extinction,in biology, disappearance of species of living organisms. Extinction usually occurs as a result of changed conditions to which the species is not suited. If no member of the affected species survives and reproduces, the entire line dies out, leaving no descendants. This was the case...
Human brainFear extinction is the decrease in conditioned fear responses that normally occurs when a conditioned stimulus (CS) is repeatedly presented in the absence of the aversive unconditioned stimulus (US). Extinction does not erase the initial CS鈥揢S association, but is thought to form a ...
or when interventions fail, can strengthen aversive episodic and spatial memories35,36,124. Yet, our findings may be in line with previous studies showing that reconsolidation-based interventions leave explicit knowledge about contingencies intact18. Hence, our results...
Fear extinction is an active learning process whereby previously established conditioned responses to a conditioned stimulus are suppressed. Paradoxically, when extinction training is performed immediately following fear acquisition, the extinction memor
What is the difference between extinction and extinguishment in psychology? How did classical conditioning start? What are the different types of classical conditioning? How does classical conditioning occur in industry? What is an extinction burst? When learning occurs through classical conditioning, what...
Renewal is the recovery of extinguished responding to a CS when testing occurs out of the extinction context. • Under some conditions, an extinction context can become inhibitory • This inhibition can contribute to renewal by decreasing responding in the ABB control condition. • Prolonged exp...
"It’s your dream," says Rosalind Cartwright, chair of psychology at Chicago’s Medical Center, "if you don’t like it, change it." Evidence from brain imaging supports this view. The brain is as active during REM (rapid eye movement) sleep—when most vivid dreams occur—as it is ...
‗Some‘enormousburstsenergyfromstarshavetypicallybeenunderstoodnovaeventwhichoccurswhenstar‗sheds‘mostitscorona.starincreaseitsgalaxymovesaway.However,itsclosestpoint(perigee),whenmovesawayfrommatter(e.g.plasma)coronaheldincreasedmassgravitationalforces(sungalacticcore)releasedbecausesubsequentlytoogreatleasttwo...
Insomnia is defined herein as the inability to fall asleep or to stay asleep for a sufficient amount of time during regular sleeping hours. It includes acute insomnia, which occurs in either a transient or short term form, and chronic insomnia. It also includes initial insomnia, defined as dif...
When ... M,E,Bouton,... - 《Journal of Experimental Psychology Animal Behavior Processes》 被引量: 1620发表: 1983年 Deficits in Conditioned Fear Extinction in Obsessive-Compulsive Disorder and Neurobiological Changes in the Fear Circuit To examine the psychophysiological and neurobiological correlates ...