Atrial premature beats (APBs) precede PAF in a significant proportion of AF episodes and are a feature of enhanced automaticity, a recognised mechanism for AF.
In the current study, participants underwent a battery of tasks to test hypotheses regarding the speed and automaticity of formidability assessment mechanisms.
Here, I advocate for a more powerful approach based on contemporary theories that conceptualize automaticity in terms of cognitive mechanisms that underlie practice effects on performance.
Nonreentrant mechanisms include abnormal automaticity (AA) and triggered activity.
Therefore, I k1 current, conducted by Kir2.1, is believed to be one of the major mechanisms for suppressing automaticity.
Recognising that attention-based learning, mediated by the limbic system, and the hippocampus in particular, plays an important role in adaptive learning, we extend the Norman and Shallice model, introducing an intrinsic, attention-based learning mechanism that enhances the automaticity of willed actions and reduces future need for attentional effort.
The mechanism that underpins habitual action is automaticity; behaviour frequency is an antecedent, and consequence, of automaticity (Sniehotta & Presseau, 2012).
Although dopaminergic circuitry is known to play an important role in motor automaticity, little evidence exists on the neural mechanisms underlying the breakdown of locomotor automaticity in Parkinson's disease.
Electrical or focal mechanisms of AF include abnormal automaticity, triggered activity, and multiple variable reentrant circuits [ 1, 11].
The automaticity of the SAN and its molecular control mechanism have been topics of intense interest.
