# Neuroscience of Layers 2/3

**URL:** <https://discourse.numenta.org/t/neuroscience-of-layers-2-3/1588>\
**Category:** General Neuroscience\
**Tags:** temporal-pooling\
**Created:** [November 13, 2016, 2:45pm UTC](https://discourse.numenta.org/t/neuroscience-of-layers-2-3/1588 "2016-11-13T14:45:14Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![sebjwallace](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.numenta.org/sebjwallace/32/6411_2.png) [@sebjwallace](https://discourse.numenta.org/u/sebjwallace)\
**Post date:** [November 13, 2016, 2:45pm UTC](https://discourse.numenta.org/t/neuroscience-of-layers-2-3/1588/1 "2016-11-13T14:45:14Z")

</div>

I understand HTM research is being done on layers 2/3. So far it looks like 2/3 is responsible for temporal pooling from the inputs of layer 4.

I want to research more about this, but it’s difficult to find anything through Google that gives any decent clues. I was hoping knowledge and resources could be shared here for anyone curious about layers 2/3 or temporal pooling.

If you have anything to share on this topic I’d much appreciate it!

_I just realized this is very similar to [this post](https://discourse.numenta.org/t/neuroscience-behind-temporal-pooling/1576/6), however I think I’m asking something more broad._

---

<div class="post-metadata">

**Author:** ![rhyolight](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.numenta.org/rhyolight/32/3922_2.png) [@rhyolight](https://discourse.numenta.org/u/rhyolight)\
**Post date:** [November 14, 2016, 9:13pm UTC](https://discourse.numenta.org/t/neuroscience-of-layers-2-3/1588/2 "2016-11-14T21:13:23Z")

</div>

I believe this would be the #1 resource to read on this:

> [@Why Neurons Have Thousands Of Synapses, A Theory Of Sequence Memory In Neocortex](https://discourse.numenta.org/t/why-neurons-have-thousands-of-synapses-a-theory-of-sequence-memory-in-neocortex/572):
>
> [[image]](https://numenta.com/neuroscience-research/research-publications/papers/why-neurons-have-thousands-of-synapses-theory-of-sequence-memory-in-neocortex/) By @jhawkins and @subutai Available [here](https://numenta.com/neuroscience-research/research-publications/papers/why-neurons-have-thousands-of-synapses-theory-of-sequence-memory-in-neocortex/). Please discuss this paper below.

Also, there is an [outdated whitepaper](http://numenta.org/resources/HTM_CorticalLearningAlgorithms.pdf) (PDF) that explains the basics, but some of the algorithms are deprecated (temporal pooling in favor of temporal memory).

Numenta lists all their papers (in the order we prefer them to be read) [on our website](http://numenta.com/papers/).