Dodging a Ball Approaching on a Collision Path
Effects of Eccentricity and Velocity
Bibliographic Data
| ID | 14983233 |
|---|---|
| Authors | François-Xavier Li (corresponding author), M Laurent |
| Year | 2001 |
| Volume | 13 |
| Issue | 1 |
| Pages | 31-47 |
| Publication date | 2001-01-01 |
| Open Access | No |
| Type | ARTICLE |
| Venue | Ecological Psychology (JOURNAL) |
| Journal identifiers | ISSN: 1040-7413 • E-ISSN: 1532-6969 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1207/s15326969eco1301_2 |
| OpenAlex | W2027737330 |
| Language | EN |
| Citations received | 3 |
| References cited | 40 |
Animals generally seek to avoid potentially harmful collisions. To perform successful avoidance, actors must correctly perceive the approach of an object and produce an appropriate motor response. Objects can approach from any part of the visual field, but avoidance skills are particularly relevant when threatening approaches occur in peripheral vision. This type of behavior has so far received little attention. Stoffregen and Riccio (1990) found that participants are sensitive to visually simulated impending collision at 0 or 90°. However, motor behavior produced in response to a real object approaching at various angles of eccentricity and at various speeds has not been investigated. In this study, participants were asked to dodge a ball approaching at 0, 20, 40, 60, or 80° of eccentricity. The ball was travelling at a constant speed of 1.0, 1.5, or 2.0 m/sec. Results showed that time to contact (TTC) at initiation of the avoidant response was similar for 0 and 20° but increased from 20 to 80°. Angle of approach had no effect on participants' movement velocity. Ball speed had an effect on both variables. TTC decreased and participants' movement velocity increased with eccentricity. No interaction was observed between ball speed and eccentricity. These results show that a successful motor response to impending physical collision is possible across a wide range of approach eccentricities. It appears that the speed of the approach was accurately perceived. The speed of avoidant responses was consistent, suggesting that intensity coupling, that is, a coupling of movement velocity with stimulus speed, was not affected by the eccentricity
Ball (mathematics · Cognitive psychology · Collision · Control theory (sociology · Eccentricity (behavior · Geometry · Mechanics · Optics · Physics · Simulation · Stimulus (psychology · Visual field · Communication · Computer Science · Mathematics · Motor Control and Adaptation · Psychology · Social Psychology · Tactile and Sensory Interactions · Visual perception and processing mechanisms · Artificial Intelligence
| Citations per year | 0.14 |
|---|---|
| Citation span | 2005 - 2011 (7) |
| Highly cited | No |