@article{MTMT:2318569,
	title = {K-complex, a reactive EEG graphoelement of NREM sleep: an old chap in a new garment.},
	url = {https://m2.mtmt.hu/api/publication/2318569},
	author = {Halász, Péter},
	doi = {10.1016/j.smrv.2005.04.003},
	journal-iso = {SLEEP MED REV},
	journal = {SLEEP MEDICINE REVIEWS},
	volume = {9},
	unique-id = {2318569},
	issn = {1087-0792},
	abstract = {This review summarises data gathered on the KC phenomenon over the past 70 yr. The following issues are discussed: definitions, morphology and topography of KC, the regular participation in NREM sleep, elicitability features of evoked KC, autonomic and motor concomitants, relationship of KC with information processing during NREM sleep, relationship of KC and deltas of NREM sleep, and relationship of KC with sleep cyclicity. KC is a complex multifunctional phenomenon of the sleeping brain involved in information processing and defence against the arousal effect of sensory stimuli. To put the old chap in a new garment, the relationship of KC with synchronisation-type and desynchronisation-type micro-arousals, and the 'cyclic alternating pattern', will be discussed, with an emphasis on the sleep-protecting role of KC and synchronisation-type answers in sleep regulation executed by phasic events. Lastly, the role of KC providing gating functions in idiopathic generalized epilepsies and other, different, sleep disorders are characterised. A 'theoretical epilogue' is appended to show some system theoretical and regulational aspects.},
	keywords = {Humans; Periodicity; Delta rhythm; Arousal/physiology; *Electroencephalography; Cerebral Cortex/physiology; Sleep Stages/*physiology; Muscle, Skeletal/physiology; Mental Processes/physiology},
	year = {2005},
	eissn = {1532-2955},
	pages = {391-412}
}

@article{MTMT:1121140,
	title = {Multiple microelectrode-recording system for human intracortical applications.},
	url = {https://m2.mtmt.hu/api/publication/1121140},
	author = {Ulbert, István and Halgren, E and Heit, G and Karmos, György},
	doi = {10.1016/S0165-0270(01)00330-2},
	journal-iso = {J NEUROSCI METH},
	journal = {JOURNAL OF NEUROSCIENCE METHODS},
	volume = {106},
	unique-id = {1121140},
	issn = {0165-0270},
	abstract = {The human brain is dominated by the neocortex, a large folded surface, whose
		cellular and synaptic elements are arranged in layers. Since cortical structure
		is relatively constant across its surface, local information processing can be
		inferred from multiple laminar recordings of its electrical activity along a line
		perpendicular to its surface. Such recordings need to be spaced at least as close
		together as the cortical layers, and need to be wideband in order to sample both 
		low frequency synaptic currents as well as high-frequency action potentials.
		Finally, any device used in the human brain must comply with strict safety
		standards. The current paper presents details of a system meeting these criteria,
		together with sample results obtained from epileptic subjects undergoing acute or
		chronic intracranial monitoring for definition of the epileptogenic region.},
	year = {2001},
	eissn = {1872-678X},
	pages = {69-79},
	orcid-numbers = {Ulbert, István/0000-0001-9941-9159}
}