Manifest latent nystagmus (MLN) was identified in 31 patients by accurate eye movement records. All the patients had horizontal tropias, and the nystagmus fast phases were always in the direction of viewing eye. The slow phases of MLN are decreasing-velocity exponentials while those of the jerk form of congenital nystagmus (CN) are increasing velocity exponentials. Several subjects who were bel...

It is shown how two extensions of the latent Markov model that have been developed by Rolf Langeheine and his colleagues (latent mixed Markov models, latent state-trait models) can be integrated into a common general frame of reference. In particular, it is demonstrated that latent state-trait models are a special subgroup of latent mixed Markov models. The different chains of a latent mixed Ma...

An important problem in many fields is the analysis of counts data to extract meaningful latent components. Methods like Probabilistic Latent Semantic Analysis (PLSA) and Latent Dirichlet Allocation (LDA) have been proposed for this purpose. However, they are limited in the number of components they can extract and lack an explicit provision to control the “expressiveness” of the extracted comp...

This study proposed a three-stage measurement model utilizing the Latent Growth Curve Modeling and Class Analysis. The was illustrated using repeated data collected through four-week prospective tracking subjective well-being of volunteer college students (n=154). Firstly, several unconditional growth models were estimated to define providing better representation individual trajectories. Secon...

Background: Myofascial pain syndrome is a significant source of mechanical pain. The aim of this study was to investigate the effects of arm movement on reaction time in females with latent and active upper trapezius myofascial trigger point. Methods: In this interventional study, a convenience sample of fifteen women with one active MTP, fifteen women with one latent MTP in the upper trapez...