Results 51 to 60 of about 66,607 (349)
Habituation of the startle reflex depends on attention in cannabis users
BMC Psychology, 2016 Background Cannabis use is associated with an attention-dependent deficit in prepulse inhibition of the startle reflex (PPI). The aim of the current study was to investigate startle habituation in cannabis users and healthy controls during two ...
Karina K. Kedzior +2 more
doaj +1 more source
Modeling startle eyeblink electromyogram to assess fear learning
Psychophysiology, 2016 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,
Saurabh Khemka +4 more
semanticscholar +1 more source
A simple method for measuring the acoustic startle response using a low-cost electromyography acquisition device [PDF]
, 2020 Acoustic startle response and its prepulse inhibition have been used as tools for elucidating auditory information processing of humans and animals and for screening some mental disorders such as schizophrenia. However, measuring these phenomena requires
山田, 一之 +2 more
core
Startle Habituation and Midfrontal Theta Activity in Parkinson Disease
Journal of Cognitive Neuroscience, 2016 The ability to adapt to aversive stimuli is critical for mental health. Here, we investigate the relationship between habituation to startling stimuli and startle-related activity in medial frontal cortex as measured by EEG in both healthy control ...
Kuan-Hua Chen +5 more
semanticscholar +1 more source
Frontiers in Human Neuroscience, 2020 Several studies have implied gender differences in startle reaction to emotional facial expressions. However, few studies have been designed to investigate the difference between responding to emotional female vs.
Ole Åsli, Morten Øvervoll
doaj +1 more source
Effect of stress and attention on startle response and prepulse inhibition.
Physiology and Behavior, 2016 The startle reflex magnitude can be modulated when a weak stimulus is presented before the onset of the startle stimulus, a phenomenon termed prepulse inhibition (PPI).
L. G. De la Casa +2 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley +1 more source
The effect of emotional and attentional load on attentional startle modulation [PDF]
, 2009 The interactive effects of emotion and attention on attentional startle modulation were investigated in two experiments. Participants performed a discrimination and counting task with two visual stimuli during which acoustic eyeblink startle-eliciting ...
Lipp, Ottmar V. +8 more
core +1 more source