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Full-Text Articles in Psychology
Neuropsychological Approaches To Perceptual Organization, Marlene Behrmann
Neuropsychological Approaches To Perceptual Organization, Marlene Behrmann
Marlene Behrmann
This chapter takes a neuropsychological perspective on questions concerning analytic and holistic processing. It examines the behavior of seven brain-damaged patients who have problems with perceptual organization. These “integrative agnostic” patients seem to be disproportionately impaired on tasks tapping holistic configural processes compared to part-based processes. The first section of this chapter outlines three main empirical issues falling under the domain of perceptual organization: figure-ground organization, visual interpolation, and grouping. The second section contains a description of the patients. The third section examines the nature of the impairment in perceptual organization, in relation to figure-ground organization, visual interpolation, and grouping.
Patient Schn: Has Goldstein And Gelb’S Case Withstood The Test Of Time?, Jonathan Marotta, Marlene Behrmann
Patient Schn: Has Goldstein And Gelb’S Case Withstood The Test Of Time?, Jonathan Marotta, Marlene Behrmann
Marlene Behrmann
The current manuscript takes a critical look at the case of Goldstein and Gelb’s patient, Schn, reported to be the first well-defined example of apperceptive visual agnosia. While doubts have been cast on the validity of the original investigations, we propose that perhaps the case of Schn should be reclassified as an example of integrative agnosia. Be that as it may, what is not in doubt is that the case of Schn has had a lasting impact on the development of neuropsychological theorem.
Acquisition Of Long-Term Visual Representations: Psychological And Neural Mechanisms, Marlene Behrmann, Joy Geng, Chris Baker
Acquisition Of Long-Term Visual Representations: Psychological And Neural Mechanisms, Marlene Behrmann, Joy Geng, Chris Baker
Marlene Behrmann
How do we so rapidly achieve an organized, coherent visual percept of our superficially chaotic world? One way of reducing the complexity of the input is to take advantage of the statistical regularities and regular co-occurrences between aspects of objects and between objects and their spatial locations. In this chapter, converging data obtained from normal and brain-damaged individuals, as well as from single unit recording studies in monkeys, are presented, all of which address the psychological and neural mechanisms associated with statistical learning. The first section deals with learning regularities associated with particular spatial locations, presumably a function of the …
Visuoperceptual Deficits In Letter-By-Letter Reading?, Rachel Mycroft, Marlene Behrmann, Janice Kay
Visuoperceptual Deficits In Letter-By-Letter Reading?, Rachel Mycroft, Marlene Behrmann, Janice Kay
Marlene Behrmann
A longstanding and controversial issue concerns the underlying mechanisms that give rise to letter-by-letter (LBL) reading: while some researchers propose a prelexical, perceptual basis for the disorder, others postulate a postlexical, linguistic source for the problem. To examine the nature of the deficit underlying LBL reading, in three experiments, we compare the performance of seven LBL readers, matched control participants and one brain-damaged patient, OL, with no reading impairment. Experiment 1 revealed that the LBL patients were impaired, relative to the controls and to OL, on a same/different matching task using checkerboards of black and white squares. Given that the …