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- H. Houston MerrittAmerican neurologist (1902–1979)
- HabenulaSmall bilateral neuronal structure in the brain of vertebrates
- Hagai BergmanIsraeli neurologist (born 1952)
- Haim SompolinskyIsraeli theoretical neuroscientist (born 1949)
- Hajime TeiJapanese neuroscientist
- Hallucinogen persisting perception disorderPersistence of visual distortions after using drugs
- Hamutal SlovinIsraeli neuroscientist and neurophysiologist
- Handedness and mathematical abilityPotential link between human handedness and mathematical ability
- Hanger reflexInvoluntary head rotation phenomenon caused by lateral skin shear on the head
- Hannah MonyerGerman biologist
- Hans BergerGerman psychiatrist (1873-1941)
- Hans Gustav Wilhelm SteinertGerman neurologist
- Hans Helmut KornhuberGerman neurologist (1928–2009)
- Hans KuypersDutch neuroscientist (1925–1989)
- Hans ThoenenSwiss psychiatrist
- Hans van AbeelenDutch behaviour geneticist
- Harry G. SperlingAmerican psychologist (1924–2023)
- Harry M. WeaverAmerican neuroscientist (1909–1977)
- Hartmut WekerleGerman neurobiologist
- Head transplantExperimental surgical operation
- Heather BerlinAmerican neuroscientist
- Heather Cameron (neuroscientist)American neuroscientist
- Heather WhalleyScottish neuroscientist
- Hebb–Williams mazeMaze used to measure cognitive ability of small animals
- Heidi Johansen-BergBritish neuroscientist
- Heinrich SachsGerman neurologist and neuroanatomist
- Helen MurrayNew Zealand ice hockey defender
- Helen NevilleAmerican psychologist & scholar
- Helen Wills Neuroscience InstituteScientific institute
- HelicotremaConnection between the scala tympani and the scala vestibuli in the cochlea
- HemimegalencephalyDisorder affecting development of one side of the brain
- Henry Herbert DonaldsonAmerican neuroscientist (1857-1938)
- Hereditary diffuse leukoencephalopathy with spheroidsMedical condition
- Hereditary hyperbilirubinemiaMedical condition
- Hering's law of equal innervationIdea that the eyes move in parallel because their muscles are equally innervated
- Herman S. BachelardBritish neurochemist
- Hermona SoreqIsraeli biologist
- HeterotopagnosiaInability to locate another person's body parts
- Heterotrimeric G proteinHeterotrimeric G protein, also sometimes referred to as the "large" G proteins (as opposed
- Hg1 (toxin)Hg1 scorpion toxin
- Hidden BrainScience podcast by Shankar Vedantam
- High-frequency oscillationsBrainwaves with frequencies larger than 80 Hz
- Hippocampal replayPhenomenon observed in several animals
- Hippocampus (journal)Academic journal
- History and culture of substituted amphetaminesAmphetamine and methamphetamine are central nervous system stimulants used to treat a vari
- History of catecholamine researchThe catecholamines are a group of neurotransmitters composed of the endogenous substances
- History of opium in ChinaThe history of opium in China began with the use of opium for medicinal purposes during th
- Holonomic brain theoryQuantum interpretation of neuroscience
- Homeostatic feelingFeelings, like thirst and well-being, that tell us about the state of the body
- Hongjun SongChinese-American neuroscientist and stem cell biologist
- Hongkui ZengHongkui Zeng is the Director of the Allen Institute for Brain Science in Seattle, where sh
- HonokiolChemical compound
- HookahType of water pipe
- Hopfield networkForm of artificial neural network
- How the Self Controls Its Brain1994 book by John Carew Eccles
- Howard E. GendelmanScientist, HIV researcher, Parkinson's researcher
- Howard Feldman (neuroscientist)American neuroscientist
- HSD2 neuronHSD2 neurons are a small group of neurons in the brainstem which are uniquely sensitive to
- Human sex pheromonesPhysiological theory on human attraction
- Human–animal communicationVerbal and non-verbal interspecies communication
- HydranencephalyMedical condition
- HypergraphiaPsychological condition wherein a person is compelled to write or draw
- Hypertension and the brainHypertension is a condition characterized by an elevated blood pressure in which the long
- HyperuricosuriaHyperuricosuria is a medical term referring to the presence of excessive amounts of uric a
- HypofrontalityState of decreased cerebral blood flow
- Hypothalamospinal tractThe hypothalamospinal tract is an unmyelinated non-decussated descending nerve tract that