# Searching

The interactive viewer fetches datasets semantically linked to [selected regions](selecting.md#selecting-deselecting-regions). If no regions are selected, all datasets associated with a parcellation will be returned.

[![](images/bigbrain_search_interface.png)](images/bigbrain_search_interface.png)

## Opening / Closing the search interface

The search interface can be opened by either:

- [selecting any region](selecting.md#selecting-deselecting-regions)
- manually, `click` on `Explore`

[![](images/bigbrain_explore_the_current_view.png)](images/bigbrain_explore_the_current_view.png)

The search interface can be closed by clicking the `Collapse` button
[![](images/bigbrain_collapse_search.png)](images/bigbrain_collapse_search.png)

## Browsing dataset

`click` on any dataset entry to display a detailed view.

[![](images/bigbrain_click_dataset.png)](images/bigbrain_click_dataset.png)

[![](images/area_te10_detail.png)](images/area_te10_detail.png)

## Filtering search results

You can filter the search result by `click`ing the banner `Related Datasets`. This reveals the filter options. Select/Deselect options to apply the filter.

[![](images/bigbrain_search_filter.png)](images/bigbrain_search_filter.png)

[![](images/bigbrain_search_filter_expanded.png)](images/bigbrain_search_filter_expanded.png)

!!! warning
    Selecting no filter option is not the same as selecting all filter options. 
    
    There may be datasets without any _methods_ curated. These datasets will be shown if no filter is applied (i.e. deselecting all options), but will not show up if all options are selected.

To reset all filters, `click` the `filter icon`

[![](images/bigbrain_search_filter_reset.png)](images/bigbrain_search_filter_reset.png)