John S. Antrobus
I’m currently interested in brain recognition (BR) strategies that maximize information processing utility, i.e., maximize recognition speed and accuracy while minimizing processing cost. The brain minimizes perceptual computational load by continuously anticipating its future environment - freeing its resources for other jobs. Using a repetition priming procedure we have demonstrated how recognition is facilitated when it reoccurs in a recent context. We simulate these processes with leabra neural network models. We have just begun a behavioral study to distinguish 2 BR components: 1. Time-decay in synaptic threshold modifications in the perceptual pathway, 2. Context-based cortical-hippocampal top-down bias to that pathway. We are also modeling a BR trade-off: when to recognize a contextual cue that further degrades an already degraded target stimulus.
Antrobus, J.S., Sundaram, B.. Shono, Y., Pauli, W., Duff, M., Farahani, R., & Tarshish. C. (In preparation). Contextual bias in the service of rapid, accurate recognition: Implicit repetition priming with words.
Wamsley, E.J. & Antrobus, J.S. (2009). The expression of trace conditioning during non-REM
sleep and its relation to subjective experience. Neurobiology of Learning and Memory,
Wamsley, E.J. & Antrobus, J.A. (2009). Sleep mentation in REM and NREM: A neurocognitive perspective. In: Squire, L.R. (Ed.). Encyclopedia of Neuroscience, 8, 1031-1036. Oxford Univ. Pess.
Antrobus, J. and Bertini, M. (Eds.).(1992). The neuropsychology of sleep and
dreaming. Hillsdale, N.J.:Erlbaum Associates.
Antrobus, J. (1991). Dreaming: Cognitive processes during cortical activation and high afferent thresholds. Psychological Review, 98, 96-121.
Ellman, S., and Antrobus, J.S. (Eds.). (1991). The mind in sleep. (2nd edition). N. Y.
Antrobus, J. (1987). Cortical hemisphere asymmetry and sleep mentation. Psychological Review, 94, 359-368.