PubMed · 7242757
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
D LaBerge. 1980. Unitization and automaticity in perception.. https://pubmed.ncbi.nlm.nih.gov/7242757/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
L. L. Jacoby, J. P. Toth, and A. P. Yonelinas (1993) advocated a process-dissociation procedure for estimating the contributions to task performance of consciously controlled (R) versus automatic (A) memory processes. The procedure relies on the strong assumption that memory-guided performance attributable to R is stochastically independent of that attributable to A. Violations of this independence assumption can produce artifactual dissociations between estimates of R and A. Such artifactual dissociations were obtained in a series of word-stem completion experiments: R increased with presentation duration, whereas A, paradoxically, decreased. Direct evidence for nonindependence was obtained from correlations between R and A in each of the experiments. These results suggest that the independence assumption was violated, and other applications of process dissociation should not be taken at face value without a thorough evaluation of independence.
A case is described of a policeman who assaulted the man he was arresting after receiving a concussive blow to the head. The defence argued he was suffering from post-traumatic automatism and after juries were unable to agree a verdict in two trials he was acquitted. Aspects of post-traumatic automatism in English law are described and theories of the neurology of concussion and aggressive behaviour are discussed. Guidelines are proposed for the evaluation of cases of post-traumatic automatism.
This study examined event-related potentials (ERPs) and behavioral measures, considered to be sensitive to the selective processing of black versus white letter and non-letter patterns, in a group of seventy-four randomly selected 6 to 8 year old children. Results demonstrated faster and more accurate behavioral performance on the experimental task for the letter than for the non-letter patterns. The ERP measures provided complementary information regarding this letter facilitation effect, indicating that the selective neural processing of letter as compared to non-letter patterns was present in the electrophysiological waveform within the initial 100-140 ms after stimulus presentation. Later ERP measures (200-260 and 500-600 ms post-stimulus) in response to the letter stimuli showed greater differences as a function of task relevance over the left than over the right hemisphere. The results from the present study indicate a remarkably early facilitative influence of stimulus type (letter versus non-letter patterns) on the luminance discrimination of these stimuli and are consistent with an overlap of linguistic and perceptual processing.