Klein, Raymond M.
Permanent URI for this collectionhttps://hdl.handle.net/10222/27771
Raymond M Klein
Professor
Email: Ray.Klein@dal.ca
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Item Open Access The Hebb Legacy(Canadian Psychological Association, 1999) Klein, RaymondItem Open Access What a Simple Letter-Detection Task Can Tell Us About Cognitive Processes in Reading(Psychological Science, 2016) Klein, Raymond; Saint-Aubin, JeanUnderstanding reading is a central issue for psychology, with major societal implications. Over the past five decades, a simple letter-detection task has been used as a window on the psycholinguistic processes involved in reading. When readers are asked to read a text for comprehension while marking with a pencil all instances of a target letter, they miss some of the letters in a systematic way known as the missing-letter effect. In the current article, we review evidence from studies that have emphasized neuroimaging, eye movement, rapid serial visual presentation, and auditory passages. As we review, the missing-letter effect captures a wide variety of cognitive processes, including lexical activation, attention, and extraction of phrase structure. To account for the large set of findings generated by studies of the missing-letter effect, we advanced an attentional-disengagement model that is rooted in how attention is allocated to and disengaged from lexical items during reading, which we have recently shown applies equally to listening.Item Open Access There is a Missing-Phoneme Effect in Aural Prose Comprehension(SAGE, 2016-05-06) Klein, Raymond; Saint-Aubin, Jean; Babineau, Mireille; Christie, John; Gow, DavidWhen participants search for a target letter while reading, they make more omissions if the target letter is embedded in frequent function words than in less frequent content words. This phenomenon, called the missing-letter effect, has been considered a window on the cognitive mechanisms involved in the visual processing of written language. In the present study, one group of participants read two texts for comprehension while searching for a target letter and another group listened to the narration of the same two texts while listening for the corresponding target letter's phoneme. The ubiquitous missing-letter effect was replicated and extended to a "missing-phoneme effect". Item-based correlations between the letter and the phoneme detection tasks were high leading us to conclude that both procedures reflect cognitive processes that reading and listening have in common which are rooted in psycholinguistically driven allocation of attention.Item Open Access Repeated measurement of the components of attention of older adults using the two versions of the Attention Network Test: Stability, isolability, robustness, and reliability(Frontiers Research Foundation, 2011-15) Ishigami, Yoko; Klein, Raymond M.No abstract available.Item Open Access Speed impairs attending on the left: Comparing attentional asymmetries for neglect patients in speeded and unspeeded cueing tasks(Frontiers Research Foundation, 2012-21) Dukewich, Kristie R.; Eskes, Gail A.; Lawrence, Michael A.; MacIsaac, Mary-Beth; Phillips, Stephen J.; Klein, Raymond M.No abstract available.