Selective memory disrupted in intra-modal dual-task encoding conditions
| Autor: | Alan D. Castel, Shawn T. Schwartz, Alexander L. M. Siegel |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
genetic structures
1.2 Psychological and socioeconomic processes Experimental and Cognitive Psychology ENCODE behavioral disciplines and activities Basic Behavioral and Social Science 050105 experimental psychology Article Task (project management) 03 medical and health sciences 0302 clinical medicine Arts and Humanities (miscellaneous) Memory Clinical Research Underpinning research Encoding (memory) Cognitive resource theory Behavioral and Social Science Humans Spatial Psychology 0501 psychology and cognitive sciences Attention Selectivity Control (linguistics) Eye Disease and Disorders of Vision Aged Modality (human–computer interaction) 05 social sciences Modality Neurosciences Cognition Experimental Psychology DUAL (cognitive architecture) Neuropsychology and Physiological Psychology Mental Recall Mental health Cognitive Sciences Visual psychological phenomena and processes 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Memory & cognition, vol 49, iss 7 Mem Cognit |
| Popis: | Given natural memory limitations, people can generally attend to and remember high-value over low-value information even when cognitive resources are depleted in older age and under divided attention during encoding, representing an important form of cognitive control. In the current study, we examined whether tasks requiring overlapping processing resources may impair the ability to selectively encode information in dual-task conditions. Participants in the divided-attention conditions of Experiment 1 completed auditory tone-distractor tasks that required them to discriminate between tones of different pitches (audio-nonspatial) or auditory channels (audio-spatial), while studying items in different locations in a grid (visual-spatial) differing in reward value. Results indicated that, while reducing overall memory accuracy, neither cross-modal auditory distractor task influenced participants’ ability to selectively encode high-value items relative to a full attention condition, suggesting maintained cognitive control. Participants in Experiment 2 studied the same important visual-spatial information while completing demanding color (visual-nonspatial) or pattern (visual-spatial) discrimination tasks during study. While the cross-modal visual-nonspatial task did not influence memory selectivity, the intra-modal visual-spatial secondary task eliminated participants’ sensitivity to item value. These results add novel evidence of conditions of impaired cognitive control, suggesting that the effectiveness of top-down, selective encoding processes is attenuated when concurrent tasks rely on overlapping processing resources. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|