Freeze – fight – flight

In this program we assess the neuroendocrine mechanisms involved in defensive stress reactions. In one line of inquiry we assess cardiac and bodily responses to threat using a stabilometric balance platform combined with EEG to assess the shift from freeze to active fight-flight in humans with optimal temporal precision (Hannah Nierman, Jacobien van Peer). Another series of fMRI studies focuses on the role of the periaqueductal gray in freeze reactions (Maria Lojowska; Erno Hermans). Finally, the large NWO funded VICI project “Police In-action” explores the role of freeze-fight-flight reactions in stress-vulnerability and resilience in policemen (Mahur Hashemi, Wei Zhang, Reinoud Kaldeway, Saskia Koch and Floris Klumpers.

Roelofs - EPAN (29)

Freeze to fight

In the first part of this program we investigate whether freezing serves a passive or rather active preparatory…

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freezing

Freezing and perception

In this program we explore the relation between fear and visual processing. In particular, we investigate the effects…

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Roelofs - EPAN (29)

Psychopathology

Affective processes are thought to contribute to more than 50% of all mental healthy problems. A variety of…

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