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>.

概述
梦境脑电图与心理活动（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）及配套的主观心理活动报告。部分数据集可能包含受试者的个人身份识别信息，但此类信息不会被DREAM数据库存储。

DREAM数据集由来自多项不同研究的诸多实验室共同贡献，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（brain-computer interface）以及意识研究领域的发展。若您拥有本领域同行可能会用到的数据集，欢迎向DREAM数据库提交贡献。

内容
DREAM数据库包含以下三类数据表：
- 数据集（Datasets）
- 数据记录（Data records）
- 贡献者信息（People）

其中，<em>数据集</em>表收录所有官方认可的DREAM数据集及其汇总元数据；<em>数据记录</em>表列出各数据集内单条数据的元数据；<em>贡献者信息</em>表提供数据贡献者的相关信息，此类信息通过<em>数据集</em>表中的<em>关键ID（Key ID）</em>进行关联指代。