lecture 10 Flashcards
Three big headaches for hierarchical theories of motor control.
Accounting for our biological bodies.
Not relying so heavily on metal representations of our actions and external world (black box approach).
How detailed/specific do motor programs need to be?
Distribution of Cognitive Processes
Our cognitive processes are distributed across brain, body environment. - Our brain is only one part of the cognition as it is inside our whole body.
embodied cognition
embodied cognition emphasizes the role of the physical body, sensory-motor experiences, and environmental interactions in shaping cognitive processes.
limitation of the EC
Ignores our different type of senses. Also ignores the receptors inside of our body. Emphasising the role of sensory-motor experience.
positive of EC
Predicting future states based on our bodily interactions with the environment. By incorporating sensory information and past experiences.
what happens in action preperation?
- Monitoring environment (sensation.
- Postural preparation
- The preparation of an upcoming sequence of movements
- Preparation of limb movement characteristics.
- The preparation of rhythm when a skill provides it.
factors that change how fast we react.
Stimulus - more= slower
Number of choice - more=slower
type of stimulus
how obvious the stimulus is to you
age
predictive processing
Comparing the predicted future to what we currently perceive.
Our lazy brains make predictions, take shortcuts and gamble on expected outcomes.
how does PP help with effective neuroscience.
Idea is that some things need to be acted on fast with a lot to process up the chains. The brain will start making predictions or guessing. It will be looking for ques. E.g. in a goalie observing where the shooter is looking.
exteroception
gives us information about things happening exterior to us.
proprioception
how we perceive the world and how we are going to act on it.
Active inference
Humans move in order to perceive better. As movement sharpens the ability to perceive the things around us.
Top-down expectations compared to actual input
The process of active inference involves generating predictions or expectations about incoming sensory information based on prior knowledge and experience. These top-down expectations are then compared to the actual sensory input received from the environment. Any discrepancies between the expected and actual input can lead to adjustments in perception and behavior.
how does movement Sharpen Perception
Through movement, individuals can enhance their perception of the external world. By actively engaging with their environment and experiencing sensory feedback through movement, individuals can refine their proprioceptive abilities, leading to improved sensitivity and accuracy in perceiving the surrounding world.
when do we upweigh sensory input?
We will upweight the significance of sensory information as we are not sure about the environment we are in.
For example when balanced is challenged we upweight certain sensory input to maintain postural control.