Results 11 to 20 of about 234,528 (304)

Serotonergic Modulation of Conditioned Fear [PDF]

Scientifica, 2012
Conditioned fear plays a key role in anxiety disorders as well as depression and other neuropsychiatric conditions. Understanding how neuromodulators drive the associated learning and memory processes, including memory consolidation, retrieval/expression,
Judith R. Homberg
doaj   +3 more sources

Transgenic inhibition of neuronal calcineurin activity in the forebrain facilitates fear conditioning, but inhibits the extinction of contextual fear memories [PDF]

, 2008
It is unclear whether protein phosphatases, which counteract the actions of protein kinases, play a beneficial role in the formation and extinction of previously acquired fear memories.
Eisel, Ulrich L. M., Havekes, Robbert, Nijholt, Ingrid M., Van der Zee, Eddy A., Visser, Anniek K. D.   +4 more
core   +8 more sources

Enhanced Instructed Fear Learning in Delusion-Proneness

Frontiers in Psychology, 2022
Psychosis is associated with distorted perceptions and deficient bottom-up learning such as classical fear conditioning. This has been interpreted as reflecting imprecise priors in low-level predictive coding systems. Paradoxically, overly strong beliefs,
Anaïs Louzolo, Rita Almeida, Marc Guitart-Masip, Malin Björnsdotter, Alexander Lebedev, Martin Ingvar, Andreas Olsson, Predrag Petrovic   +7 more
doaj   +1 more source

Prior observation of fear learning enhances subsequent self-experienced fear learning with an overlapping neuronal ensemble in the dorsal hippocampus

Molecular Brain, 2019
Information from direct experience and observation of others is integrated in the brain to enable appropriate responses to environmental stimuli. Fear memory can be acquired by observing a conspecific’s distress.
Hiroshi Nomura, Chie Teshirogi, Daisuke Nakayama, Masabumi Minami, Yuji Ikegaya   +4 more
doaj   +1 more source

Is conditioning a useful framework for understanding the development and treatment of phobias? [PDF]

, 2006
Despite the prevalence of therapeutic interventions based on conditioning models of fear acquisition, conditioning has been seen by many as a poor explanation of how fears develop: partly because research on conditioning has become less mainstream and ...
Aitken, Aitken, Andy P. Field, Askew, Black, Bouton, Bouton, Bouton, Bregman, Burnham, Campbell, Chapman, Collins, Davey, Davey, Davey, Davey, Davey, Davey, De Houwer, De Houwer, Dickinson, Dickinson, Dinardo, Dollinger, Dwyer, Dwyer, Dwyer, Dwyer, Eysenck, Field, Field, Field, Field, Field, Field, Garcia, Gerull, Gullone, Izquierdo, Izquierdo, Kamin, King, Kruschke, Kruschke, Lautch, Le Pelley, Le Pelley, Liddell, Lober, Lubow, Lubow, Mackintosh, Mackintosh, Mackintosh, Menzies, Menzies, Menzies, Merckelbach, Mineka, Muris, Ollendick, Pavlov, Pearce, Pearce, Perales, Pinel, Rachman, Rachman, Rescorla, Rescorla, Rescorla, Rescorla, Rescorla, Rescorla, Rescorla, Rescorla, Seligman, Soloman, Valentine, Watson, Withers, Wolpe, Yule, Öhman, Öhman, Öst, Öst   +87 more
core   +1 more source

Fear memory formation can affect a different memory: fear conditioning affects the extinction, but not retrieval, of conditioned taste aversion (CTA) memory

Frontiers in Behavioral Neuroscience, 2014
The formation of fear memory to a specific stimulus leads to subsequent fearful response to that stimulus. However, it is not known whether the formation of fear memory can affect other memories.
Gil eJoels, Raphael eLamprecht
doaj   +1 more source

Modeling startle eyeblink electromyogram to assess fear learning [PDF]

, 2017
Pavlovian fear conditioning is widely used as a laboratory model of associative learning in human and nonhuman species. In this model, an organism is trained to predict an aversive unconditioned stimulus from initially neutral events (conditioned stimuli,
Bach, DR, Gerster, S, Khemka, S, Quednow, BB, Tzovara, A   +4 more
core   +2 more sources

Who's afraid of the big bad wolf: a prospective paradigm to test Rachman's indirect pathways in children [PDF]

, 2001
Rachman's theory [The conditioning theory of fear insition: a critical examination. Behav. Res. Ther. 15 (1977) 375–387] of fear acquisition suggests that fears and phobias can be acquired through three pathways: direct conditioning, vicarious learning ...
Ajzen, Ajzen, Andy P Field, Bauer, Brewin, Campbell, Cook, Cooke, Davey, Davey, Davey, Davey, Davey, Davey, Davey, Davey, Dollinger, Doogan, Draper, Ellis, Field, French, Fuchs, Fuchs, Greenwood, Gullone, Jones, Karina A Knowles, King, Klinnert, Linton, Menzies, Menzies, Menzies, Merckelbach, Merckelbach, Mineka, Muris, Muris, Muris, Muris, Nicolas G Argyris, Ollendick, Ollendick, Rachman, Rachman, Rubin, Schaffer, Silverman, Sullivan, Vasey, Watson, White, Yule, Yule, Öst, Öst   +56 more
core   +1 more source

Contextual Fear Conditioning in Zebrafish [PDF]

Learning & Memory, 2016
AbstractZebrafish are a genetically tractable vertebrate that hold considerable promise for elucidating the molecular basis of behavior. Although numerous recent advances have been made in the ability to precisely manipulate the zebrafish genome, much less is known about many aspects learning and memory in adult fish. Here, we develop a contextual fear
Kenney, Justin W., Scott, Ian C., Josselyn, Sheena A., Frankland, Paul W.   +3 more
openaire   +2 more sources

Contextual Fear Conditioning Alter Microglia Number and Morphology in the Rat Dorsal Hippocampus

Frontiers in Cellular Neuroscience, 2019
Contextual fear conditioning is a Pavlovian conditioning paradigm capable of rapidly creating fear memories to contexts, such as rooms or chambers.
Nicholas Chaaya, Nicholas Chaaya, Angela Jacques, Angela Jacques, Arnauld Belmer, Arnauld Belmer, Kate Beecher, Kate Beecher, Syed A. Ali, Syed A. Ali, Fatemeh Chehrehasa, Fatemeh Chehrehasa, Andrew R. Battle, Andrew R. Battle, Andrew R. Battle, Luke R. Johnson, Luke R. Johnson, Luke R. Johnson, Selena E. Bartlett, Selena E. Bartlett   +19 more
doaj   +1 more source