Interference Dissociation

Principles governing 2:1 AV block with interference dissociation.

Interference dissociation in the presence of dual atrioventricular nodal physiology

Introduction Dual atrioventricular nodal physiology (DAVNP) is present in 10% to 35% of the general population and is known to regress with aging. It usually manifests as a critical AH jump on electrophysiologic testing or on surface electrocardiography as a change in PR interval with subsequent tachycardia. Preferential choice of pathway engagement (slow vs fast) is dependent upon refractory p...

Two cases of complex A-V interference-dissociation.

Case 1. An 18-year-old office worker, male, was admitted to our Clinic on Oct. 7, 1961, with the chief complaints of bradycardia and attacks of vertigo. He has a history of severe suppuration in the right arm at the age of 3 years, after which bradycardia (40 to 50 per min.) has been noticed. Since 16 years of age occasional attacks of vertigo and headache lasting several minutes occurred, acco...

Dissociation with interference, reciprocal rhythm, and coronary sinus rhythm.

Spatial compatibility interference effects: a double dissociation between two measures

In spatial compatibility tasks, when the spatial location of a stimulus is irrelevant it nevertheless interferes when a response is required in a different spatial location. For example, response with a left key-press is slowed when the stimulus is presented to the right as compared to the left side of a computer screen. However, in some conditions this interference effect is not detected in re...