Search PubMed⌕ Search

Biomedical subjects

M L Berg

Publications and source records attributed to M L Berg.

2 recordsLinked to original sources
PubMed2000

Relationship of temperament and perceptions of nonshared environment in bulimia nervosa.

OBJECTIVE: Examine the relationship between temperament variables and perceptions of nonshared environment as they relate to bulimia nervosa. METHOD: Fifty-seven adult women completed the Tridimensional Personality Questionnaire and the Sibling Inventory of Differential Experience. These measures provided assessments of frequently studied temperament traits as well as nonshared environmental factors believed to be associated with psychopathology and temperament. RESULTS: Bulimic subjects showed higher levels of harm avoidance than did control subjects. Also, bulimic subjects perceived their fathers as less affectionate and more controlling than control subjects. Among bulimics, high levels of harm avoidance were associated with high levels of maternal affection and low levels of maternal control. Similarly, among bulimics, high levels of novelty seeking were more likely to be associated with decreased paternal control than was true for control subjects. DISCUSSION: These findings highlight the possible relationship between particular temperamental variables and associated family responses in bulimia nervosa.

Adolescent↗
PubMed1999

Saccadic latency during perceptual processing and sequence learning.

The difference between simple and choice manual reaction time (RT) has been taken to be a measure of the time necessary for various cognitive operations. In contrast, simple and choice saccadic latencies (SL - time elapsing from stimulus onset to saccade initiation) are quite similar, suggesting that such responses may be more automated. In the present investigation, SL and saccadic reaction times (SR - time elapsing from stimulus onset to saccade completion) were measured for targets appearing in the same and different locations, and to different ends of compound stimuli (big arrows) composed of small elements (little arrows) using either the global figure or the local elements as indicators of required saccade direction. In addition, measures of sequence learning were obtained behaviorally over iterative trials (decreases in response time) and with post-test interrogation. The results indicated that local response times were significantly slower than choice or global response times. Both global precedence and consistency effects were observed. Robust sequence learning was observed under the local condition, but only in the choice condition were all subjects able to recall the sequence correctly. These results are discussed in terms of proposed models of visual perception and saccade generation based on parallel processing.

Adolescent↗