ArticleHuman brain mapping2022
Effects of left and right medial temporal lobe resections on hemodynamic correlates of negative and neutral scene processing.
Article in Human brain mapping, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Neural correlates of emotion processing and regulation dissociate frontal and temporal lobe epilepsy.Brain communications · 2026Article
- Longitudinal magnetic resonance imaging reveals differences in cortical expansion in fetuses with congenital heart defects.Cerebral cortex (New York, N.Y. : 1991) · 2025Article
- Fear perception as a function of hemisphere- and time-specific dynamics in the medial temporal lobes.Communications biology · 2025Article
- Temporal Lobectomy Evidence for the Role of the Amygdala in Early Emotional Face and Body Processing.eNeuro · 2025Article
- Effects of left and right medial temporal lobe resections on hemodynamic correlates of negative and neutral scene processing.Human brain mapping · 2022Article
- Right medial temporal lobe structures particularly impact early stages of affective picture processing.Human brain mapping · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Enhanced visual cortex activation by negative compared to neutral stimuli is often attributed to modulating feedback from the amygdala, but evidence from lesion studies is scarce, particularly regarding differential effects of left and right amygdala lesions. Therefore, we compared visual cortex activation by negative and neutral complex scenes in an event-related fMRI study between 40 patients with unilateral temporal lobe resection (TLR; 19 left [lTLR], 21 right [rTLR]), including the amygdala, and 20 healthy controls. We found preserved hemodynamic emotion modulation of visual cortex in rTLR patients and only subtle reductions in lTLR patients. In contrast, rTLR patients showed a significant decrease in visual cortex activation irrespective of picture content. In line with this, healthy controls showed small emotional modulation of the left amygdala only, while their right amygdala was activated equally by negative and neutral pictures. Correlations of activation in amygdala and visual cortex were observed for both negative and neutral pictures in the controls. In both patient groups, this relationship was attenuated ipsilateral to the TLR. Our results support the notion of reentrant mechanisms between amygdala and visual cortex and suggest laterality differences in their emotion-specificity. While right medial temporal lobe structures including the amygdala seem to influence visual processing in general, the left medial temporal lobe appears to contribute specifically to emotion processing. Still, effects of left TLR on visual emotion processing were relatively subtle. Therefore, hemodynamic correlates of visual emotion processing are likely supported by a distributed cerebral network, challenging an amygdalocentric view of emotion processing.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.