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Does neural computation feel like something?

Albert Gidon1, Jaan Aru2, Matthew E Larkum1,3

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Summary
This summary is machine-generated.

Artificial neural networks (ANNs) mimic human brains, raising consciousness questions. This study challenges the idea that consciousness arises solely from computation, even in ANNs.

Keywords:
computational functionalismcomputer simulationconsciousness simulationcounterfactual erasercounterfactualsfunctionalism

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Area of Science:

  • Neuroscience
  • Artificial Intelligence
  • Philosophy of Mind

Background:

  • Artificial neural networks (ANNs) increasingly exhibit human-like behaviors.
  • The possibility of machine consciousness, stemming from computational processes, is a growing concern.
  • Computational functionalism posits that consciousness emerges from specific computations, regardless of substrate (biological or artificial).

Purpose of the Study:

  • To investigate the computational functionalist view of consciousness.
  • To determine if consciousness is solely dependent on the correct computations occurring.
  • To explore the relationship between neural activity, computation, and consciousness in artificial systems.

Main Methods:

  • Simulated a simple computation within an artificial neural network's "brain".
  • Recorded neural activity during visual stimulus presentation.
  • Replayed recorded signals to degrade computation by eliminating counterfactual activity patterns.

Main Results:

  • Identified a specific scenario where replaying signals degraded computation without altering ongoing neural activity.
  • Demonstrated that erasing alternative computational pathways did not affect the system's response to stimuli.
  • Observed a dissociation between ongoing neural dynamics and the underlying computational structure.

Conclusions:

  • The findings challenge the direct link between computation and consciousness proposed by functionalism.
  • Ongoing neural activity may not solely determine the computational processes underlying consciousness.
  • This research suggests consciousness may not simply emerge from the right computations in artificial or biological brains.