Biomedical subjects

J Tloczynski

Publications and source records attributed to J Tloczynski.

4 recordsLinked to original sources

PubMed2000

Perception of visual illusions by novice and longer-term meditators.

Undergraduate volunteers were divided into Control (n= 18) and Novice Meditators (n = 8). Residents of an American Zen monastery who volunteered as subjects, having 1 year or more experience in meditation, formed a Longer-term Meditation group. All subjects were tested over five trials on the Poggendorff and Müller-Lyer illusions and completed the Taylor Manifest Anxiety Scale and the Beck Depression Inventory. Significant mean differences were found only for algebraic errors on the Poggendorff illusion, and significant decrement in illusion was noted for all subjects. A significant interaction was also found as the Longer-term Meditators showed less initial illusion and less dramatic decrement over five trials than the other groups. Finally, Longer-term Meditators exhibited significantly less anxiety and depression than the other two groups.

Adult↗

PubMed1994

A preliminary study of opening-up meditation college adjustment, and self-actualization.

The effects of opening-up meditation on college adjustment and self-actualization were examined with 45 subjects who were divided into groups for opening-up meditation, relaxation, and control using scores on the Anxiety Scale of the College Adjustment Scales. Subjects also completed the Personal Orientation Inventory. 1 hr. of training for the meditation and relaxation groups was given and 20 min./day practice requested. After 2 and 4 wk. anxiety and family problem scores significantly increased for the meditation group as did scores on the Feeling Reactivity Scale. Analysis was compromised by high dropout (leaving 3, 4, and 3 subjects, respectively, in the meditation, relaxation, and control groups).

Adaptation, Psychological↗

PubMed1993

Attention and visual dominance in motor learning.

Two experiments examined the role of attention in visual dominance during motor learning. On the movement task 10 acquisition trials were given; each included a movement presentation and a blindfolded reproduction. After completion of acquisition trials and a 5-min. interval, subjects were given 5 retention trials with reproduction attempts only. In Exp. 1, subjects receiving only kinesthetic information during movement presentation reproduced criterion movement length more accurately than subjects receiving visual and kinesthetic information. Other subjects, presented both visual and kinesthetic stimuli for the movement, were given instructions to ignore vision and focus on kinesthesis. These subjects exhibited no effects of visual dominance in reproductions. In Exp. 2, subjects were presented visual and kinesthetic stimuli during half of the movement presentations and only kinesthetic stimuli during the other half. They did not exhibit the effects of visual dominance in reproductions. Such effects in motor learning may be modified by manipulation of attention or an alternating presentation of specific sensory stimuli.

Adult↗

PubMed1992

Visual dominance in a lateral plane motor learning task.

Visual dominance was investigated in a motor learning task with the criterion movement being in the lateral plane of the body. The criterion movement was a 10-in. abduction of the arm. All subjects received four presentation trials for the criterion movement in each of the following conditions: dominant rotated arm, dominant unrotated arm, nondominant rotated arm, and nondominant unrotated arm. Three independent groups of 10 college-age subjects differed according to sensory stimuli given during presentation trials. The Kinesthetic group was blindfolded for presentation trials. The Visual and Kinesthetic group was unblindfolded for presentation trials. The Alternating group was blindfolded on half of the presentation trials and unblindfolded on the other half. All subjects carried out five blindfolded reproduction trials for each of the four conditions. Absolute error for the length of the reproduced movements was measured and no significant difference between groups was found. This suggests that visual dominance is reduced in movements outside the frontal plane when focal vision is not used. Planned comparison testing indicated the Alternating group was significantly more accurate than the Visual and Kinesthetic group.

Adult↗