Matches in SemOpenAlex for { <https://semopenalex.org/work/W2754001786> ?p ?o ?g. }
- W2754001786 endingPage "10153" @default.
- W2754001786 startingPage "10139" @default.
- W2754001786 abstract "Prior studies have reported “local” field potential (LFP) responses to faces in the macaque auditory cortex and have suggested that such face-LFPs may be substrates of audiovisual integration. However, although field potentials (FPs) may reflect the synaptic currents of neurons near the recording electrode, due to the use of a distant reference electrode, they often reflect those of synaptic activity occurring in distant sites as well. Thus, FP recordings within a given brain region (e.g., auditory cortex) may be “contaminated” by activity generated elsewhere in the brain. To determine whether face responses are indeed generated within macaque auditory cortex, we recorded FPs and concomitant multiunit activity with linear array multielectrodes across auditory cortex in three macaques (one female), and applied current source density (CSD) analysis to the laminar FP profile. CSD analysis revealed no appreciable local generator contribution to the visual FP in auditory cortex, although we did note an increase in the amplitude of visual FP with cortical depth, suggesting that their generators are located below auditory cortex. In the underlying inferotemporal cortex, we found polarity inversions of the main visual FP components accompanied by robust CSD responses and large-amplitude multiunit activity. These results indicate that face-evoked FP responses in auditory cortex are not generated locally but are volume-conducted from other face-responsive regions. In broader terms, our results underscore the caution that, unless far-field contamination is removed, LFPs in general may reflect such “far-field” activity, in addition to, or in absence of, local synaptic responses. SIGNIFICANCE STATEMENT Field potentials (FPs) can index neuronal population activity that is not evident in action potentials. However, due to volume conduction, FPs may reflect activity in distant neurons superimposed upon that of neurons close to the recording electrode. This is problematic as the default assumption is that FPs originate from local activity, and thus are termed “local” (LFP). We examine this general problem in the context of previously reported face-evoked FPs in macaque auditory cortex. Our findings suggest that face-FPs are indeed generated in the underlying inferotemporal cortex and volume-conducted to the auditory cortex. The note of caution raised by these findings is of particular importance for studies that seek to assign FP/LFP recordings to specific cortical layers." @default.
- W2754001786 created "2017-09-25" @default.
- W2754001786 creator A5007095181 @default.
- W2754001786 creator A5033638114 @default.
- W2754001786 creator A5091697939 @default.
- W2754001786 date "2017-09-18" @default.
- W2754001786 modified "2023-09-27" @default.
- W2754001786 title "Primary Generators of Visually Evoked Field Potentials Recorded in the Macaque Auditory Cortex" @default.
- W2754001786 cites W1526492552 @default.
- W2754001786 cites W1543408767 @default.
- W2754001786 cites W158060719 @default.
- W2754001786 cites W162615862 @default.
- W2754001786 cites W1659118978 @default.
- W2754001786 cites W1953174039 @default.
- W2754001786 cites W1972599998 @default.
- W2754001786 cites W1973275441 @default.
- W2754001786 cites W1981165045 @default.
- W2754001786 cites W1987164297 @default.
- W2754001786 cites W1988061592 @default.
- W2754001786 cites W1989700973 @default.
- W2754001786 cites W1991359225 @default.
- W2754001786 cites W2011166716 @default.
- W2754001786 cites W2013186737 @default.
- W2754001786 cites W2014851455 @default.
- W2754001786 cites W2015656145 @default.
- W2754001786 cites W2015766879 @default.
- W2754001786 cites W2016397401 @default.
- W2754001786 cites W2030092281 @default.
- W2754001786 cites W2031568854 @default.
- W2754001786 cites W2033187606 @default.
- W2754001786 cites W2038032054 @default.
- W2754001786 cites W2038955527 @default.
- W2754001786 cites W2049297069 @default.
- W2754001786 cites W2052305967 @default.
- W2754001786 cites W2054393916 @default.
- W2754001786 cites W2062552196 @default.
- W2754001786 cites W2064996746 @default.
- W2754001786 cites W2067702957 @default.
- W2754001786 cites W2068704019 @default.
- W2754001786 cites W2073227393 @default.
- W2754001786 cites W2074166433 @default.
- W2754001786 cites W2089791515 @default.
- W2754001786 cites W2090256585 @default.
- W2754001786 cites W2096667476 @default.
- W2754001786 cites W2097727568 @default.
- W2754001786 cites W2101193127 @default.
- W2754001786 cites W2101790553 @default.
- W2754001786 cites W2104264595 @default.
- W2754001786 cites W2104440770 @default.
- W2754001786 cites W2105564023 @default.
- W2754001786 cites W2111720794 @default.
- W2754001786 cites W2117090183 @default.
- W2754001786 cites W2119106899 @default.
- W2754001786 cites W2122354249 @default.
- W2754001786 cites W2125240230 @default.
- W2754001786 cites W2129409783 @default.
- W2754001786 cites W2130485582 @default.
- W2754001786 cites W2135214347 @default.
- W2754001786 cites W2139314678 @default.
- W2754001786 cites W2143036605 @default.
- W2754001786 cites W2143051737 @default.
- W2754001786 cites W2147490847 @default.
- W2754001786 cites W2160637052 @default.
- W2754001786 cites W2161491024 @default.
- W2754001786 cites W2163368141 @default.
- W2754001786 cites W2166567401 @default.
- W2754001786 cites W2171582456 @default.
- W2754001786 cites W21769058 @default.
- W2754001786 cites W2180627541 @default.
- W2754001786 cites W2272360941 @default.
- W2754001786 cites W2317443075 @default.
- W2754001786 cites W2396275271 @default.
- W2754001786 cites W2520471892 @default.
- W2754001786 cites W2568921893 @default.
- W2754001786 cites W4239978549 @default.
- W2754001786 cites W4250543537 @default.
- W2754001786 doi "https://doi.org/10.1523/jneurosci.3800-16.2017" @default.
- W2754001786 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5647771" @default.
- W2754001786 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/28924008" @default.
- W2754001786 hasPublicationYear "2017" @default.
- W2754001786 type Work @default.
- W2754001786 sameAs 2754001786 @default.
- W2754001786 citedByCount "16" @default.
- W2754001786 countsByYear W27540017862015 @default.
- W2754001786 countsByYear W27540017862018 @default.
- W2754001786 countsByYear W27540017862019 @default.
- W2754001786 countsByYear W27540017862020 @default.
- W2754001786 countsByYear W27540017862021 @default.
- W2754001786 countsByYear W27540017862022 @default.
- W2754001786 countsByYear W27540017862023 @default.
- W2754001786 crossrefType "journal-article" @default.
- W2754001786 hasAuthorship W2754001786A5007095181 @default.
- W2754001786 hasAuthorship W2754001786A5033638114 @default.
- W2754001786 hasAuthorship W2754001786A5091697939 @default.
- W2754001786 hasBestOaLocation W27540017861 @default.
- W2754001786 hasConcept C117838684 @default.
- W2754001786 hasConcept C15744967 @default.
- W2754001786 hasConcept C169760540 @default.