title: The effects of road commentary training on novice drivers' visual search behaviour: A preliminary investigation

authors: Cantwell, Stephen James

subjects: road safety

abstract: One of the major challenges facing novice drivers seems to be adequately scanning, detecting, and responding to hazards which present during the course of everyday driving; a process that involves ‘reading the road’ and modifying driver behaviour accordingly. Previous studies have indicated that inexperienced drivers tend to utilise only a small proportion of the visual field when driving, and this limited visual search behaviour may play a significant role in the over-representation of young novice drivers’ involvement in crashes. This deficiency in visual search is especially evidenced through crashes occurring at intersections, or other densely populated road environments. More recently, road commentary has become of interest within a number of driver education initiatives, and several current studies have indicated that road commentary indeed improves drivers’ performance in hazard perception tasks. However, relatively little is known about commentaries influence on the underlying cognitive mechanisms responsible for enhanced situation awareness or hazard awareness, and whether such improvements generalize to a broader range of road scenarios. Using hazard perception and eye-tracking measures, we started to examine how road commentary could influence the way drivers visually accrue and process essential road information. First, our data confirmed that commentary training significantly increased the percentage of hazards identified. But additionally, preliminary eye movement data indicated that road commentary may have influenced visual search behaviour of the participants by ‘prompting’ them to allocate extra visual attention capacity to hazard rich areas, as evidenced by an increase of their fixation clusters across the visual field. This could help increase situation awareness, and convert to safer driving behaviour and reduced risk-taking.

text: The effects of road commentary training on novice drivers' visual search behaviour: A preliminary investigation One of the major challenges facing novice drivers seems to be adequately scanning, detecting, and responding to hazards which present during the course of everyday driving; a process that involves ‘reading the road’ and modifying driver behaviour accordingly. Previous studies have indicated that inexperienced drivers tend to utilise only a small proportion of the visual field when driving, and this limited visual search behaviour may play a significant role in the over-representation of young novice drivers’ involvement in crashes. This deficiency in visual search is especially evidenced through crashes occurring at intersections, or other densely populated road environments. More recently, road commentary has become of interest within a number of driver education initiatives, and several current studies have indicated that road commentary indeed improves drivers’ performance in hazard perception tasks. However, relatively little is known about commentaries influence on the underlying cognitive mechanisms responsible for enhanced situation awareness or hazard awareness, and whether such improvements generalize to a broader range of road scenarios. Using hazard perception and eye-tracking measures, we started to examine how road commentary could influence the way drivers visually accrue and process essential road information. First, our data confirmed that commentary training significantly increased the percentage of hazards identified. But additionally, preliminary eye movement data indicated that road commentary may have influenced visual search behaviour of the participants by ‘prompting’ them to allocate extra visual attention capacity to hazard rich areas, as evidenced by an increase of their fixation clusters across the visual field. This could help increase situation awareness, and convert to safer driving behaviour and reduced risk-taking.

year: 2013

title: Detecting sequential structure

authors: Nevill-Manning, Craig G.

subjects: PBD

abstract: Programming by demonstration requires detection and analysis of sequential patterns in a user’s input, and the synthesis of an appropriate structural model that can be used for prediction. This paper describes SEQUITUR, a scheme for inducing a structural description of a sequence from a single example. SEQUITUR integrates several different inference techniques: identification of lexical subsequences or vocabulary elements, hierarchical structuring of such subsequences, identification of elements that have equivalent usage patterns, inference of programming constructs such as looping and branching, generalisation by unifying grammar rules, and the detection of procedural substructure., Although SEQUITUR operates with abstract sequences, a number of concrete illustrations are provided.

text: Detecting sequential structure Programming by demonstration requires detection and analysis of sequential patterns in a user’s input, and the synthesis of an appropriate structural model that can be used for prediction. This paper describes SEQUITUR, a scheme for inducing a structural description of a sequence from a single example. SEQUITUR integrates several different inference techniques: identification of lexical subsequences or vocabulary elements, hierarchical structuring of such subsequences, identification of elements that have equivalent usage patterns, inference of programming constructs such as looping and branching, generalisation by unifying grammar rules, and the detection of procedural substructure., Although SEQUITUR operates with abstract sequences, a number of concrete illustrations are provided.

year: 1995

title: Speaking the unspoken: Maori experiences of racism in New Zealand sport

authors: Hippolite, Holly Raima

subjects: Maori

abstract: This research explores how being Maori influences Maori participants’ sport experiences and offers a critical Maori perspective on New Zealand sport. Ten experienced Maori sport participants were interviewed using Kaupapa Maori Research Methods which involved research performed by Maori, about Maori being Maori. This research grew out of discussions with Maori participants and explores their experiences as athletes, coaches, administrators and spectators, focusing on their interactions with Pakeha in Pakeha-dominated sport. Their experiences demonstrate personal, cultural and institutional racism in New Zealand sport and indicate how the power differentials in society impact on the ability of Maori to practice important cultural values in Pakeha-dominated contexts. I argue that racism is a factor affecting the relationships of Maori with Pakeha in key functionary positions in sport and identify a culture of denial that operates to marginalise discussions about racism generally. These participants’ experiences reflect cultural incapacity and blindness (Cross, Bazron, Dennis & Isaacs, 1989) by the dominant culture which have negative effects on the Maori participants including decisions to opt out of sport, feelings of hurt and frustration, a reduction in their commitment to national identity and a general sense that they are not considered as equals. The conclusion considers what is needed for New Zealand sport to become fully culturally inclusive; a situation desired by the participants and which has the potential to benefit everyone in sport.

text: Speaking the unspoken: Maori experiences of racism in New Zealand sport This research explores how being Maori influences Maori participants’ sport experiences and offers a critical Maori perspective on New Zealand sport. Ten experienced Maori sport participants were interviewed using Kaupapa Maori Research Methods which involved research performed by Maori, about Maori being Maori. This research grew out of discussions with Maori participants and explores their experiences as athletes, coaches, administrators and spectators, focusing on their interactions with Pakeha in Pakeha-dominated sport. Their experiences demonstrate personal, cultural and institutional racism in New Zealand sport and indicate how the power differentials in society impact on the ability of Maori to practice important cultural values in Pakeha-dominated contexts. I argue that racism is a factor affecting the relationships of Maori with Pakeha in key functionary positions in sport and identify a culture of denial that operates to marginalise discussions about racism generally. These participants’ experiences reflect cultural incapacity and blindness (Cross, Bazron, Dennis & Isaacs, 1989) by the dominant culture which have negative effects on the Maori participants including decisions to opt out of sport, feelings of hurt and frustration, a reduction in their commitment to national identity and a general sense that they are not considered as equals. The conclusion considers what is needed for New Zealand sport to become fully culturally inclusive; a situation desired by the participants and which has the potential to benefit everyone in sport.

year: 2010