Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Entire DC Network
Sharp Emergence Of Feature-Selective Sustained Activity Along The Dorsal Visual Pathway., Diego Mendoza-Halliday, Santiago Torres, Julio C Martinez-Trujillo
Sharp Emergence Of Feature-Selective Sustained Activity Along The Dorsal Visual Pathway., Diego Mendoza-Halliday, Santiago Torres, Julio C Martinez-Trujillo
Brain and Mind Institute Researchers' Publications
Sustained activity encoding visual working memory representations has been observed in several cortical areas of primates. Where along the visual pathways this activity emerges remains unknown. Here we show in macaques that sustained spiking activity encoding memorized visual motion directions is absent in direction-selective neurons in early visual area middle temporal (MT). However, it is robustly present immediately downstream, in multimodal association area medial superior temporal (MST), as well as and in the lateral prefrontal cortex (LPFC). This sharp emergence of sustained activity along the dorsal visual pathway suggests a functional boundary between early visual areas, which encode sensory inputs, …
Failure To Replicate Retrocausal Recall, Imants Barušs, Vanille Rabier
Failure To Replicate Retrocausal Recall, Imants Barušs, Vanille Rabier
Psychology
In two temporally inverted memory experiments, Daryl Bem found that participants had better recall for words that were practiced after the recall task than for control words that were not practiced after the recall task. We attempted to replicate the second of Bem’s two experiments with the addition of a personality measure. After completing the Six Factor Personality Questionnaire, participants (n = 102) interacted with a computer on which they were shown 48 nouns, one at a time, then asked to type as many of the words as they could recall, and then asked to practice a random selection …
Further Evidence Of The Comparative Memorability Of Alliterative Expressions In Second Language Learning, Frank Boers, Seth Lindstromberg, Stuart Webb
Further Evidence Of The Comparative Memorability Of Alliterative Expressions In Second Language Learning, Frank Boers, Seth Lindstromberg, Stuart Webb
Education Publications
Previous research has furnished evidence that alliterative expressions (e.g. a slippery slope) are comparatively memorable for second language learners, at least when these expressions are attended to as decontextualized items (Lindstromberg and Boers, 2008a; Boers et al., 2012). The present study investigates whether alliteration renders lexical phrases comparatively memorable also when these phrases are encountered in texts read primarily with a focus on content. Fifty-four EFL students read a text adapted so as to include five instances of 12 idiomatic expressions. The results of surprise post-tests suggest that the alliterative phrases among these target expressions left significantly stronger memory …
Bilateral Saccadic Deficits Following Large And Reversible Inactivation Of Unilateral Frontal Eye Field., Tyler R Peel, Kevin Johnston, Stephen G Lomber, Brian D Corneil
Bilateral Saccadic Deficits Following Large And Reversible Inactivation Of Unilateral Frontal Eye Field., Tyler R Peel, Kevin Johnston, Stephen G Lomber, Brian D Corneil
Brain and Mind Institute Researchers' Publications
Inactivation permits direct assessment of the functional contribution of a given brain area to behavior. Previous inactivation studies of the frontal eye field (FEF) have either used large permanent ablations or reversible pharmacological techniques that only inactivate a small volume of tissue. Here we evaluated the impact of large, yet reversible, FEF inactivation on visually guided, delayed, and memory-guided saccades, using cryoloops implanted in the arcuate sulcus. While FEF inactivation produced the expected triad of contralateral saccadic deficits (increased reaction time, decreased accuracy and peak velocity) and performance errors (neglect or misdirected saccades), we also found consistent increases in reaction …
Rule-Based Category Learning In Children: The Role Of Age And Executive Functioning., Rahel Rabi, John Paul Minda
Rule-Based Category Learning In Children: The Role Of Age And Executive Functioning., Rahel Rabi, John Paul Minda
Brain and Mind Institute Researchers' Publications
Rule-based category learning was examined in 4-11 year-olds and adults. Participants were asked to learn a set of novel perceptual categories in a classification learning task. Categorization performance improved with age, with younger children showing the strongest rule-based deficit relative to older children and adults. Model-based analyses provided insight regarding the type of strategy being used to solve the categorization task, demonstrating that the use of the task appropriate strategy increased with age. When children and adults who identified the correct categorization rule were compared, the performance deficit was no longer evident. Executive functions were also measured. While both working …