Evidence map›Paper›PMID 22733663›Full record

ArticleThe Journal of physiology2012

Sub- and suprathreshold adaptation currents have opposite effects on frequency tuning.

Tara Deemyad, Jens Kroeger, Maurice J Chacron

Abstract read
In one paragraph

Article in The Journal of physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Activation of GABAJournal of neurophysiology · 2020
    Article
  4. Article
  5. Review
  6. Optimized Parallel Coding of Second-Order Stimulus Features by Heterogeneous Neural Populations.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. 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.

Tara DeemyadDepartment of Physiology, McGill University, 3655 Sir William Osler, room 1137, Montreal, QC, H3G 1Y6, Canada.
Jens Kroeger
Maurice J Chacron

Funding

CIHR 82838-1CIHR 83338-1CIHR 83338-2
6 · The paper itself

Abstract

Natural stimuli are often characterized by statistics that can vary over orders of magnitude. Experiments have shown that sensory neurons continuously adapt their responses to changes in these statistics, thereby optimizing information transmission. However, such adaptation can also alter the neuronal transfer function by attenuating if not eliminating responses to the low frequency components of time varying stimuli,which can create ambiguity in the neural code. We recorded from electrosensory pyramidal neurons before and after pharmacological inactivation of either calcium-activated (I(AHP)) or KCNQ voltage-gated potassium currents (I(M)). We found that blocking each current decreased adaptation in a similar fashion but led to opposite changes in the neuronal transfer function. Indeed, blocking I(AHP) increased while blocking I(M) instead decreased the response to low temporal frequencies. To understand this surprising result, we built a mathematical model incorporating each channel type. This model predicted that these differential effects could be accounted for by differential activation properties. Our results show that the mechanisms that mediate adaptation can either increase or decrease the response to low frequency stimuli. As such, they suggest that the nervous system resolves ambiguity resulting from adaptation through independent control of adaptation and the neuronal transfer function.

Indexed as

Models, NeurologicalAdaptation, PhysiologicalAlkanesAnimalsAnthracenesFemaleFishesIn Vitro TechniquesKCNQ Potassium ChannelsMalePotassium Channel BlockersPotassium Channels, Calcium-ActivatedPyramidal CellsQuinolinium Compounds10,10-bis(4-pyridinylmethyl)-9(10H)-anthracenone6,10-diaza-3(1,3),8(1,4)dibenzena-1,5(1,4)diquinolinacyclodecaphaneAlkanesAnthracenesKCNQ Potassium ChannelsPotassium Channel BlockersPotassium Channels, Calcium-ActivatedQuinolinium Compounds

Identifiers

PMID22733663
PMCPMC3487040

What OpenQuestion holds

Textmetadata
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.