Evidence map›Paper›PMID 25593294›Full record

ArticleLearning & memory (Cold Spring Harbor, N.Y.)2015

Hippocampus, perirhinal cortex, and complex visual discriminations in rats and humans.

Jena B Hales, Nicola J Broadbent, Priya D Velu, Larry R Squire, Robert E Clark

Open access · diamondAbstract read
In one paragraph

Article in Learning & memory (Cold Spring Harbor, N.Y.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 20 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jena B HalesDepartment of Psychiatry, University of California, San Diego, La Jolla, California 92093, USA Department of Neurosciences, University of California, San Diego, La Jolla, California 92093, USA.
Nicola J BroadbentDepartment of Psychiatry, University of California, San Diego, La Jolla, California 92093, USA.
Priya D VeluDepartment of Neurosciences, University of California, San Diego, La Jolla, California 92093, USA.
Larry R SquireDepartment of Psychiatry, University of California, San Diego, La Jolla, California 92093, USA Department of Psychology, University of California, San Diego, La Jolla, California 92093, USA Department of Neurosciences, University of California, San Diego, La Jolla, California 92093, USA Veterans Affairs San Diego Healthcare System, San Diego, California 92161, USA reclark@ucsd.edu lsquire@ucsd.edu.
Robert E ClarkDepartment of Psychiatry, University of California, San Diego, La Jolla, California 92093, USA Veterans Affairs San Diego Healthcare System, San Diego, California 92161, USA reclark@ucsd.edu lsquire@ucsd.edu.
University of California, San Diego · USVA San Diego Healthcare System · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007198 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHI, NEIL C, INSEL, PAUL A · 1985 to 2024
$29.3M
NIGMS NIH HHS T32 GM007198
6 · The paper itself

Abstract

Structures in the medial temporal lobe, including the hippocampus and perirhinal cortex, are known to be essential for the formation of long-term memory. Recent animal and human studies have investigated whether perirhinal cortex might also be important for visual perception. In our study, using a simultaneous oddity discrimination task, rats with perirhinal lesions were impaired and did not exhibit the normal preference for exploring the odd object. Notably, rats with hippocampal lesions exhibited the same impairment. Thus, the deficit is unlikely to illuminate functions attributed specifically to perirhinal cortex. Both lesion groups were able to acquire visual discriminations involving the same objects used in the oddity task. Patients with hippocampal damage or larger medial temporal lobe lesions were intact in a similar oddity task that allowed participants to explore objects quickly using eye movements. We suggest that humans were able to rely on an intact working memory capacity to perform this task, whereas rats (who moved slowly among the objects) needed to rely on long-term memory.

Indexed as

AgedAnimalsDiscrimination, PsychologicalFemaleHippocampusHumansMaleMemory, Long-TermMemory, Short-TermMiddle AgedRatsRats, Long-EvansTemporal LobeVisual Perception

Identifiers

PMID25593294
PMCPMC4341362
OpenAlexW2152173245

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.