Numerous experiments dealing with measuring of changes in human physiology due to mental stress are reported. In these researches, a stimulus is commonly employed to mentally, emotionally or cognitively affect the human subject and hers/his perception, resulting in changes in physiology. When evaluating such experiments from the metrology perspective, there is a clear lack of consistence and kn...

Most earlier studies investigating the evolution of the Stroop effect with the amount of reading practice have reported data consistent with an inverted U-shaped curve, whereby the Stroop effect appears early during reading acquisition, reaches a peak after 2 or 3 years of practice, and then continuously decreases until adulthood. The downward component of the curve suggests that skilled perfor...

Although the King-Devick (K-D) test has been used frequently in assessing sports related concussion early after injury, its characteristics over time after injury and in patients with prolonged persistent symptoms are unknown. The purpose of this paper was to: evaluate the ability of the K-D Test to distinguish patients seen early after concussion from those with symptoms persisting more than 3...

Background: Schizophrenia is a psychiatric disorder that impairs several intellectual functions, including attention processes.  Objectives: To investigate attention deficit in a group of patients with schizophrenia.  Method: Thirty patients with schizophrenia hospitalized in three psychiatric wards in Shiraz and Isfahan and 30 normal healthy subjects matched for age, gender and years of educat...

The Color Stroop Test is consensually considered as a task to assess the efficiency of inhibitory mechanisms. If the Stroop interference effect is largely undisputed, it is also acknowledged that the size of this effect varies as a function of various task manipulations, such as the task format. The aim of the present study was to compare the size of adult age-related differences in inhibition ...

Recently, swimming-style colour synaesthesia was introduced as a new form of synaesthesia. A synaesthetic Stroop test was used to establish its genuineness. Since Stroop interference can occur for any type of overlearned association, in the present study we used a modified Stroop test and psychophysiological synaesthetic conditioning to further establish the genuineness of this form of synaesth...

A surge in the search for endophenotypes for psychiatric disorders has occurred in the past several years. An important criterion of an endophenotype is that it is heritable. Two of the most widely used executive cognitive functioning measures are the Wisconsin Card Sorting Test (WCST) and the Stroop Color-Word Test. Each has been considered as a possible endophenotype. However, research on the...