Amygdala and Subcortical Vision: Recognition of Threat and Fear
نویسندگان
چکیده
Kamen G. Usunoff1,2, Oliver Schmitt2, Nikolai E. Lazarov1, Dimitar E. Itzev3, Arndt Rolfs4, and Andreas Wree2 1Department of Anatomy and Histology, Medical University, Sofia, Bulgaria, 2Institute of Anatomy, University of Rostock, Rostock, Germany, 3Institute of Neurobiology, Bulgarian Academy of Sciences, Sofia, Bulgaria, and 4Albrecht-Kossel-Institute of Neuroregeneration, Centеr for Mental Health Disease, University of Rostock, Rostock, Germany
منابع مشابه
Amygdala responses to fearful and happy facial expressions under conditions of binocular suppression.
The human amygdala plays a crucial role in processing affective information conveyed by sensory stimuli. Facial expressions of fear and anger, which both signal potential threat to an observer, result in significant increases in amygdala activity, even when the faces are unattended or presented briefly and masked. It has been suggested that afferent signals from the retina travel to the amygdal...
متن کاملResponse to Visual Threat Following Damage to the Pulvinar
We present a unique case demonstrating contributions of the pulvinar in response to visual threat. Substantial evidence demonstrates that the amygdala contributes to the emotion of fear and the response to threat. Traditionally, two routes to amygdala activation have been distinguished: a "slow cortical" route through visual and association cortex and a "fast subcortical" route through the thal...
متن کاملDetecting fearful and neutral faces: BOLD latency differences in amygdala-hippocampal junction.
Evolutionary survival and procreation are augmented if an individual organism quickly detects environmental threats and rapidly initiates defensive behavioral reactions. Thus, facial emotions signaling a potential threat, e.g., fear or anger, should be perceived rapidly and automatically, possibly through a subcortical processing route which includes the amygdala. Using event-related functional...
متن کاملCortical functional connectivity decodes subconscious, task-irrelevant threat-related emotion processing
It is currently unclear to what extent cortical structures are required for and engaged during subconscious processing of biologically salient affective stimuli (i.e. the 'low-road' vs. 'many-roads' hypotheses). Here we show that cortical-cortical and cortical-subcortical functional connectivity (FC) contain substantially more information, relative to subcortical-subcortical FC (i.e. 'subcortic...
متن کاملA Rapid Subcortical Amygdala Route for Faces Irrespective of Spatial Frequency and Emotion.
There is significant controversy over the existence and function of a direct subcortical visual pathway to the amygdala. It is thought that this pathway rapidly transmits low spatial frequency information to the amygdala independently of the cortex, and yet the directionality of this function has never been determined. We used magnetoencephalography to measure neural activity while human partic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2010