Results 31 to 40 of about 66,607 (349)

Psychophysiological correlates of peritraumatic dissociative responses in survivors of life-threatening cardiac events [PDF]

open access: yes, 2002
The psychophysiological startle response pattern associated with peritraumatic dissociation (DISS) was studied in 103 survivors of a life-threatening cardiac event (mean age 61.0 years, SD 13.95).
Hofmann, B.   +9 more
core   +1 more source

Ca2+ signaling in astrocytes from IP3R2−/− mice in brain slices and during startle responses in vivo

open access: yesNature Neuroscience, 2015
Intracellular Ca2+ signaling is considered to be important for multiple astrocyte functions in neural circuits. However, mice devoid of inositol triphosphate type 2 receptors (IP3R2) reportedly lack all astrocyte Ca2+ signaling, but display no neuronal ...
Rahul Srinivasan   +7 more
semanticscholar   +1 more source

Measuring the conditioned response: A comparison of pupillometry, skin conductance, and startle electromyography.

open access: yesPsychophysiology, 2018
In human fear conditioning studies, different physiological readouts can be used to track conditioned responding during fear learning. Commonly employed readouts such as skin conductance responses (SCR) or startle responses have in recent years been ...
L. Leuchs, Max Schneider, V. Spoormaker
semanticscholar   +1 more source

In the Blink of an Eye: Investigating the Role of Awareness  in Fear Responding by Measuring the Latency of  Startle Potentiation

open access: yesBrain Sciences, 2012
The latency of startle reflex potentiation may shed light on the aware and unaware processes underlying associative learning, especially associative fear learning.
Ole Åsli, Magne A. Flaten
doaj   +1 more source

Neural circuitry of a polycystin-mediated hydrodynamic startle response for predator avoidance

open access: yesbioRxiv, 2018
Startle responses triggered by aversive stimuli including predators are widespread across animals. These coordinated whole-body actions require the rapid and simultaneous activation of a large number of muscles.
L. A. Bezares-Calderón   +8 more
semanticscholar   +1 more source

Startle-like behaviors of Hb+ N. coriiceps and Hb- C. aceratus as a function of temperature.

open access: yes, 2021
(A) Time plots of angular velocity (Va) during startle-like maneuvers at respective temperatures in a single specimen of N. coriiceps and C. aceratus. Rainbow color code denotes the continuum of angular velocities from low (violet) to high (red) during ...
Iraida E. Andreeva (11751822)   +3 more
core   +1 more source

Quantifying the Acoustic Startle Response in Mice Using Standard Digital Video

open access: yesFrontiers in Behavioral Neuroscience, 2020
The startle response is an unconditional reflex, characterized by the rapid contraction of facial and skeletal muscles, to a sudden and intense startling stimulus.
Madeline M. Pantoni   +5 more
doaj   +1 more source

A Cyfip2-Dependent Excitatory Interneuron Pathway Establishes the Innate Startle Threshold

open access: yesCell Reports, 2018
SUMMARY Sensory experiences dynamically modify whether animals respond to a given stimulus, but it is unclear how innate behavioral thresholds are established.
K. Marsden   +8 more
semanticscholar   +1 more source

The Startle Test Revisited [PDF]

open access: yesJournal of Perinatology, 2004
Our purpose was to the compare fetal heart reaction to external physical stimulation with the nonstress test (NST).This prospective study evaluates documentation of fetal heart rate accelerations by two methods. The standard NST was performed prior to the ultrasound evaluation. The NST results were unavailable to the ultrasonographer. M-mode ultrasound
Joseph M, Miller   +2 more
openaire   +2 more sources

The relation of neuroticism to physiological and behavioral stress responses induced by auditory startle

open access: yesBrain and Behavior, 2022
Introduction The negative cognitive effects of the startle response are not yet fully understood. Ecological observations in the aviation field indicate risk for severe outcomes in complex or pressured situations, while sparse previous research suggests ...
Malcolm Sehlström   +3 more
doaj   +1 more source

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