Psychologists often dismiss introspection as an inappropriate measure, yet subjects readily volunteer detailed descriptions of the time and effort that they spent on a task. Are such reports really so inaccurate? We asked subjects to perform a psychological refractory period experiment followed by extensive quantified introspection. On each trial, just after their objective responses, subjects ...

Psychological research has documented again and again marked performance decrements whenever humans perform 2 or more tasks at the same time. In fact, the available evidence seems to suggest that any type of behavior is subject to such limitations. The present experiments employed the psychological refractory period (PRP) paradigm to identify a clear exception to this rule: Unconditioned reflex...

The goal of the present experiment was to test the predictions of Central Bottleneck and Central Capacity Sharing models. According to the Central Bottleneck model, dual task interference, as observed in the PRP paradigm, is caused by an all-or-none bottleneck in information processing. The Central Capacity Sharing model postulates that dual task interference is caused by a capacity limited pro...

We construct embedded closed minimal surfaces in the round three-sphere S(1), resembling two parallel copies of the Clifford torus, joined by m small catenoidal bridges symmetrically arranged along a square lattice of points on the torus.

Identifying the precise locus of general cognitive ability (g) in the flow of information between perception and action is an important goal of differential psychology. To localize the negative correlation between g and reaction time to a specific processing stage, we administered a speeded number-comparison task to two groups differing in average g. The participants had to respond to two stimu...

4-P-CHL0R0PHENYL-l-(3-p-fiuorobenzoylpropyl)-4-hydroxypiperidine (R. 1625, Haloperidol) is a new compound synthesized by Janssen et al. (1959) and reported to have biological properties similar to those of the phenothiazines at a much lower dosage level. One difference, however, was a greater tendency to potentiate pentobarbitone hypnosis. Von Eiff and Jesdinsky (1960) conducted a “¿ double b...

The main focus in this article is to analyse representations of body and class strength sport boxing a Swedish context during the period 1910–1960, as well their deeper societal meanin...

The island of Curacao in the Netherlands Antilles lies 60 miles north of northwestern Venezuela. The island is 38 miles long and 7 miles wide at its broadest point, 2tëmiles at the narrowest. The population is roughly 120,000; 75% are locally born negroid. Autopsy records for the period 1936-1960 showed esophageal cancer to be the most com mon malignant tumor for both men and women among these...