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Stimulus threshold

stimulus threshold --> absolute threshold

The lowest limit of any perception whatever.

Compare: differential threshold.

Synonym: stimulus threshold.


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Effects of variation in Flicker Fusion Thresholds (vision)

... interest to me is vision and in particular the flicker fusion threshold (FFR); the frequency at which an intermittent stimulus appears continuous. According to the following article this threshold differs from ...

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by NMLevesque
Sat Nov 23, 2013 6:47 pm
 
Forum: General Discussion
Topic: Effects of variation in Flicker Fusion Thresholds (vision)
Replies: 0
Views: 1331

[NEUROSCIENCE]-Two Questions about AP Propagation

1. If the threshold is the membrane potential AT WHICH sufficient number of Na+-voltage gated channels ... does the membrane potential get to the threshold in the first place? Attempt: a stimulus causes the activation of special ion channels (not the voltage-gated ones) that ...

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by AbducensNucleus
Sun Aug 05, 2012 4:19 am
 
Forum: Human Biology
Topic: [NEUROSCIENCE]-Two Questions about AP Propagation
Replies: 5
Views: 4966

Nervous system

... does this have? 4.In a classic experiment, the strength of a neural stimulus and the resulting muscle contraction are compared. A single motor ... Analyze the data and answer the following questions. a) Define "threshold potential." What is the minimum size of the stimulus required ...

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by Catherine89
Sun Feb 05, 2012 7:22 pm
 
Forum: Human Biology
Topic: Nervous system
Replies: 0
Views: 3736

Re:

... in networks that have predictable behaviors. First and foremost is threshold behavior. Stimuli must overcome a given amount of intensity before ... in neural networks is their lack of sensitivity to the idea of too much stimulus. You can't have too much beauty. You are wrong when you say we humans ...

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by charles brough
Wed Aug 17, 2011 8:10 pm
 
Forum: Evolution
Topic: Why are flowers "beautiful"?
Replies: 112
Views: 54845

Why are flowers "beautiful"?

... in networks that have predictable behaviors. First and foremost is threshold behavior. Stimuli must overcome a given amount of intensity before ... in neural networks is their lack of sensitivity to the idea of too much stimulus. You can't have too much beauty. You are wrong when you say we humans ...

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by BDDVM
Mon Nov 29, 2010 3:50 pm
 
Forum: Evolution
Topic: Why are flowers "beautiful"?
Replies: 112
Views: 54845
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