Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception
Interoception, the monitoring of visceral signals, is often presumed to engage attentional mechanisms specifically devoted to inner bodily sensing. In fact, most standardized interoceptive tasks require directing attention to internal signals. However, most studies in the field have failed to com...
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| Autores principales: | , , , , , , , , , , , , , , , , , , , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://doi.org/10.3389/fnins.2017.00411 https://repositorio.utdt.edu/handle/20.500.13098/11064 |
| Aporte de: |
| id |
I57-R16320.500.13098-11064 |
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| record_format |
dspace |
| institution |
Universidad Torcuato Di Tella |
| institution_str |
I-57 |
| repository_str |
R-163 |
| collection |
Repositorio Digital Universidad Torcuato Di Tella |
| language |
Inglés |
| orig_language_str_mv |
eng |
| topic |
Función interoceptiva Exterocepción Neurología Interoception Exteroception Interoceptive learning Heart evoked potential Intracranial recordings |
| spellingShingle |
Función interoceptiva Exterocepción Neurología Interoception Exteroception Interoceptive learning Heart evoked potential Intracranial recordings García-Cordero, Indira Esteves, Sol Mikulan, Ezequiel P. Hesse, Eugenia Baglivo, Fabricio H. Silva, Walter García, María del Carmen Vaucheret, Esteban Ciraolo, Carlos García, Hernando S. Adolfi, Federico Pietto, Marcos Herrera, Eduar Legaz, Agustina Manes, Facundo García, Adolfo M. Sigman, Mariano Bekinschtein, Tristan A. Ibáñez, Agustín Sedeño, Lucas Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception |
| description |
Interoception, the monitoring of visceral signals, is often presumed to engage
attentional mechanisms specifically devoted to inner bodily sensing. In fact, most
standardized interoceptive tasks require directing attention to internal signals. However,
most studies in the field have failed to compare attentional modulations between
internally- and externally-driven processes, thus probing blind to the specificity of the
former. Here we address this issue through a multidimensional approach combining
behavioral measures, analyses of event-related potentials and functional connectivity
via high-density electroencephalography, and intracranial recordings. In Study 1, 50
healthy volunteers performed a heartbeat detection task as we recorded modulations
of the heartbeat-evoked potential (HEP) in three conditions: exteroception, basal
interoception (also termed interoceptive accuracy), and post-feedback interoception
(sometimes called interoceptive learning). In Study 2, to evaluate whether key
interoceptive areas (posterior insula, inferior frontal gyrus, amygdala, and somatosensory
cortex) were differentially modulated by externally- and internally-driven processes,
we analyzed human intracranial recordings with depth electrodes in these regions.
This unique technique provides a very fine grained spatio-temporal resolution
compared to other techniques, such as EEG or fMRI. We found that both
interoceptive conditions in Study 1 yielded greater HEP amplitudes than the
exteroceptive one. In addition, connectivity analysis showed that post-feedback
interoception, relative to basal interoception, involved enhanced long-distance
connections linking frontal and posterior regions. Moreover, results from Study 2 showed a differentiation between oscillations during basal interoception (broadband:
35–110 Hz) and exteroception (1–35 Hz) in the insula, the amygdala, the somatosensory
cortex, and the inferior frontal gyrus. In sum, this work provides convergent evidence for
the specificity and dynamics of attentional mechanisms involved in interoception. |
| format |
Artículo publishedVersion |
| author |
García-Cordero, Indira Esteves, Sol Mikulan, Ezequiel P. Hesse, Eugenia Baglivo, Fabricio H. Silva, Walter García, María del Carmen Vaucheret, Esteban Ciraolo, Carlos García, Hernando S. Adolfi, Federico Pietto, Marcos Herrera, Eduar Legaz, Agustina Manes, Facundo García, Adolfo M. Sigman, Mariano Bekinschtein, Tristan A. Ibáñez, Agustín Sedeño, Lucas |
| author_facet |
García-Cordero, Indira Esteves, Sol Mikulan, Ezequiel P. Hesse, Eugenia Baglivo, Fabricio H. Silva, Walter García, María del Carmen Vaucheret, Esteban Ciraolo, Carlos García, Hernando S. Adolfi, Federico Pietto, Marcos Herrera, Eduar Legaz, Agustina Manes, Facundo García, Adolfo M. Sigman, Mariano Bekinschtein, Tristan A. Ibáñez, Agustín Sedeño, Lucas |
| author_sort |
García-Cordero, Indira |
| title |
Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception |
| title_short |
Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception |
| title_full |
Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception |
| title_fullStr |
Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception |
| title_full_unstemmed |
Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception |
| title_sort |
attention, in and out : scalp-level and intracranial eeg correlates of interoception and exteroception |
| publishDate |
2018 |
| url |
https://doi.org/10.3389/fnins.2017.00411 https://repositorio.utdt.edu/handle/20.500.13098/11064 |
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