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267449 occurrences (No.100 in the rank) during 5 years in the PubMed. [no cache] 500 found

174) In auditory cortex, however, functional properties of genetically identified inhibitory neurons are poorly characterized.

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PMID:24425250 DOI:10.1093/cercor/bht417

2015 Cerebral cortex (New York, N.Y. : 1991)

* Differential Receptive Field Properties of Parvalbumin and Somatostatin Inhibitory Neurons in Mouse Auditory Cortex.

- Cortical inhibitory circuits play important roles in shaping sensory processing. In auditory cortex, however, functional properties of genetically identified inhibitory neurons are poorly characterized. By two-photon imaging-guided recordings, we specifically targeted 2 major types of cortical inhibitory neuron, parvalbumin (PV) and somatostatin (SOM) expressing neurons, in superficial layers of mouse auditory cortex. We found that PV cells exhibited broader tonal receptive fields with lower intensity thresholds and stronger tone-evoked spike responses compared with SOM neurons. The latter exhibited similar frequency selectivity as excitatory neurons. The broader/weaker frequency tuning of PV neurons was attributed to a broader range of synaptic inputs and stronger subthreshold responses elicited, which resulted in a higher efficiency in the conversion of input to output. In addition, onsets of both the input and spike responses of SOM neurons were significantly delayed compared with PV and excitatory cells. Our results suggest that PV and SOM neurons engage in auditory cortical circuits in different manners: while PV neurons may provide broadly tuned feedforward inhibition for a rapid control of ascending inputs to excitatory neurons, the delayed and more selective inhibition from SOM neurons may provide a specific modulation of feedback inputs on their distal dendrites.

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(1)50 magnetic	(18)4 gastrointestinal	(35)3 integration	(52)2 connections
(2)38 connectivity	(19)4 outcome	(36)3 interactions	(53)2 differentiation
(3)29 and	(20)4 outcomes	(37)3 movement	(54)2 domains
(4)8 limitations	(21)4 relationships	(38)3 single	(55)2 endurance
(5)7 network	(22)4 unit	(39)3 status	(56)2 health
(6)7 recovery	(23)3 Assessment	(40)3 status,	(57)2 imaging
(7)7 role	(24)3 MRI	(41)3 studies	(58)2 impact
(8)6 changes	(25)3 Well-Being	(42)2 CD133	(59)2 integrity
(9)6 results	(26)3 activation	(43)2 HL	(60)2 losses
(10)5 alterations	(27)3 brain	(44)2 ability	(61)2 networks
(11)5 limitation	(28)3 consequences	(45)2 activity	(62)2 neuronal
(12)5 neuroimaging	(29)3 coupling	(46)2 analyses	(63)2 organization
(13)5 properties	(30)3 decline	(47)2 as	(64)2 parameters
(14)5 theory	(31)3 deficits	(48)2 assays	(65)2 roles
(15)4 capacity	(32)3 differences	(49)2 assessment	(66)2 significance
(16)4 connectivity,	(33)3 impairment	(50)2 characteristics	(67)2 specialization
(17)4 foods	(34)3 improvement	(51)2 cognitive

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--- WordNet output for functional --- =>機能の, 関数の, 機能する, 機能上の, 実用的な, 機能的な Overview of adj functional The adj functional has 6 senses (first 2 from tagged texts) 1. (3) functional -- (designed for or capable of a particular function or use; "a style of writing in which every word is functional"; "functional architecture") 2. (1) functional -- (involving or affecting function rather than physiology; "functional deafness") 3. functional -- (relating to or based on function especially as opposed to structure; "the problem now is not a constitutional one; it is a functional one"; "delegates elected on a functional rather than a geographical basis") 4. functional, usable, useable, operable, operational -- (fit or ready for use or service; "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order") 5. functional -- (designed for or adapted to a function or use; "functional education selects knowledge that is concrete and usable rather than abstract and theoretical"; "functional architecture") 6. running, operative, functional, working -- ((of e.g. a machine) performing or capable of performing; "in running (or working) order"; "a functional set of brakes") --- WordNet end ---