Feng, W. X. (3 August 2022). "Gravothermal phase transition, black holes and space dimensionality". Physical Review D. 106
Spacetime
Bending of electron beams due to electrostatic interactions with matter
"Structure Model for the Phase AlmFe Derived from Three-Dimensional Electron Diffraction Intensity Data Collected by a Precession Technique. Comparison with
Electron_diffraction
Light that reaches Earth from the Moon
the sun. The intensity of moonlight varies greatly depending on the lunar phase, with the full moon typically providing about 0.05–0.1 lux illumination
Moonlight
Type of magnetic phenomenon
Larmor or precession frequency. As a particular example, a microwave signal circularly polarized in the same direction as this precession strongly interacts
Ferrimagnetism
Small deviation in the Earth's axis of rotation relative to the solid earth
and Sun—are also called nutations, except for the slowest, which are precessions of the equinoxes. The existence of Earth's free nutation was predicted
Chandler_wobble
Star in the constellation Virgo
be the star that gave Hipparchus the data that led him to discover the precession of the equinoxes. A temple to Menat (an early Hathor) at Thebes was oriented
Spica
Physics of the Earth and its vicinity
magnetic compasses, and later extending to Newtonian analyses of tides, precession, and Earth’s physical properties. Today, geophysics is pursued for fundamental
Geophysics
Mathematical theory of the geometry of space and time
Mercury. The perihelion of Mercury's orbit exhibited an excess rate of precession over that which could be explained by the tugs of the other planets. The
Curved_spacetime
Theory of gravitation as curved spacetime
Einstein's equations). Relativistic precession has been observed for all planets that allow for accurate precession measurements (Mercury, Venus, and Earth)
General_relativity
Concept from geodesy
GLONASS). Celestial pole offsets are described in the IAU models of precession and nutation. The observed differences with respect to the conventional
Earth_orientation_parameters
Aspect of Precolumbian Maya science
the background of stars. He proposes that this is an observation of the precession of the equinoxes and that the serpent series shows how the Maya calculated
Maya_astronomy
Desert on the African continent
between desert and savanna grassland in a 20,000-year cycle caused by the precession of Earth's axis (about 26,000 years) as it rotates around the Sun, which
Sahara
Term for cultural process of shifting ideas of reality
ISBN 9781527511583. Baudrillard, Jean (1994). Simulacra & Simulation (PDF). The Precession of Simulacra: University of Michigan Press. p. 1. Archived from the original
Hyperreality
Unit of time, usually 28 to 31 days
slightly shorter than the sidereal month (27.32166) days, because of precession of the equinoxes. An anomalistic month is the average time the Moon takes
Month
Type of magnetometer
to perform magnetic resonance imaging (MRI). While high-field MRI uses precession fields of one to several teslas, SQUID-detected MRI uses measurement fields
SQUID
PHASE PRECESSION
PHASE PRECESSION
Girl/Female
Tamil
Shashikala | ஷஷிகலா
Phases of Moon
Shashikala | ஷஷிகலா
Surname or Lastname
English
English : metonymic occupational name for a huntsman, or rather a nickname for an exceptionally skilled huntsman, from Middle English chase ‘hunt’ (Old French chasse, from chasser ‘to hunt’, Latin captare).Southern French : topographic name for someone who lived in or by a house, probably the occupier of the most distinguished house in the village, from a southern derivative of Latin casa ‘hut’, ‘cottage’, ‘cabin’.Thomas Chase came to MA from Chesham, Buckinghamshire, England, in the 1640s, and had many prominent descendants. Samuel Chase, born in Somerset Co., MD, in 1741, was one of the first members of the U.S. Supreme Court; Philander Chase, born in Cornish, NH, in 1741 was a prominent Episcopal clergyman, and his nephew Salmon Portland Chase (1808–73), also born in Cornish, was governor of OH, a U.S. senator, and secretary of the U.S. Treasury during the Civil War.
Girl/Female
Tamil
Art, Phases of Moon
Male
French
French form of Latin Stephanus, STÉPHANE means "crown."
Boy/Male
German
Chase; Hunt
Girl/Female
Hindu
Phases of Moon
Girl/Female
Indian
Phases of Quran
Boy/Male
Hindu, Indian
Gods Prayer; Sanskrit Phrase
Boy/Male
American, Australian, British, Chinese, Christian, English, French
Huntsman; Hunter
Girl/Female
Tamil
Kala Devi | கலா தேவீ
Art, Phases of Moon
Kala Devi | கலா தேவீ
Boy/Male
English American
Huntsman.
Girl/Female
Tamil
Phase, Time of day
Girl/Female
Hindu
Art, Phases of Moon
Surname or Lastname
German
German : nickname for a swift runner or a timorous person, from Middle High German, Middle Low German hase ‘hare’.Jewish (Ashkenazic) : ornamental name from German Hase ‘hare’.English : from a Middle English nickname, Hase, from Old English hÄs ‘harsh, raucous, or hoarse voice’.Japanese : usually written with characters meaning ‘long valley’; habitational name from a place in Yamato (now Nara prefecture). Listed in the Shinsen shÅjiroku. Some bearers are descended from the Taira clan; they are found mainly in eastern Japan. Also pronounced Nagaya and Nagatani; the original pronunciation was Hatsuse, meaning ‘beginning of the strait’.
Girl/Female
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi, Telugu
Phase; Time of Day
Surname or Lastname
English
English : from Middle English pese ‘pea’, hence a metonymic occupational name for a grower or seller of peas, or a nickname for a small and insignificant person. The word was originally a collective singular (Old English peose, pise, from Latin pisa) from which the modern English vocabulary word pea is derived by folk etymology, the singular having been taken as a plural.Robert and John Pease came from Great Baddow, Essex, England, to Salem, MA, in 1634. In 1644 Robert died, leaving a son (also called Robert) who was apprenticed as a weaver in Salem. By 1646 John Pease was living on Martha’s Vineyard.
Girl/Female
Indian, Telugu
A Phase of Life; Childhood
Girl/Female
Hindu
Art, Phases of Moon
Girl/Female
Indian, Telugu
Phrase of Music
Male
English
Middle English surname (of Norman French origin) transferred to forename use, CHASE means "hunter."Â
PHASE PRECESSION
PHASE PRECESSION
Girl/Female
Teutonic French
Ruler of the home.
Boy/Male
Tamil
Boy/Male
Hindu
Knowledge
Boy/Male
Indian
Joy
Female
German
Low German diminutive form of Latin Anna, ANNEKEN means "favor; grace."
Surname or Lastname
English
English : variant of Mitchener.
Surname or Lastname
English
English : habitational name from Northop in Flintshire, named with Old English norð ‘north’ + hop ‘enclosure (in marsh or moor)’, ‘enclosed valley’.
Boy/Male
Tamil
Girl/Female
Biblical
Silence, resemblance.
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Holy Sign; Lovable; Nice; Auspicious
PHASE PRECESSION
PHASE PRECESSION
PHASE PRECESSION
PHASE PRECESSION
PHASE PRECESSION
pl.
of Phase
n.
A brief expression, sometimes a single word, but usually two or more words forming an expression by themselves, or being a portion of a sentence; as, an adverbial phrase.
pl.
of Pease
v. i.
To group notes into phrases; as, he phrases well. See Phrase, n., 4.
v. i.
To give chase; to hunt; as, to chase around after a doctor.
a.
Without a phase, or visible form.
n.
Any one point or portion in a recurring series of changes, as in the changes of motion of one of the particles constituting a wave or vibration; one portion of a series of such changes, in distinction from a contrasted portion, as the portion on one side of a position of equilibrium, in contrast with that on the opposite side.
n.
The liberty or franchise of having a chase; free chase.
n.
Any appearance or aspect of an object of mental apprehension or view; as, the problem has many phases.
n.
Pulse; pease.
n.
See Phase.
p. pr. & vb. n.
of Chase
n.
That which is exhibited to the eye; the appearance which anything manifests, especially any one among different and varying appearances of the same object.
v. t.
To chase.
a.
Resembling prase.
imp. & p. p.
of Phrase
p. pr. & vb. n.
of Phrase
n.
A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form of enlightened disk; as, the phases of the moon or planets. See Illust. under Moon.
pl.
of Pease
v. t.
To follow as if to catch; to pursue; to compel to move on; to drive by following; to cause to fly; -- often with away or off; as, to chase the hens away.