Biomedical subjects

G Doherty-Sneddon

Publications and source records attributed to G Doherty-Sneddon.

5 recordsLinked to original sources

PubMed2005

Gaze aversion: a response to cognitive or social difficulty?

When asked questions, adults and children often avert their gaze at certain points within the interaction, especially when questions are difficult (Doherty-Sneddon, Bruce, Bonner, Longbotham, & Doyle, 2002; Glenberg, Schroeder, & Robertson, 1998). Gaze aversion may be a way of managing the cognitive load associated with the processing of visual environmental information, or it may serve to alleviate a negative social-emotional experience, such as the self-consciousness associated with, for example, a fear of failure. In the present study, thirty-six 8-year-olds were questioned either face to face or across a live video link. Questions varied in type (arithmetic, verbal reasoning, and autobiographical and episodic memory) and in difficulty. Children averted their gaze more during face-to-face questioning than during video-mediated questioning; however, question difficulty had a very strong influence on aversion in both interview conditions. It is concluded that although social factors play a role in children's gaze aversion during pedagogical question-answer sequences, the primary function of averting gaze is to manage the cognitive load involved in the processing of environmental information.

Affect↗

PubMed2002

Development of gaze aversion as disengagement from visual information.

Older children, but not younger children, were found to look away more from the face of an interlocutor when answering difficult as opposed to easy questions. Similar results were found in earlier work with adults, who often avert their gaze during cognitively difficult tasks (A. M. Glenberg, J. L. Schroeder, & D. A. Robertson, 1998). Twenty-five 8-year-olds and 26 5-year-olds answered verbal reasoning and arithmetic questions of varying difficulty. The older children increased gaze aversion from the face of the adult questioner in response to both difficult verbal reasoning questions and difficult arithmetic questions. In contrast, younger children (5-year-olds) responded less consistently to cognitive difficulty. It is concluded that adultlike patterns of gaze aversion in response to cognitive difficulty are certainly acquired by 8 years of age. The implications of appropriate gaze aversion for children's management of cognitive processing resources are considered.

Child↗

PubMed2001

Cognitive demands of face monitoring: evidence for visuospatial overload.

Young children perform difficult communication tasks better face to face than when they cannot see one another (e.g., Doherty-Sneddon & Kent, 1996). However, in recent studies, it was found that children aged 6 and 10 years, describing abstract shapes, showed evidence of face-to-face interference rather than facilitation. For some communication tasks, access to visual signals (such as facial expression and eye gaze) may hinder rather than help children's communication. In new research we have pursued this interference effect. Five studies are described with adults and 10- and 6-year-old participants. It was found that looking at a face interfered with children's abilities to listen to descriptions of abstract shapes. Children also performed visuospatial memory tasks worse when they looked at someone's face prior to responding than when they looked at a visuospatial pattern or at the floor. It was concluded that performance on certain tasks was hindered by monitoring another person's face. It is suggested that processing of visual communication signals shares certain processing resources with the processing of other visuospatial information.

Adult↗

PubMed1997

Limited visual control of the intelligibility of speech in face-to-face dialogue.

Speakers are thought to articulate individual words in running speech less carefully whenever additional nonacoustic information can help listeners recognize what is said (Fowler & Housum, 1987; Lieberman, 1963). Comparing single words excerpted from spontaneous dialogues and control tokens of the same words read by the same speakers in lists, Experiment 1 yielded a significant but general effect of visual context: Tokens introducing 71 new entities in dialogues in which participants could see one another's faces were more degraded (less intelligible to 54 naive listeners) than were tokens of the same words from dialogues with sight lines blocked. Loss of clarity was not keyed to moment-to-moment visual behavior. Subjects with clear sight lines looked at each other too rarely to account for the observed effect. Experiment 2 revealed that tokens of 60 words uttered while subjects were looking at each other were significantly less degraded (in length and in intelligibility to 72 subjects) vis-à-vis controls than were spontaneous tokens of the same words produced when subjects were looking elsewhere. Intelligibility loss was mitigated only when listeners looked at speakers. Two separate visual effects are discussed, one of the global availability and the other of the local use of the interlocutor's face.

Adult↗

PubMed1996

Visual signals and the communication abilities of children.

The communication abilities of children of differing ages (4-, 6-, and 11 years) were compared. The children performed two communication tasks and were interviewed in both face-to-face and audio-only contexts. While older children adapted to the loss of visual signals the younger age groups did not and their communication suffered. It appears that a significant amount of information which young children transmit occurs in a non-verbal format, and that visual signals are less demanding for young listeners. Such findings have implications for professionals working with young children since they show the importance of addressing both the child's visual signals and one's own.

Age Factors↗