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Full-Text Articles in Cognition and Perception
Age And Context Dependency In Causal Learning, Katherine Danielle Lowry
Age And Context Dependency In Causal Learning, Katherine Danielle Lowry
Masters Theses & Specialist Projects
The ability to make associations between causal cues and outcomes is an important adaptive trait that allows us to properly prepare for an upcoming event. Encoding context is a type of associative processing; thus, context is also an important aspect of acquiring causal relationships. Context gives us additional information about how two events are related and allows us to be flexible in how we respond to causal cues. Research indicates that older adults exhibit an associative deficit as well as a deficit in contextual processing; therefore, it seems likely that these deficits are responsible for the deficit in older adults’ …
The Effects Of Aging On Associative Learning And Memory Retrieval In Causal Judgment, Jessica Parks Arnold
The Effects Of Aging On Associative Learning And Memory Retrieval In Causal Judgment, Jessica Parks Arnold
Masters Theses & Specialist Projects
Research has shown that detecting and judging causal relationships requires associative learning and memory. Retrospective revaluation of causal cues requires associative memory (Aitken, Larkin, & Dickinson, 2001) to bind multiple cues together and use these associations to retrieve unseen cues for revaluation of their associative value. The difficulty that older adults experience with respect to retrospective revaluation could occur because of their deficit in associative binding and retrieval (Mutter, Atchley, & Plumlee, 2012). Like retrospective revaluation, blocking requires cue – outcome associative learning, but unlike retrospective revaluation, blocking does not require binding two cues together nor does it require using …
Dynamic Tactile Information Is Sufficient For Precise Curvature Discrimination, Jacob R. Cheeseman
Dynamic Tactile Information Is Sufficient For Precise Curvature Discrimination, Jacob R. Cheeseman
Masters Theses & Specialist Projects
Our tactile perceptual experiences occur when we interact, actively and passively, with environmental objects and surfaces. Previous research has demonstrated that active manual exploration enhances the tactile perception of object shape. Nevertheless, the factors that contribute to this enhancement are not well understood. The present study evaluated the ability of 14 older adults to discriminate curved surfaces by actively feeling objects with a single index finger and by passively feeling objects that moved relative to a restrained finger. The curvature discrimination thresholds obtained for passive-dynamic touch were significantly lower than those that occurred during active-dynamic touch. This result demonstrates that …
The Electrophysiology Of Written Informal Language, Taylor S. Blaetz
The Electrophysiology Of Written Informal Language, Taylor S. Blaetz
Masters Theses & Specialist Projects
Language is an essential component of human behavior. It is ubiquitous, but more importantly, it is malleable and it is constantly changing. Part of the dynamic nature of informal communication is the introduction and adoption of new linguistic elements. Online communication provides a window into this informal public discourse; therefore, it may be useful for testing hypotheses about the processes underlying the acquisition and use of new words. The comprehension of informal language may lead to an understanding of how these new informal words are integrated into our mental lexicon. The current study was an electroencephalographic (EEG) investigation of the …
The Effects Of Age And Task On Visual Emotion Processing, Nicole Elaine Chambers
The Effects Of Age And Task On Visual Emotion Processing, Nicole Elaine Chambers
Masters Theses & Specialist Projects
Younger adults’ perception of and attention to facial stimuli are enhanced by positive and negative emotional expressions, with negativity leading to a greater benefit than positivity. Conversely, older adults demonstrate a positivity bias, devoting more attention to positive stimuli and less to negative. It is unclear if age differences in these attentional preferences emerge due to differences in how their perceptual systems respond to positive and negative stimuli. Emotional facial expressions elicit enhanced P1 and N170 components of visually-evoked event-related potentials (ERP) over posterior scalp regions associated with vision. The current study examined the extent to which angry and happy …