Attention, the presolution period, and choice accuracy in pigeons.

Six pigeons were trained first on a color then on a form discrimination; four other pigeons were trained first on form and then on color. One of two colors or one of two forms (sample stimuli) appeared in the center of a touch sensitive monitor for 5 pigeons and in the center and in 16 other locations for 5 other pigeons. A peck anywhere within the region in which the sample stimuli appeared produced two white disks (comparison stimuli), one on the left and one on the lower right corners of the screen. Correct left-right choices provided food. Although of no consequence, the location of pecks in presence of the sample was predictive of the pigeon's subsequent choice. Accuracy, choice of the correct comparison stimulus, was greater when the sample stimuli appeared in the center as well as 16 other locations than when it appeared only in the center. The presolution period, the period of chance accuracy prior to evidence of discrimination learning, was decreased on each task following training on the other task. This evidence of facilitation following an extra-dimensional shift was attributed to continued relevance of the conditions under which the first task was learned. The duration of the presolution period was inversely related to asymptotic accuracy-data accounted for by Heinemann's (1983) theory of information processing during the presolution period.

Compulsive fantasy: proposed evidence of an under-reported syndrome through a systematic study of 90 self-identified non-normative fantasizers.

The experiences of 90 individuals who self-identify as "excessive" or "maladaptive" fantasizers are summarized in this report. Our sample consisted of 75 female and 15 male participants, ranging in age from 18 to 63 who responded to online announcements. Participants completed a 14-question emailed survey requesting descriptions of their fantasy habits and causes of potential distress regarding fantasy. Results demonstrated that participants shared a number of remarkably specific behaviors and concerns regarding their engagement in extensive periods of highly-structured, immersive imaginative experiences, including the use of kinesthetic activity which accompanies the fantasies of 79% of participants. Participants reported distress stemming from three factors: difficulty in controlling the need or desire to engage in fantasizing; concern that the quantity of fantasizing interfered with actual relationships and endeavors; and intense shame and exhaustive efforts to keep this behavior hidden from others. It is hoped that this report will encourage interest in this elusive syndrome.

Excessive daydreaming: a case history and discussion of mind wandering and high fantasy proneness.

This case study describes a patient presenting with a long history of excessive daydreaming which has caused her distress but is not incident to any other apparent clinical psychiatric disorders. We have treated this patient for over 10 years, and she has responded favorably to fluvoxamine therapy, stating that it helps to control her daydreaming. Our patient, and other psychotherpists, have brought to our attention other possible cases of excessive daydreaming. We examine the available literature regarding daydreaming, mind wandering, and fantasy proneness relative to current cognitive and neuroanatomical models of executive attention.