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Table 1 Event categories

From: An event based topic learning pipeline for neuroimaging literature mining

Topic event

Meta-event

Definition

1. Cognitive response

Activate

The “activate” event happens when the execution of a cognitive task brings about active states in some specific brain regions

Deactivate

The “deactivate” event happens when the execution of a cognitive task brings about inactive states in some specific brain regions

Affect

The “affect” event happens when the execution of a cognitive task brings about state changes in some specific brain regions, but whether it is activated or inactivated is unknown

Co-occur

The “co-occur” event happens when one of the following situations occurs: (1) two brain regions or networks are activated at the same time. (2) Two cognitive tasks are performed at the same time

Include

The “include” event happens when one of the following situations occurs: (1) an activated brain regions or networks contains another one. (2) A performed cognitive task contains another one

2. Experiment

Design cognitive task

The “design cognitive task” event happens when researchers create a group of cognitive tasks by using design softwares or tools

Perform cognitive task

The “perform cognitive task” event happens when a subject does a group of experiment tasks during the brain cognitive research

Acquire data

The “acquire data” event happens when a neuroimaging device records a subject’s physiological and psychological signals during he/she performs cognitive tasks

3. Analysis

Analyze data

The “analyze data” event happens when a researcher adopts some tools or methods to mine neuroimaging data

Deduce result

The “deduce result” event happens when researchers give a conclusion