Subcortical amygdala pathways enable rapid face processing
Human faces may signal relevant information and are therefore analysed rapidly and effectively by the brain. However, the precise mechanisms and pathways involved in rapid face processing are unclear. One view posits a role for a subcortical connection between early visual sensory regions and the am...
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| Veröffentlicht in: | NeuroImage (Orlando, Fla.) Fla.), 2014-11, Vol.102, p.309-316 |
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| description | Human faces may signal relevant information and are therefore analysed rapidly and effectively by the brain. However, the precise mechanisms and pathways involved in rapid face processing are unclear. One view posits a role for a subcortical connection between early visual sensory regions and the amygdala, while an alternative account emphasises cortical mediation. To adjudicate between these functional architectures, we recorded magnetoencephalographic (MEG) evoked fields in human subjects to presentation of faces with varying emotional valence. Early brain activity was better explained by dynamic causal models containing a direct subcortical connection to the amygdala irrespective of emotional modulation. At longer latencies, models without a subcortical connection had comparable evidence. Hence, our results support the hypothesis that a subcortical pathway to the amygdala plays a role in rapid sensory processing of faces, in particular during early stimulus processing. This finding contributes to an understanding of the amygdala as a behavioural relevance detector.
•Face processing involves a functional subcortical route to amygdala.•Subcortical visual pathway to amygdala is crucial during early visual processing.•Visual processing of late time‐periods can also be explained by cortical connectivity. |
| doi_str_mv | 10.1016/j.neuroimage.2014.07.047 |
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•Face processing involves a functional subcortical route to amygdala.•Subcortical visual pathway to amygdala is crucial during early visual processing.•Visual processing of late time‐periods can also be explained by cortical connectivity.</description><subject>Adult</subject><subject>Affect - physiology</subject><subject>Amygdala</subject><subject>Amygdala - physiology</subject><subject>Biological and medical sciences</subject><subject>Brain</subject><subject>Connectivity</subject><subject>Dynamic causal modelling</subject><subject>Evoked Potentials, Visual</subject><subject>Face</subject><subject>Facial Expression</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>Geniculate Bodies - physiology</topic><topic>Humans</topic><topic>Hypotheses</topic><topic>Magnetoencephalography</topic><topic>Male</topic><topic>MEG</topic><topic>Neural Pathways - physiology</topic><topic>Pulvinar - physiology</topic><topic>Sensors</topic><topic>Studies</topic><topic>Subcortical processing</topic><topic>Vertebrates: nervous system and sense organs</topic><topic>Visual Cortex - physiology</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Garvert, Mona M.</creatorcontrib><creatorcontrib>Friston, Karl J.</creatorcontrib><creatorcontrib>Dolan, Raymond J.</creatorcontrib><creatorcontrib>Garrido, Marta I.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Neurosciences Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Psychology Database (Alumni)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>ProQuest Psychology</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest One Psychology</collection><collection>ProQuest Central Basic</collection><collection>Genetics Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>NeuroImage (Orlando, Fla.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Garvert, Mona M.</au><au>Friston, Karl J.</au><au>Dolan, Raymond J.</au><au>Garrido, Marta I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Subcortical amygdala pathways enable rapid face processing</atitle><jtitle>NeuroImage (Orlando, Fla.)</jtitle><addtitle>Neuroimage</addtitle><date>2014-11-15</date><risdate>2014</risdate><volume>102</volume><spage>309</spage><epage>316</epage><pages>309-316</pages><issn>1053-8119</issn><eissn>1095-9572</eissn><abstract>Human faces may signal relevant information and are therefore analysed rapidly and effectively by the brain. However, the precise mechanisms and pathways involved in rapid face processing are unclear. One view posits a role for a subcortical connection between early visual sensory regions and the amygdala, while an alternative account emphasises cortical mediation. To adjudicate between these functional architectures, we recorded magnetoencephalographic (MEG) evoked fields in human subjects to presentation of faces with varying emotional valence. Early brain activity was better explained by dynamic causal models containing a direct subcortical connection to the amygdala irrespective of emotional modulation. At longer latencies, models without a subcortical connection had comparable evidence. Hence, our results support the hypothesis that a subcortical pathway to the amygdala plays a role in rapid sensory processing of faces, in particular during early stimulus processing. This finding contributes to an understanding of the amygdala as a behavioural relevance detector.
•Face processing involves a functional subcortical route to amygdala.•Subcortical visual pathway to amygdala is crucial during early visual processing.•Visual processing of late time‐periods can also be explained by cortical connectivity.</abstract><cop>Amsterdam</cop><pub>Elsevier Inc</pub><pmid>25108179</pmid><doi>10.1016/j.neuroimage.2014.07.047</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-0679-4959</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Adult Affect - physiology Amygdala Amygdala - physiology Biological and medical sciences Brain Connectivity Dynamic causal modelling Evoked Potentials, Visual Face Facial Expression Female Fundamental and applied biological sciences. Psychology Geniculate Bodies - physiology Humans Hypotheses Magnetoencephalography Male MEG Neural Pathways - physiology Pulvinar - physiology Sensors Studies Subcortical processing Vertebrates: nervous system and sense organs Visual Cortex - physiology Young Adult |
| title | Subcortical amygdala pathways enable rapid face processing |
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