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This paper is concerned with the time series search and one-way trading problems. In the (time series) search problem a player is searching for the maximum (or minimum) price in a sequence that unfolds sequentially, one price at a time. Once during this game the player can decide to accept the current price p in which case the game ends and the player's(More)
It has been suggested that a unique feature of some mental heath practitioners' work is exposure through their role as therapists to clients' descriptions of and reactions to trauma, and that these experiences may actually indirectly cause distress and traumatization to the therapist. This proposed phenomenon has been termed "vicarious traumatization" (VT)(More)
The effects of stimulus intensity, duration, and risetime on the autonomic and behavioral components of orienting, startle, and defense responses were investigated. Six groups of 10 students were presented with 15 white noise stimuli at either 60 or 100 dB, with controlled risetimes of either 5 or 200 ms, and at stimulus durations of 1 or 5 s (1 s only in(More)
This study examined whether patients with temporal lobe epilepsy (TLE) and ictal fear (IF) show emotion recognition deficits similar to those associated with amygdala damage. Three groups of patients (13 with TLE and IF, 14 with TLE and nonfear auras (non-IF), and 10 with idiopathic generalized epilepsy (IGE)) completed tests of visual and face processing,(More)
OBJECTIVES Laboratory research using a working memory framework has shown modality-specific reductions in image vividness and emotionality when concurrent tasks are performed while maintaining the image in consciousness. We extended this research to trauma images in a clinical population awaiting treatment for post-traumatic stress symptoms. DESIGN A(More)
In the unidirectional conversion problem an on-line player is given the task of converting dollars to yen over some period of time. Each d a y, a new exchange rate is announced, and the player must decide how many dollars to convert. His goal is to minimize the competitive ratio, deened as sup E POPT(E) PX(E) , where E ranges over exchange rate sequences, P(More)