Table 2.

Full-based dictionary

No	Category	Key words within the category
1	Brain functions	Brain, neural, network, recognition, SNN, model, arousal, valence, emotional, amplitude, stress, left, hemisphere, beta, alpha, theta, gamma, band, waves, Hz
2	Ethic aspects	Ethical, ethics, practices, companies, code
3	Health applications	Disorders, mental, psychiatric, DSM, clinical, trials, psychiatry, health, public, patients, dopamine, stress, psychologic
4	Business applications	Industrial, management, business, economic, political, cultural, neuroeconomics
5	Marketing applications	Marketing, consumer, social, purchase, customer, service, aesthetic
6	Advertising	Ad, exposure, brand, product, advertising, effectiveness, television, media, preference, commercials, TV, recall, celebrities, spokesperson
7	Product categories	Product, harm, WOM, destination, image, pictures
8	Neuromarketing	Consumer, neuroscience, behaviour, emotions, positive, negative
9	Electroencephalogram (EEG)	EEG, signal, electrodes, electrode
10	Facial expressions	Facial, expression, recognition
11	Functional magnetic resonance imaging (fMRI)	Imaging, fMRI, individuals
12	Eye techniques	Eye-tracking, eye, tracking, visual, attention, stimuli
13	Functional near-infrared spectroscopy (fNIRS)	fNIRS, experiments