Sean Yue
@seanyue.bsky.social
Trying to understand Ecological Psychology | KCL BSc Psych | Own views | https://linktr.ee/seanyue
This first experiment showed how movement kinematics might be constrained by information sources that specify TwS affordances when moving liquid-filled containers.
In another post, I'll cover the study's second experiment which tested affordance perception without individuals performing the action.
In another post, I'll cover the study's second experiment which tested affordance perception without individuals performing the action.
March 24, 2025 at 4:09 PM
This first experiment showed how movement kinematics might be constrained by information sources that specify TwS affordances when moving liquid-filled containers.
In another post, I'll cover the study's second experiment which tested affordance perception without individuals performing the action.
In another post, I'll cover the study's second experiment which tested affordance perception without individuals performing the action.
Similarly, the difference in how smooth spillable containers were transferred (compared to unspillable ones) decreased as the containers got narrower, but only when the water level was near the rim.
When there was a large gap between the water level and rim, the effect of diameter was diminished.
When there was a large gap between the water level and rim, the effect of diameter was diminished.
March 24, 2025 at 4:09 PM
Similarly, the difference in how smooth spillable containers were transferred (compared to unspillable ones) decreased as the containers got narrower, but only when the water level was near the rim.
When there was a large gap between the water level and rim, the effect of diameter was diminished.
When there was a large gap between the water level and rim, the effect of diameter was diminished.
Meanwhile, movement time and smoothness were influenced by both h and d. Here, d's effect was only apparent for low h values.
In other words, movement time differences only varied with the container's narrowness when the water level was close to (and not far from) the container's rim.
In other words, movement time differences only varied with the container's narrowness when the water level was close to (and not far from) the container's rim.
March 24, 2025 at 4:09 PM
Meanwhile, movement time and smoothness were influenced by both h and d. Here, d's effect was only apparent for low h values.
In other words, movement time differences only varied with the container's narrowness when the water level was close to (and not far from) the container's rim.
In other words, movement time differences only varied with the container's narrowness when the water level was close to (and not far from) the container's rim.
Furthermore, TwS got easier as h increased (water surface further from container rim) and as d decreased (container is narrower).
Specifically, the difference in peak velocity and first peak acceleration between spillable vs. unspillable containers increased with h but was unaffected by d.
Specifically, the difference in peak velocity and first peak acceleration between spillable vs. unspillable containers increased with h but was unaffected by d.
March 24, 2025 at 4:09 PM
Furthermore, TwS got easier as h increased (water surface further from container rim) and as d decreased (container is narrower).
Specifically, the difference in peak velocity and first peak acceleration between spillable vs. unspillable containers increased with h but was unaffected by d.
Specifically, the difference in peak velocity and first peak acceleration between spillable vs. unspillable containers increased with h but was unaffected by d.
The different h and d values yielded different θ values. Results showed that as θ increased, participants:
- Moved faster
- Moved the container with a larger initial acceleration
- Showed smoother movements
This shows that as θ increases, participants feel that the liquid is less likely to spill.
- Moved faster
- Moved the container with a larger initial acceleration
- Showed smoother movements
This shows that as θ increases, participants feel that the liquid is less likely to spill.
March 24, 2025 at 4:09 PM
The different h and d values yielded different θ values. Results showed that as θ increased, participants:
- Moved faster
- Moved the container with a larger initial acceleration
- Showed smoother movements
This shows that as θ increases, participants feel that the liquid is less likely to spill.
- Moved faster
- Moved the container with a larger initial acceleration
- Showed smoother movements
This shows that as θ increases, participants feel that the liquid is less likely to spill.
To investigate the informational variables involved in the affordance for TwS, Xu, Wang & Pan (2023) recorded participants' movement differences when transferring spillable vs. unspillable containers.
Then, they analysed how these movement differences varied with different h and d values.
Then, they analysed how these movement differences varied with different h and d values.
March 24, 2025 at 4:09 PM
To investigate the informational variables involved in the affordance for TwS, Xu, Wang & Pan (2023) recorded participants' movement differences when transferring spillable vs. unspillable containers.
Then, they analysed how these movement differences varied with different h and d values.
Then, they analysed how these movement differences varied with different h and d values.
The critical angle θ is further specified by the distance between container rim and liquid surface (h) and the container's diameter (d) using the equation tanθ = 2h/d.
It is argued that visually detecting the information variables h and d allows individuals to perceive the affordance for TwS.
It is argued that visually detecting the information variables h and d allows individuals to perceive the affordance for TwS.
March 24, 2025 at 4:09 PM
The critical angle θ is further specified by the distance between container rim and liquid surface (h) and the container's diameter (d) using the equation tanθ = 2h/d.
It is argued that visually detecting the information variables h and d allows individuals to perceive the affordance for TwS.
It is argued that visually detecting the information variables h and d allows individuals to perceive the affordance for TwS.
To successfully control this action, one must perceive the possibility of transferring the container without spilling, i.e., the container's affordance for transfer without spilling (TwS).
Here, this affordance might be defined by the critical angle (θ) that determines when spilling would occur.
Here, this affordance might be defined by the critical angle (θ) that determines when spilling would occur.
March 24, 2025 at 4:09 PM
To successfully control this action, one must perceive the possibility of transferring the container without spilling, i.e., the container's affordance for transfer without spilling (TwS).
Here, this affordance might be defined by the critical angle (θ) that determines when spilling would occur.
Here, this affordance might be defined by the critical angle (θ) that determines when spilling would occur.