The importance of cues signaling reward, threat or danger would suggest that they receive processing privileges in the neural systems underlying perception and attention. Previous research has documented enhanced processing of motivationally salient cues, and has pointed to the amygdala as a candidate neural structure underlying the enhancements. In the current study, we examined whether the amygdala was necessary for this emotional modulation of attention to occur. Patients with unilateral amygdala lesions and matched controls completed an emotional attentional blink task in which emotional distractors impair the perception of subsequent targets. Emotional images proved more distracting across all participant groups, including those with right or left amygdala lesions. These data argue against a central role for the amygdala in mediating all types of attentional capture by emotional stimuli.
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http://dx.doi.org/10.1016/j.neuropsychologia.2011.08.004 | DOI Listing |
Cogn Behav Neurol
January 2025
Department of Health Care, Mitsui Memorial Hospital, Tokyo, Japan.
Here we report the case of an individual who developed proper- and common-name anomia with no category specificity, alexia with agraphia for kanji (Japanese morphograms), and mild verbal and semantic memory impairment after unilateral herpes simplex encephalitis. Although their common-name anomia, alexia with agraphia, and semantic memory impairment resolved within 2 years, this individual continued to experience proper-name anomia and verbal memory impairment. Encephalitic damage was limited to the left anterior temporal lobe (ATL), amygdala, hippocampus, and parahippocampal gyrus, sparing the mid-fusiform and posterior inferior temporal gyri.
View Article and Find Full Text PDFActa Neurochir (Wien)
January 2025
Department of Neurosurgery, Maastricht University Medical Centre, Maastricht, Netherlands.
Purpose: In resective epilepsy surgery for drug-resistant focal epilepsy (DRE), good seizure outcome is strongly associated with visualization of an epileptogenic lesion on MRI. Standard clinical MRI (≤ 3 Tesla (T)) may fail to detect subtle lesions. 7T MRI enhances detection and delineation, the potential benefits of increasing field strength to 9.
View Article and Find Full Text PDFCell Rep
January 2025
Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10027, USA; Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY 10027, USA. Electronic address:
Outside acoustic communication, little is known about how animals coordinate social turn taking and how the brain drives engagement in these social interactions. Using Siamese fighting fish (Betta splendens), we discover dynamic visual features of an opponent and behavioral sequences that drive visually driven turn-taking aggressive behavior. Lesions of the telencephalon show that it is unnecessary for coordinating turn taking but is required for persistent participation in aggressive interactions.
View Article and Find Full Text PDFJ Neurosci Res
January 2025
Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada.
Curr Top Behav Neurosci
December 2024
Department of Psychology, University of California, Davis, CA, USA.
Children with extreme behavioral inhibition (BI) are at a significantly greater risk to develop anxiety disorders later in life. We and others have identified similar early-life temperamental BI in nonhuman primates (NHPs), including rhesus monkeys. NHP models of BI provide a unique opportunity to study the neurobiology of BI in a species that shares biological, developmental, and socioemotional similarities with humans.
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