Results 81 to 90 of about 480,216 (163)

Fear-Potentiated Startle Paradigm in Mice

, 2012
Faculty adviser: Prof. Jonathan GewirtzTUF1 is a novel neuropeptide highly concentrated in the amygdala, hippocampus, hypothalamus, and the endocrine tissue.
Demova, Jiva, Zimbel, Max
core  

CRF1 and CRF2 receptors are required for potentiated startle to contextual but not discrete cues.

, 2009
Corticotropin-releasing factor (CRF) peptides and their receptors have crucial roles in behavioral and endocrine responses to stress. Dysregulation of CRF signaling has been linked to post-traumatic stress disorder, which is associated with increased ...
Holsboer, F., Geyer, M.A., Wurst, W., Hauger, R.L., Coste, S., Stenzel-Poore, M., Risbrough, V.B.   +6 more
core   +1 more source

Fear, Startle, and Fear-Potentiated Startle [Elektronisk resurs] : Probing Emotion in the Human Brain

, 2003
The present thesis explored the neurobiological basis of three aspects of defense behaviors in humans. Positron emission tomography methodology was used, and changes in regional cerebral blood flow (rCBF) were measured as an index of neural activity ...
Rauch, Scott,, Pissiota, Anna,, Fredrikson, Mats   +2 more
core   +4 more sources

Social Fear Conditioning Paradigm in Virtual Reality: Social vs. Electrical Aversive Conditioning

Frontiers in Psychology, 2017
In a previous study we could show that social fear can be induced and extinguished using virtual reality (VR). In the present study, we aimed to investigate the belongingness effect in an operant social fear conditioning (SFC) paradigm which consisted of
Jonas Reichenberger, Sonja Porsch, Jasmin Wittmann, Verena Zimmermann, Youssef Shiban   +4 more
doaj   +1 more source

Double Dissociation between the Involvement of the Bed Nucleus of the Stria Terminalis and the Central Nucleus of the Amygdala in Startle Increases Produced by Conditioned versus Unconditioned Fear

, 1997
The amplitude of the acoustic startle response is reliably enhanced when elicited in the presence of bright light (light-enhanced startle) or in the presence of cues previously paired with shock (fear-potentiated startle).
Michael Davis, David L. Walker
core   +1 more source

Excitotoxic lesions in the central nucleus of the amygdala attenuate stress-induced anxiety behavior

Frontiers in Behavioral Neuroscience, 2013
The extended amygdala, composed by the amygdaloid nuclei and the bed nucleus of the stria terminalis (BNST), plays a critical role in anxiety behavior.
Ana Paula eVentura-Silva, Ana Paula eVentura-Silva, António eMelo, António eMelo, Ana Catarina eFerreira, Ana Catarina eFerreira, Miguel Murteira eCarvalho, Miguel Murteira eCarvalho, Filipa Lopes eCampos, Filipa Lopes eCampos, Nuno eSousa, Nuno eSousa, José M Pêgo, José M Pêgo   +13 more
doaj   +1 more source

Oxytocin reduces background anxiety in a fear-potentiated startle paradigm: Peripheral vs central administration. Neuropsychopharmacology 36

, 2011
Oxytocin reportedly decreases anxious feelings in humans and may therefore have therapeutic value for anxiety disorders, such as post-traumatic stress disorder (PTSD).
Jay Schulkin, Luke W Ayers, Jeffrey B Rosen, Galen Missig   +3 more
core  

HIV Interacts with Posttraumatic Stress Disorder to Impact Fear Psychophysiology in Trauma-Exposed Black Women

Women's Health Reports
Background: The prevalence of posttraumatic stress disorder (PTSD) among people living with HIV (PLWH) is higher than in the general population and can impact health behaviors.
Susie Turkson, Sanne J.H. van Rooij, Abigail Powers, Ighovwerha Ofotokun, Seth D. Norrholm, Gretchen N. Neigh, Tanja Jovanovic, Vasiliki Michopoulos   +7 more
doaj   +3 more sources

Fear-potentiated startle reactivity and risk for anxiety in adolescents

, 2006
The startle blink reflex is an important tool for the study of emotion and psychopathology. Self-reported fearfulness and anxiety influence fear-potentiated startle (Cook et al., 1999) and studies with at risk adolescents (Grillon et al., 1997, 1998 ...
Ornitz, E., Zinbarg, R., Mineka, S., Craske, Michelle G., Waters, Allison   +4 more
core  

The relationship between anxiety sensitivity and fear-potentiated startle

, 2002
The present study evaluated the effects of fear/anticipatory anxiety on the acoustic startle reflex of participants with differing levels of anxiety sensitivity. The eyeblink component of the startle reflex, elicited by an abrupt auditory stimulus (i.e.,
Avila, Laura Leal
core   +1 more source