Abstract Luria (Luria, Cognitive development: Its cultural and social foundations, Harvard University Press, 1976) famously observed that people who never learnt to read write do not perceive visual illusions. We conducted a conceptual replication of the study effect literacy on processing designed two carefully controlled experiments with 161 participants varying levels ranging from complete i...

What is the expected number of mutants in a stochastically growing colony once it reaches a given size, N? This is a variant of the famous Luria-Delbruck model which studies the distribution of mutants after a given time-lapse. Instead of fixing the time-lapse, we assume that the colony size is a measurable quantity, which is the case in many in-vivo oncological and other applications. We study...

The Luria-Delbrück distribution is a classical model of mutations in cell kinetics. It is obtained as a limit when the probability of mutation tends to zero and the number of divisions to infinity. It can be interpreted as a compound Poisson distribution (for the number of mutations) of exponential mixtures (for the developing time of mutant clones) of geometric distributions (for the number of...

The adequacy of neuropsychological norms is dependent on the characteristics of the subjects whose data are used. Volunteer participants and neurologically normal participants in major normative studies show markedly different patterns of test performance that reflects on the inadequacy of using volunteer participants to develop norms. In this study when all of the Halstead Reitan Battery normi...

OBJECTIVE To compare the effectiveness of two methods of assessing off-road driving skills that claim to predict on-road driving fitness of persons with stroke. METHOD Fifty-six persons with stroke (age 44 to 82 yrs; mean, 60.2 yrs) completed the 2 off-road driving assessments along with standard clinical and on-road driving tests. MAIN OUTCOME MEASURES Linear stepwise regression on 4 varia...

This paper deals with the theory of the social genesis of higher mental functions (HMF) developed by Vуgotsky and Luria. Their systemic cultural-historical approach, the first premise of developmental neuropsychology, stresses the influence of social and cultural factors on the child’s cognitive development, the social nature of function formation, and the role of mediation (the use of social m...