@article{MTMT:32791005,
	title = {The adolescent pattern of sleep spindle development revealed by HD‐EEG},
	url = {https://m2.mtmt.hu/api/publication/32791005},
	author = {Bocskai, Gábor and Pótári, Adrián and Gombos, Ferenc and Kovács, Ilona},
	doi = {10.1111/jsr.13618},
	journal-iso = {J SLEEP RES},
	journal = {JOURNAL OF SLEEP RESEARCH},
	volume = {32},
	unique-id = {32791005},
	issn = {0962-1105},
	abstract = {Sleep spindles are developmentally relevant cortical oscillatory patterns; however,
		they have mostly been studied by considering the entire spindle frequency range
		(11–15 Hz) without a distinction between the functionally and topographically different
		slow and fast spindles, using relatively few electrodes and analysing wide age ranges.
		Here, we employ high-density night sleep electroencephalography in three
		age-groups between 12 and 20 years of age (30 females and 30 males) and analyse
		the adolescent developmental pattern of the four major parameters of slow and fast
		sleep spindles. Most of our findings corroborate those very few previous studies that
		also make a distinction between slow and fast spindles in their developmental analysis.
		We find spindle frequency increasing with age. A spindle density change is not
		obvious in our study. We confirm the declining tendencies for amplitude and duration,
		although within narrower, more specific age-windows than previously determined.
		Spindle frequency seems to be higher in females in the oldest age-group.
		Based on the pattern of our findings, we suggest that high-density electroencephalography,
		specifically targeting slow and fast spindle ranges and relatively narrow
		age-ranges would advance the understanding of both adolescent cortical maturation
		and development and the functional relevance of sleep spindles in general.},
	year = {2023},
	eissn = {1365-2869}
}

@article{MTMT:32800032,
	title = {Topographical relocation of adolescent sleep spindles reveals a new maturational pattern in the human brain},
	url = {https://m2.mtmt.hu/api/publication/32800032},
	author = {Gombos, Ferenc and Bódizs, Róbert and Pótári, Adrián and Bocskai, Gábor and Berencsi, Andrea and Szakács, Hanna and Kovács, Ilona},
	doi = {10.1038/s41598-022-11098-8},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {12},
	unique-id = {32800032},
	issn = {2045-2322},
	abstract = {Current theories of human neural development emphasize the posterior-to-anterior pattern of brain maturation. However, this scenario leaves out significant brain areas not directly involved with sensory input and behavioral control. Suggesting the relevance of cortical activity unrelated to sensory stimulation, such as sleep, we investigated adolescent transformations in the topography of sleep spindles. Sleep spindles are known to be involved in neural plasticity and in adults have a bimodal topography: slow spindles are frontally dominant, while fast spindles have a parietal/precuneal origin. The late functional segregation of the precuneus from the frontoparietal network during adolescence suggests that spindle topography might approach the adult state relatively late in development, and it may not be a result of the posterior-to-anterior maturational pattern. We analyzed the topographical distribution of spindle parameters in HD-EEG polysomnographic sleep recordings of adolescents and found that slow spindle duration maxima traveled from central to anterior brain regions, while fast spindle density, amplitude and frequency peaks traveled from central to more posterior brain regions. These results provide evidence for the gradual posteriorization of the anatomical localization of fast sleep spindles during adolescence and indicate the existence of an anterior-to-posterior pattern of human brain maturation.},
	year = {2022},
	eissn = {2045-2322},
	orcid-numbers = {Bódizs, Róbert/0000-0001-5341-060X; Berencsi, Andrea/0000-0002-2330-7895; Szakács, Hanna/0000-0001-5081-7535}
}

@misc{MTMT:32548487,
	title = {The adolescent pattern of sleep spindle development revealed by HD-EEG polysomnography},
	url = {https://m2.mtmt.hu/api/publication/32548487},
	author = {Bocskai, Gábor and Pótári, Adrián and Gombos, Ferenc and Kovács, Ilona},
	unique-id = {32548487},
	abstract = {Sleep spindles are developmentally relevant cortical oscillatory patterns; however, they have mostly been studied by considering the entire spindle frequency range (11 to 15 Hz) without a distinction between the functionally and topographically different slow and fast spindles, using relatively few electrodes and analysing wide age-ranges. Here, we employ HD-EEG polysomnography in three age-groups between 12 to 20 years of age, with an equal distribution between the two genders, and analyse the adolescent developmental pattern of the four major parameters of slow and fast sleep spindles. Most of our findings corroborate those very few previous studies that also make a distinction between slow and fast spindles in their developmental analysis. We find spindle frequency increasing with age, although spindle density change is not obvious in our study. We confirm the declining tendencies for amplitude and duration, although within narrower, more specific age-windows than previously. Spindle frequency seems to be higher in females in the oldest age-group. Based on the pattern of our findings, we suggest that HD-EEG, specifically targeting slow and fast spindle ranges and relatively narrow age-ranges would advance the understanding of both adolescent development and the functional relevance of sleep spindles in general.},
	year = {2021},
	pages = {1-9}
}

@misc{MTMT:32037889,
	title = {Topographical relocation of adolescent sleep spindles reveals a new maturational pattern of the human brain},
	url = {https://m2.mtmt.hu/api/publication/32037889},
	author = {Gombos, Ferenc and Bódizs, Róbert and Pótári, Adrián and Bocskai, Gábor and Berencsi, Andrea and Szakács, Hanna and Kovács, Ilona},
	unique-id = {32037889},
	abstract = {Current theories of human neural development and brain maturation emphasize the
		posterior-to-anterior or back-to-front pattern as an unequivocal ontogenetic feature that is
		largely due to the late maturing frontal lobes. The back-to-front pattern has received
		substantial support from both anatomical and electrophysiological studies, the latter
		looking at the age-related changes in the topography of sleep slow waves. However, the
		above scenario of a unidirectional developmental and anatomical route disregards the
		major hub of the so-called default-mode network, which is a human-specific and late
		maturing neural structure of the brain, undergoing significant differentiation during
		adolescence: the precuneus. In order to understand how the late maturation of the
		precuneus might modify the presently accepted large-scale maturational pattern of the
		human brain, here we focus on sleep spindles that are known to be involved in neural
		plasticity with major sources in the precuneus in adults. We provide evidence for the
		posteriorization in the prevailing anatomical localization of fast sleep spindles. The
		predominantly central maxima in density and amplitude of fast spindles at the age of 12
		years becomes gradually shifted to the parietal regions until the age of 20. Similar changes,
		albeit at a smaller anatomical distance take place in terms of fast sleep spindle frequency.
		These findings indicate a front-to-back pattern of brain maturation and correspond with
		reports on an increased differentiation of the precuneus during adolescence.},
	year = {2021},
	orcid-numbers = {Bódizs, Róbert/0000-0001-5341-060X; Berencsi, Andrea/0000-0002-2330-7895; Szakács, Hanna/0000-0001-5081-7535}
}

@article{MTMT:31825420,
	title = {A set of composite, non-redundant EEG measures of NREM sleep based on the power law scaling of the Fourier spectrum},
	url = {https://m2.mtmt.hu/api/publication/31825420},
	author = {Bódizs, Róbert and Szalárdy, Orsolya and G. Horváth, Csenge and Ujma, Przemyslaw Péter and Gombos, Ferenc and Simor, Péter Dániel and Pótári, Adrián and Zeising, Marcel and Steiger, Axel and Dresler, Martin},
	doi = {10.1038/s41598-021-81230-7},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {11},
	unique-id = {31825420},
	issn = {2045-2322},
	year = {2021},
	eissn = {2045-2322},
	orcid-numbers = {Bódizs, Róbert/0000-0001-5341-060X; Szalárdy, Orsolya/0000-0001-9171-1147; G. Horváth, Csenge/0000-0003-2609-5565; Ujma, Przemyslaw Péter/0000-0002-7981-3009; Simor, Péter Dániel/0000-0003-0695-166X}
}

@article{MTMT:31155556,
	title = {Kell-e különórára járnia, ha nem akar?},
	url = {https://m2.mtmt.hu/api/publication/31155556},
	author = {Kovács, Ilona and Pótári, Adrián and Milanovich, Dominika},
	journal-iso = {MINDENNAPI PSZICHOLÓGIA},
	journal = {MINDENNAPI PSZICHOLÓGIA},
	volume = {6},
	unique-id = {31155556},
	issn = {2060-2626},
	year = {2019},
	pages = {26-31}
}

@article{MTMT:3307361,
	title = {The sleep EEG spectrum is a sexually dimorphic marker of general intelligence},
	url = {https://m2.mtmt.hu/api/publication/3307361},
	author = {Ujma, Przemyslaw Péter and Konrad, Boris N and Gombos, Ferenc and Simor, Péter Dániel and Pótári, Adrián and Genzel, Lisa and Pawlowski, Marcel and Steiger, Axel and Bódizs, Róbert and Dresler, Martin},
	doi = {10.1038/s41598-017-18124-0},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {7},
	unique-id = {3307361},
	issn = {2045-2322},
	abstract = {The shape of the EEG spectrum in sleep relies on genetic and anatomical factors and forms an individual “EEG fingerprint”. Spectral components of EEG were shown to be connected to mental ability both in sleep and wakefulness. EEG sleep spindle correlates of intelligence, however, exhibit a sexual dimorphism, with a more pronounced association to intelligence in females than males. In a sample of 151 healthy individuals, we investigated how intelligence is related to spectral components of full-night sleep EEG, while controlling for the effects of age. A positive linear association between intelligence and REM anterior beta power was found in females but not males. Transient, spindle-like “REM beta tufts” are described in the EEG of healthy subjects, which may reflect the functioning of a recently described cingular-prefrontal emotion and motor regulation network. REM sleep frontal high delta power was a negative correlate of intelligence. NREM alpha and sigma spectral power correlations with intelligence did not unequivocally remain significant after multiple comparisons correction, but exhibited a similar sexual dimorphism. These results suggest that the neural oscillatory correlates of intelligence in sleep are sexually dimorphic, and they are not restricted to either sleep spindles or NREM sleep.},
	year = {2017},
	eissn = {2045-2322},
	orcid-numbers = {Ujma, Przemyslaw Péter/0000-0002-7981-3009; Simor, Péter Dániel/0000-0003-0695-166X; Bódizs, Róbert/0000-0001-5341-060X}
}

@article{MTMT:3198876,
	title = {The hemispheric lateralization of sleep spindles in humans},
	url = {https://m2.mtmt.hu/api/publication/3198876},
	author = {Bódizs, Róbert and Gombos, Ferenc and Ujma, Przemyslaw Péter and Szakadát, Sára and Sándor, Piroska and Simor, Péter Dániel and Pótári, Adrián and Konrad, BN and Genzel, L and Steiger, A and Dresler, M and Kovács, Ilona},
	doi = {10.1556/2053.01.2017.002},
	journal-iso = {SLEEP SPINDLES CORTICAL UP STATES},
	journal = {SLEEP SPINDLES & CORTICAL UP STATES},
	volume = {1},
	unique-id = {3198876},
	issn = {2559-9070},
	keywords = {Temporal Lobe; Sleep spindles; hemispheric lateralization; gender differences; sexual dimorphism; sigma waves},
	year = {2017},
	pages = {42-54},
	orcid-numbers = {Bódizs, Róbert/0000-0001-5341-060X; Ujma, Przemyslaw Péter/0000-0002-7981-3009; Szakadát, Sára/0000-0001-8176-7075; Simor, Péter Dániel/0000-0003-0695-166X}
}

@article{MTMT:3117265,
	title = {Age-related changes in sleep EEG are attenuated in highly intelligent individuals},
	url = {https://m2.mtmt.hu/api/publication/3117265},
	author = {Pótári, Adrián and Ujma, Przemyslaw Péter and Konrad, Boris N and Genzel, Lisa and Simor, Péter Dániel and Körmendi, János and Gombos, Ferenc and Steiger, Axel and Dresler, Martin and Bódizs, Róbert},
	doi = {10.1016/j.neuroimage.2016.09.039},
	journal-iso = {NEUROIMAGE},
	journal = {NEUROIMAGE},
	volume = {146},
	unique-id = {3117265},
	issn = {1053-8119},
	abstract = {Abstract Impaired sleep is a frequent complaint in ageing and a risk factor for many diseases. Non-rapid eye movement (NREM) sleep EEG delta power reflects neural plasticity and, in line with age-related cognitive decline, decreases with age. Individuals with higher general intelligence are less affected by age-related cognitive decline or other disorders and have longer lifespans. We investigated the correlation between age and EEG power in 159 healthy human subjects (age range: 17-69 years), and compared an average (IQ<120; N=87) with a high (IQ≥120; N=72) intelligence subgroup. We found less age-related decrease in all-night relative NREM sleep EEG delta power in the high intelligence subgroup. Our results suggest that highly intelligent individuals are less affected by the sleep-related effects of biological ageing, and therefore potentially less at risk for age-related cognitive deficits and other diseases.},
	keywords = {Intelligence; Electroencephalography; sleep; Aging; slow wave activity; Fluid reasoning},
	year = {2017},
	eissn = {1095-9572},
	pages = {554-560},
	orcid-numbers = {Ujma, Przemyslaw Péter/0000-0002-7981-3009; Simor, Péter Dániel/0000-0003-0695-166X; Körmendi, János/0000-0002-3810-6033; Bódizs, Róbert/0000-0001-5341-060X}
}

@article{MTMT:3113987,
	title = {Sex differences in the hemispheric lateralization of sleep spindles in humans},
	url = {https://m2.mtmt.hu/api/publication/3113987},
	author = {Bódizs, Róbert and Dresler, M and Ujma, Przemyslaw Péter and Gombos, Ferenc and Szakadát, Sára and Sándor, Piroska and Simor, Péter Dániel and Pótári, Adrián and Konrad, BN and Genzel, L and Steiger, A and Kovács, Ilona},
	journal-iso = {J SLEEP RES},
	journal = {JOURNAL OF SLEEP RESEARCH},
	volume = {25},
	unique-id = {3113987},
	issn = {0962-1105},
	year = {2016},
	eissn = {1365-2869},
	pages = {293-293},
	orcid-numbers = {Bódizs, Róbert/0000-0001-5341-060X; Ujma, Przemyslaw Péter/0000-0002-7981-3009; Szakadát, Sára/0000-0001-8176-7075; Simor, Péter Dániel/0000-0003-0695-166X}
}