scholarly journals Close but no cigar: Spatial precision deficits following medial temporal lobe lesions provide novel insight into theoretical models of navigation and memory

Hippocampus ◽  
2017 ◽  
Vol 28 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Branden S. Kolarik ◽  
Trevor Baer ◽  
Kiarash Shahlaie ◽  
Andrew P. Yonelinas ◽  
Arne D. Ekstrom
Keyword(s):  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Theoretical Models ◽  
Temporal Lobe Lesions ◽  
Insight Into

scholarly journals Losing sight of the future: Impaired semantic prospection following medial temporal lobe lesions

Hippocampus ◽  
2012 ◽  
Vol 23 (4) ◽  
pp. 268-277 ◽  
Author(s):  
Elizabeth Race ◽  
Margaret M. Keane ◽  
Mieke Verfaellie
Keyword(s):  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
The Future ◽  
Temporal Lobe Lesions

Double dissociation of memory capacities after bilateral occipital-lobe or medial temporal-lobe lesions

Brain ◽  
1995 ◽  
Vol 118 (5) ◽  
pp. 1129-1148 ◽  
Author(s):  
Margaret M. Keane ◽  
John D. E. Gabrieli ◽  
Heather C. Mapstone ◽  
Keith A. Johnson ◽  
Suzanne Corkin
Keyword(s):  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Occipital Lobe ◽  
Double Dissociation ◽  
Temporal Lobe Lesions

Perceptual-Motor Learning in Amnesic Patients with Medial Temporal Lobe Lesions

1993 ◽  
Vol 77 (3_suppl) ◽  
pp. 1311-1314 ◽  
Author(s):  
Hikari Yamashita
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Temporal Lobe ◽  
Retention Test ◽  
Medial Temporal Lobe ◽  
Acquisition Training ◽  
Resonance Imaging ◽  
Rotary Pursuit ◽  
Temporal Lobe Lesions ◽  
Perceptual Motor Learning

Three patients amnesic due to encephalitis and six normal control subjects performed a 45-rpm rotary pursuit task. Bilateral damage of the medial temporal lobe was confirmed by magnetic resonance imaging for all three patients. All amnesic patients acquired the skill, although actual time on target differed across individuals. On the retention test, after a seven-day interval, amnesic patients showed complete retention of the skill without acknowledgment of the acquisition training.

Fornix and medial temporal lobe lesions lead to comparable deficits in complex visual perception

2016 ◽  
Vol 620 ◽  
pp. 27-32 ◽  
Author(s):  
Robert K. Lech ◽  
Benno Koch ◽  
Michael Schwarz ◽  
Boris Suchan
Keyword(s):  
Visual Perception ◽  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Temporal Lobe Lesions

scholarly journals Spared Perception of the Structure of Scenes after Hippocampal Damage

2019 ◽  
Vol 31 (8) ◽  
pp. 1260-1269
Author(s):  
Zhisen J. Urgolites ◽  
Ramona O. Hopkins ◽  
Larry R. Squire
Keyword(s):  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Memory Impairment ◽  
Hippocampal Damage ◽  
Spatial Tasks ◽  
Structural Coherence ◽  
Temporal Lobe Lesions

To explore whether the hippocampus might be important for certain spatial operations in addition to its well-known role in memory, we administered two tasks in which participants judged whether objects embedded in scenes or whether scenes themselves could exist in 3-D space. Patients with damage limited to the hippocampus performed as well as controls in both tasks. A patient with large medial-temporal lobe lesions had a bias to judge objects in scenes and scenes themselves as possible, performing well with possible stimuli but poorly with impossible stimuli in both tasks. All patients were markedly impaired at remembering the tasks. The hippocampus appears not to be essential for judging the structural coherence of objects in scenes or the coherence of scenes. The findings conform to what is now a sizeable literature emphasizing the importance of the hippocampus for memory. We discuss our results in light of findings that other patients have sometimes been reported to be disadvantaged by spatial tasks like the ones studied here, despite less hippocampal damage and milder memory impairment.

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