Evidence map›Paper›PMID 25113022›Full record

ArticleHippocampus2015

A simple biophysically plausible model for long time constants in single neurons.

Zoran Tiganj, Michael E Hasselmo, Marc W Howard

Open access · greenAbstract read
In one paragraph

Article in Hippocampus, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.2field-weighted citation impact, top 13% of its field
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

31 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Ramping cells in the rodent medial prefrontal cortex encode time to past and future events via real Laplace transform.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Modeling Time Cell Neuron-Level Dynamics.Computational brain & behavior · 2024
    Article
  8. Neurocomputational Models of Interval Timing: Seeing the Forest for the Trees.Advances in experimental medicine and biology · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. A temporal record of the past with a spectrum of time constants in the monkey entorhinal cortex.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Evidence accumulation in a Laplace domain decision space.Computational brain & behavior · 2018
    Article
  19. Review
  20. Article
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

3 authors at 2 institutions in 1 country.

Zoran TiganjDepartment of Psychological and Brain Sciences, Center for Memory and Brain, Boston University, Boston, Massachusetts.
Michael E Hasselmo
Marc W Howard
Boston University · USCenter for Pain and the Brain · US

Funding

Prefrontal and Medial-Temporal Interactions in MemoryP50MH094263 · NIMH · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI MILLER, EARL K · 2011 to 2015
$8.7M
Mechanisms of Entorhinal Cortex FunctionR01MH061492 · NIMH · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI HASSELMO, MICHAEL E · 2000 to 2017
$5.0M
NIMH NIH HHS P50 MH094263NIMH NIH HHS R01 MH061492NIMH NIH HHS R01 MH61492
6 · The paper itself

Abstract

Recent work in computational neuroscience and cognitive psychology suggests that a set of cells that decay exponentially could be used to support memory for the time at which events took place. Analytically and through simulations on a biophysical model of an individual neuron, we demonstrate that exponentially decaying firing with a range of time constants up to minutes could be implemented using a simple combination of well-known neural mechanisms. In particular, we consider firing supported by calcium-controlled cation current. When the amount of calcium leaving the cell during an interspike interval is larger than the calcium influx during a spike, the overall decay in calcium concentration can be exponential, resulting in exponential decay of the firing rate. The time constant of the decay can be several orders of magnitude larger than the time constant of calcium clearance, and it could be controlled externally via a variety of biologically plausible ways. The ability to flexibly and rapidly control time constants could enable working memory of temporal history to be generalized to other variables in computing spatial and ordinal representations.

Indexed as

Biophysical PhenomenaCalciumComputer SimulationElectrophysiological PhenomenaMemory, Short-TermModels, NeurologicalNeuronsCalciumcalcium-sensitive nonselective cation currentcholinergic modulationexponentially decaying firingpersistent firingworking memory

Identifiers

PMID25113022
PMCPMC4437581
OpenAlexW1615091949

What OpenQuestion holds

Textmetadata
LicenceTDM
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.