scholarly journals The Relative Contribution of Adaptation and Temporal Integration in Forward Masking

2010 ◽  
Author(s):  
Naveen K. Nagaraj ◽  
Jeffrey J. DiGiovanni ◽  
Dennis T. Ries
Keyword(s):  
Temporal Integration ◽  
Forward Masking ◽  
Relative Contribution

scholarly journals Temporal integration of forward masking in normal and hearing‐impaired listeners

1980 ◽  
Vol 68 (S1) ◽  
pp. S38-S38
Author(s):  
G. Kidd ◽  
L. L. Feth ◽  
M. Corban ◽  
C. Beachler
Keyword(s):  
Temporal Integration ◽  
Forward Masking ◽  
Hearing Impaired

Distinguishing the Causes of Firing with the Membrane Potential Slope

2012 ◽  
Vol 24 (9) ◽  
pp. 2318-2345 ◽  
Author(s):  
Achilleas Koutsou ◽  
Chris Christodoulou ◽  
Guido Bugmann ◽  
Jacob Kanev
Keyword(s):  
Membrane Potential ◽  
Time Course ◽  
Temporal Integration ◽  
Coincidence Detection ◽  
Operational Mode ◽  
Relative Contribution ◽  
Temporal Integrator ◽  
Operational Modes ◽  
The Brain ◽  
Irregular Firing

In this letter, we aim to measure the relative contribution of coincidence detection and temporal integration to the firing of spikes of a simple neuron model. To this end, we develop a method to infer the degree of synchrony in an ensemble of neurons whose firing drives a single postsynaptic cell. This is accomplished by studying the effects of synchronous inputs on the membrane potential slope of the neuron and estimating the degree of response-relevant input synchrony, which determines the neuron's operational mode. The measure is calculated using the normalized slope of the membrane potential prior to the spikes fired by a neuron, and we demonstrate that it is able to distinguish between the two operational modes. By applying this measure to the membrane potential time course of a leaky integrate-and-fire neuron with the partial somatic reset mechanism, which has been shown to be the most likely candidate to reflect the mechanism used in the brain for reproducing the highly irregular firing at high rates, we show that the partial reset model operates as a temporal integrator of incoming excitatory postsynaptic potentials and that coincidence detection is not necessary for producing such high irregular firing.

Multidimensional Anxiety and Content-specificity Effects in Preferential Processing of Threat

2003 ◽  
Vol 8 (4) ◽  
pp. 252-265 ◽  
Author(s):  
Manuel G. Calvo ◽  
P. Avero ◽  
M. Dolores Castillo ◽  
Juan J. Miguel-Tobal
Keyword(s):  
Selective Attention ◽  
Cognitive Biases ◽  
Naming Task ◽  
Color Naming ◽  
Memory Bias ◽  
Ego Threat ◽  
Phobic Anxiety ◽  
Relative Contribution ◽  
Content Specificity ◽  
Specificity Effects

We examined the relative contribution of specific components of multidimensional anxiety to cognitive biases in the processing of threat-related information in three experiments. Attentional bias was assessed by the emotional Stroop word color-naming task, interpretative bias by an on-line inference processing task, and explicit memory bias by sensitivity (d') and response criterion (β) from word-recognition scores. Multiple regression analyses revealed, first, that phobic anxiety and evaluative anxiety predicted selective attention to physical- and ego-threat information, respectively; cognitive anxiety predicted selective attention to both types of threat. Second, phobic anxiety predicted inhibition of inferences related to physically threatening outcomes of ambiguous situations. And, third, evaluative anxiety predicted a response bias, rather than a genuine memory bias, in the reporting of presented and nonpresented ego-threat information. Other anxiety components, such as motor and physiological anxiety, or interpersonal and daily-routines anxiety made no specific contribution to any cognitive bias. Multidimensional anxiety measures are useful for detecting content-specificity effects in cognitive biases.

Temporal Integration in Pavlovian Appetitive Conditioning

2004 ◽  
Author(s):  
Kosuke Sawa ◽  
Kenneth Leising ◽  
Aaron P. Blaisdell
Keyword(s):  
Temporal Integration ◽  
Appetitive Conditioning
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