Social cognition and the anterior temporal lobes: a review and theoretical framework
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TLDR
It is proposed that portions of the anterior temporal lobe (ATL) play a critical role in representing and retrieving social knowledge, which includes memory about people, their names and biographies and more abstract forms of social memory such as memory for traits and social concepts.Abstract:
Memory for people and their relationships, along with memory for social language and social behaviors, constitutes a specific type of semantic memory termed social knowledge. This review focuses on how and where social knowledge is represented in the brain. We propose that portions of the anterior temporal lobe (ATL) play a critical role in representing and retrieving social knowledge. This includes memory about people, their names and biographies and more abstract forms of social memory such as memory for traits and social concepts. This hypothesis is based on the convergence of several lines of research including anatomical findings, lesion evidence from both humans and non-human primates and neuroimaging evidence. Moreover, the ATL is closely interconnected with cortical nuclei of the amygdala and orbitofrontal cortex via the uncinate fasciculus. We propose that this pattern of connectivity underlies the function of the ATL in encoding and storing emotionally tagged knowledge that is used to guide orbitofrontal-based decision processes.read more
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The cortical organization of speech processing
Gregory Hickok,David Poeppel +1 more
TL;DR: A dual-stream model of speech processing is outlined that assumes that the ventral stream is largely bilaterally organized — although there are important computational differences between the left- and right-hemisphere systems — and that the dorsal stream is strongly left- Hemisphere dominant.
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Where Is the Semantic System? A Critical Review and Meta-Analysis of 120 Functional Neuroimaging Studies
TL;DR: In this article, the authors analyzed 120 functional neuroimaging studies focusing on semantic processing and identified reliable areas of activation in these studies using the activation likelihood estimate (ALE) technique, which formed a distinct, left-lateralized network comprised of 7 regions: posterior inferior parietal lobe, middle temporal gyrus, fusiform and parahippocampal gyri, dorsomedial prefrontal cortex, inferior frontal gyrus and posterior cingulate gyrus.
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Where do you know what you know? The representation of semantic knowledge in the human brain.
TL;DR: A patient with semantic dementia — a neurodegenerative disease that is characterized by the gradual deterioration of semantic memory — was being driven through the countryside to visit a friend and was able to remind his wife where to turn along the not-recently-travelled route.