Tom N Tombaugh
Datos Biográficos
| ID | 7118978 |
|---|---|
| NOMBRE | Tom N Tombaugh |
| NOMBRES | Tom N |
| APELLIDO | Tombaugh |
| FIRMA | TOMBAUGH T N |
| AFILIACIONES | Carleton University |
| VERIFICADO | No |
| TOTAL DE OBRAS | 8 |
| TOTAL DE CITAS | 0 |
| TOTAL COMO AUTOR | 8 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1966 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2004 |
| ÍNDICE H | 0 |
Trail Making Test A and B
Normative data for the Trail Making Test (TMT) A and B are presented for 911 community-dwelling individuals aged 18-89 years. Performance on the TMT decreased with increasing age and lower levels of education. Based on these results, the norms were stratified for both age (11 groups) and education (2 levels). The current norms represent a more comprehensive set of norms than previously available and will increase the ability of neuropsychologists…
The Mini‐Mental State Examination
OBJECTIVE: The purpose of this paper is to provide a comprehensive review of information accumulated over the past 26 years regarding the psychometric properties and utility of the Mini-Mental State Examination (MMSE). PARTICIPANTS: The reviewed studies assessed a wide variety of subjects, ranging from cognitively intact community residents to those with severe cognitive impairment associated with various types of dementing illnesses. MAIN OUTCOM…
Four studies comparing the rey-osterrieth and taylor complex figures
The ability of the Rey-Osterrieth (R-O) and Taylor complex figures to produce equivalent scores on both constructional and memory tasks was examined in four studies. While the two figures yielded equivalent copy scores, the Taylor figure produced significantly higher scores on memory tests. This latter relationship was observed with three different retention conditions (immediate, 20-min, and 1-month recall), two types of learning paradigms (inci…
Effects of Different Volumes of Reward in a Free-Operant Procedure
Three different volumes (.01, .4 and .7 ml.) of a 32% sucrose concentration were employed in a free-operant bar-press study. In acquisition performance was a decreasing function of volume while in extinction greater persistence of performance was obtained for the .4 and .7 groups than for the .01 group. The extinction results were contrasted with those obtained in discrete-trial experiments which had employed a comparable range of volumes and num…
Another Failure to Obtain Negative Incentive Contrast following Reductions in Sucrose Reward
The effects of reductions in volume only, concentration only, and volume plus concentration of sucrose rewards were studied in a discrete-trial (retractable bar) situation. There was no evidence of abrupt behavioral decrements or negative contrast effects associated with any type of reward reduction. The present results are in opposition to those obtained following variations in solid food rewards. These findings suggest that the effects of sucro…
Overtraining Extinction Effect Using a Free-Operant Procedure
The effects of five levels of training (210, 490, 1470, 2450, 3430 reinforced responses) on extinction performance were investigated. A free-operant bar-press paradigm was employed. A continuous reinforcement schedule was used with .12 ml. of 64% sucrose. Number of bar-presses and duration of time to reach a 1-min. non-response criterion showed that resistance to extinction was an increasing function of the number of reinforcements during trainin…
Effects of Delay of Reinforcement and Cues upon Acquisition and Extinction Performance
The effects of pairing cues with the termination of a delay of reinforcement interval were studied in a discrete-trial barpress situation. In acquisition, one group of rats received immediate reinforcement while a second group received a 10-sec. delay. Light cues were paired with the presentation of reinforcement for both groups. In extinction each group was split and half the Ss received the cues and half the Ss did not. Resistance to extinction…
Resistance to Extinction as a Function of the Interaction between Training and Extinction Delays
Four delay conditions (0, 5, 10, and 20 sec.) were used in the acquisition of a runway response. Performance was a decreasing function of the duration of the delay interval. In extinction, with half of the Ss from each group extinguished under the same goalbox delay which they experienced in acquisition (nonshifted groups) and half extinguished under a different condition (shifted groups), the following results obtained: (1) resistance to extinct…
Sin obras prominentes en esta página.
Resistance to Extinction as a Function of the Interaction between Training and Extinction Delays
Four delay conditions (0, 5, 10, and 20 sec.) were used in the acquisition of a runway response. Performance was a decreasing function of the duration of the delay interval. In extinction, with half of the Ss from each group extinguished under the same goalbox delay which they experienced in acquisition (nonshifted groups) and half extinguished under a different condition (shifted groups), the following results obtained: (1) resistance to extinct…
Effects of Delay of Reinforcement and Cues upon Acquisition and Extinction Performance
The effects of pairing cues with the termination of a delay of reinforcement interval were studied in a discrete-trial barpress situation. In acquisition, one group of rats received immediate reinforcement while a second group received a 10-sec. delay. Light cues were paired with the presentation of reinforcement for both groups. In extinction each group was split and half the Ss received the cues and half the Ss did not. Resistance to extinction…
Overtraining Extinction Effect Using a Free-Operant Procedure
The effects of five levels of training (210, 490, 1470, 2450, 3430 reinforced responses) on extinction performance were investigated. A free-operant bar-press paradigm was employed. A continuous reinforcement schedule was used with .12 ml. of 64% sucrose. Number of bar-presses and duration of time to reach a 1-min. non-response criterion showed that resistance to extinction was an increasing function of the number of reinforcements during trainin…
Another Failure to Obtain Negative Incentive Contrast following Reductions in Sucrose Reward
The effects of reductions in volume only, concentration only, and volume plus concentration of sucrose rewards were studied in a discrete-trial (retractable bar) situation. There was no evidence of abrupt behavioral decrements or negative contrast effects associated with any type of reward reduction. The present results are in opposition to those obtained following variations in solid food rewards. These findings suggest that the effects of sucro…
Effects of Different Volumes of Reward in a Free-Operant Procedure
Three different volumes (.01, .4 and .7 ml.) of a 32% sucrose concentration were employed in a free-operant bar-press study. In acquisition performance was a decreasing function of volume while in extinction greater persistence of performance was obtained for the .4 and .7 groups than for the .01 group. The extinction results were contrasted with those obtained in discrete-trial experiments which had employed a comparable range of volumes and num…
Four studies comparing the rey-osterrieth and taylor complex figures
The ability of the Rey-Osterrieth (R-O) and Taylor complex figures to produce equivalent scores on both constructional and memory tasks was examined in four studies. While the two figures yielded equivalent copy scores, the Taylor figure produced significantly higher scores on memory tests. This latter relationship was observed with three different retention conditions (immediate, 20-min, and 1-month recall), two types of learning paradigms (inci…
The Mini‐Mental State Examination
OBJECTIVE: The purpose of this paper is to provide a comprehensive review of information accumulated over the past 26 years regarding the psychometric properties and utility of the Mini-Mental State Examination (MMSE). PARTICIPANTS: The reviewed studies assessed a wide variety of subjects, ranging from cognitively intact community residents to those with severe cognitive impairment associated with various types of dementing illnesses. MAIN OUTCOM…
Trail Making Test A and B
Normative data for the Trail Making Test (TMT) A and B are presented for 911 community-dwelling individuals aged 18-89 years. Performance on the TMT decreased with increasing age and lower levels of education. Based on these results, the norms were stratified for both age (11 groups) and education (2 levels). The current norms represent a more comprehensive set of norms than previously available and will increase the ability of neuropsychologists…
Medicine (7 obras) · Psychology (7 obras) · Physics (5 obras) · Audiology (4 obras) · Extinction (optical mineralogy (4 obras) · Social Psychology (4 obras) · Social Psychology (4 obras) · Behavioral and Psychological Studies (3 obras) · Cognition (3 obras) · Developmental psychology (3 obras)