RPT Flashcards
Recurrent Processing Theory
Takes distinction between feedforward and recurrent (re-entrant) processing as fundamental to understanding consciousness. It is the neural definition of consciousness, making distinction between attention and consciousness, and pehomenal and access consciousness
Feedforward sweep
Unconscious, no integration on global level. Still active when anesthesized
Dichoptic masking
- abolishes contextual modulation, not feedforward signals
- In framework of importance of feedback processing, it supports the fact that the masked signal is not consciously seen. That’s only possible with feedback activity (consicous) and Feedforward always happens
Recurrent processing
Phenomenal consciousness = what leads to consciousness
- Perceptual integration
- Raw experience of consciousness
Global Ignition
Access consciousness, knowing, cognition
Important difference between GNWT; attention is seen as something fully independent to the feedforward/recurrent processing in the RPT
Attention equals depth of processing
- Acc to RPT, consciousness is equal to whether RP is occuring
- in GWNT, only the attended RP yields consciousness.
Matacontrast masking in go nogo task
When cue (go or no go) is masked, the RT is slowed down in the unconscious no go task. The RT in the go task is faster
The Frontal activation correlated with the unconscious cue, and that activation was functional. The more activation, the better the inhibition
Unconscious conflict detection
AFAP response to arrow going left or right, surrounding distractors make it a conflict. Seeing those conflicting arrows makes it more difficult
If those errors are masked, you see the same response, as well as frontal actiation.
Seen in more tasks, where your frontal area is active in unseen stimuli
Orthogonality
Cognition and attention is independent. Strong evidence provided by experiments where unconscious stimuli showed clear activation of frontal regions
Combining different cognitive functions is however a lotmore difficult to do unconsciously