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Anatomical organization of the human hippocampal system
Lecture
Sunday, January 5, 2025
Hour: 11:00 - 12:30
Location:
Anatomical organization of the human hippocampal system
Dr. Daniel Reznik
<p>Animal tract-tracing studies provided critical insights into the organizational principles of the hippocampal system, thus defining the anatomical constraints within which animal mnemonic functions operate. However, no clear framework defining the anatomical organization of the human hippocampal system exists. This gap in knowledge originates in notoriously low MRI data quality in the human medial temporal lobe (MTL) and in group-level blurring of idiosyncratic anatomy between adjacent brain regions comprising the MTL. In this talk, I will present our recent data, which overcame these longstanding challenges and allowed us to explore in detail the cortical networks associated with the human MTL, and to examine the intrinsic organization of the hippocampal-entorhinal system with unprecedented anatomical precision. Our results point to biologically meaningful and previously unknown organizational principles of the human hippocampal system. These findings facilitate the study of the evolutionary trajectory of the hippocampal connectivity and function across species, and prompt a reformulation of the neuroanatomical basis of episodic memory.</p>
event
All events, event
Anatomical organization of the human hippocampal system
Lecture
Sunday, January 5, 2025
Hour: 11:00 - 12:30
Location:
Anatomical organization of the human hippocampal system
Dr. Daniel Reznik
<p>Animal tract-tracing studies provided critical insights into the organizational principles of the hippocampal system, thus defining the anatomical constraints within which animal mnemonic functions operate. However, no clear framework defining the anatomical organization of the human hippocampal system exists. This gap in knowledge originates in notoriously low MRI data quality in the human medial temporal lobe (MTL) and in group-level blurring of idiosyncratic anatomy between adjacent brain regions comprising the MTL. In this talk, I will present our recent data, which overcame these longstanding challenges and allowed us to explore in detail the cortical networks associated with the human MTL, and to examine the intrinsic organization of the hippocampal-entorhinal system with unprecedented anatomical precision. Our results point to biologically meaningful and previously unknown organizational principles of the human hippocampal system. These findings facilitate the study of the evolutionary trajectory of the hippocampal connectivity and function across species, and prompt a reformulation of the neuroanatomical basis of episodic memory.</p>
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