Stephen Dopkins

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Three experiments showed that reading about a character's actions can reactivate a goal of the character stated earlier in the passage and backgrounded by intervening material. Subjects were slower to read a line describing an action that was inconsistent with a goal of the protagonist than they were to read about an action that was consistent with the(More)
Six Korsakoffs amnesics, three mixed amnesics, and eight normal controls were taught the meaning of "bice", the word for a particular shade of blue-green. The conceptual interpretation that the Korsakoffs developed for "bice" differed in three respects from the one that the controls developed. (1) Although both Korsakoffs and controls applied the term more(More)
Left and right temporal lobectomy patients and normal controls were tested in a memory task for which the to-be-remembered items were simple actions involving small objects. Participants either performed the actions, perceived the experimenter performing the actions, or imagined themselves performing the actions. The patients were deficient relative to the(More)
Tests that tapped memory for spatial location, temporal order, frequency of occurrence, and category membership were administered to a group of alcoholic Korsakoff patients, a group of mixed amnesic patients with primarily temporal lobe pathology, and a group of normal subjects. The four tests were administered with incidental as well as intentional(More)
Two experiments produced evidence that category relationships contribute to similarity ratings. In Experiment 1, participants gave similarity ratings with respect to a semantic category (VEGETABLE) and a set of exemplars, some of which were members of the category (e.g., BROCCOLI) and some of which were not (e.g., BANANA). A regression analysis was used to(More)
Cognitive style and pleasant activities of 77 suicide-attempting female minority adolescents were compared with those of 2 groups of non-suicide-attempting female minority adolescents, 39 who were psychiatrically disturbed and 23 who were nondisturbed. Suicide attempters differed from other groups, even when depression and IQ were statistically controlled.(More)
Participants read lists of words and then made recognition judgments to pairs of words, each of which consisted of a prime word and a test word. At issue was the effect of a semantic relationship between the prime word and the test word on the recognition judgment to the test word. Under standard recognition conditions, semantic priming impeded correct(More)
In order to gain insight into the nature of human spatial representations, the current study examined how those representations are affected by blind rotation. Evidence was sought on the possibility that whereas certain environmental aspects may be updated independently of one another, other aspects may be grouped (or chunked) together and updated as a(More)
Alzheimer's disease (AD) patients and normal adults were tested in two complementary recognition tasks. On each trial of the faces task, participants matched the photograph of a famous individual to one of four names. On each tial of the names task, participants matched the name of a famous individual to one of four photographs. The AD patients made enough(More)