The DREAM database

Overview
The Dream EEG and Mentation (DREAM) database collects and stores metadata about DREAM datasets, and is accessible to the public. DREAM datasets provide polysomnography and associated subjective mentation reports. Some datasets may also contain personally identifiable information about participants, but such information are not stored by the DREAM database.
Datasets are contributed to DREAM from many different labs in many different studies and, where possible, made openly accessible in the hope of pushing the fields of sleep, dream, brain-computer interface, and consciousness research forward. If you have data that others in the community might find useful, please consider contributing it to DREAM.
Contents
The DREAM database consists of a following data tables:

Datasets
Data records
People

The records in <em>Datasets</em> list all officially accepted DREAM datasets and their summary metadata. <em>Data records</em> lists metadata of each individual datum from these datasets. <em>People</em> provides information on the data contributors, referred to by <em>Key ID</em> in <em>Datasets</em>.

### 数据集概览
梦境脑电图与心理活动报告（Dream EEG and Mentation, DREAM）数据库收集并存储DREAM数据集的元数据，且面向公众开放访问。DREAM数据集提供多导睡眠图（polysomnography）及相关的主观心理活动报告。部分数据集可能包含研究参与者的个人身份信息，但此类信息不会存储于DREAM数据库中。

DREAM数据集由来自多个不同研究项目的众多实验室共同贡献，在条件允许的情况下均以开放获取的形式发布，以期推动睡眠、梦境、脑机接口以及意识研究领域的发展。若您拥有本领域同仁可能会用到的数据集，欢迎向DREAM数据库贡献相关数据。

### 数据集内容
DREAM数据库包含以下数据表：
数据集表（Datasets）
数据记录表（Data records）
贡献者信息表（People）

数据集表收录了所有正式纳入的DREAM数据集及其汇总元数据；数据记录表列出了上述数据集中每一条原始数据的元数据；贡献者信息表提供了数据贡献者的相关信息，该类信息通过数据集表中的"关键字ID（Key ID）"进行关联。