Matilda's boyfriend just sent her a beautiful teddy bear as a gift. According to the global workspace model, Matilda's awareness of how the teddy bear looks is most likely due to a. brain activity in her occipital lobe b. the fact that her corpus callosum has been cut c. the amount of REM sleep she got last night d. her being in an altered state of consciousness

Let's analyze each option and see which one is related to the global workspace model and conscious experience, taking into account different brain areas and their functions. a. Occipital lobe: This part of the brain is primarily responsible for visual processing. b. Corpus callosum cut: The corpus callosum is a bundle of nerve fibers that connects the left and right hemispheres of the brain. Cutting it can lead to a lack of communication between the two hemispheres. c. REM sleep: REM (Rapid Eye Movement) sleep is a phase of the sleep cycle where vivid dreams occur. This option is related to sleep, not to the visual processing of the teddy bear. d. Altered state of consciousness: This option refers to different levels of consciousness, which are not related to the specific process of visual perception of the teddy bear.

Now that we have identified the functions related to the given options, we can eliminate options unrelated to visual perception and the global workspace model: b. Cutting the corpus callosum is not related to the global workspace model or conscious visual experience. c. REM sleep is related to dreaming and not directly linked to visual perception of an object while awake. d. Altered states of consciousness do not directly explain how Matilda perceives the teddy bear's appearance.

The only option left is: a. Brain activity in her occipital lobe. The global workspace model involves different brain areas working together to create conscious experiences. In this case, the occipital lobe plays a crucial role in the visual perception of the teddy bear, contributing to the overall conscious experience Matilda has when she looks at her gift.