Online Engagement Between Opposing Political Protest Groups via Social Media is Linked to Physical Violence of Offline Encounters

by John D. Gallacher, Marc W. Heerdink, Miles Hewstone
Published 2021-01-01

Emotional Reactions to Deviance in Groups: The Relation between Number of Angry Reactions, Felt Rejection, and Conformity

by Marc W. Heerdink, Gerben A. Van Kleef, Astrid C. Homan, Agneta H. Fischer
Published 2015-06-01

Pitching Emotions: The Interpersonal Effects of Emotions in Professional Baseball

by Arik eCheshin, Arik eCheshin, Marc W. Heerdink, Jolanda J Kossakowski, Gerben A. Van Kleef
Published 2016-02-01