No. of correctly identified targets (target=food image)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on the food picture; in the Rapid Serial Visualisation Task.

Integer

No. of correctly identified targets (food distractor 1 image before target)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on a neutral image; with a distractor food picture shown 1 image before the target (i.e.; the distractor immediately preceded the target); in the Rapid Serial Visualisation Task.

Integer

No. of correctly identified targets (food distractor 2 images before target)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on a neutral image; with a distractor food picture shown 2 images before the target (i.e.; there was 1 neutral image between the distractor and the target); in the Rapid Serial Visualisation Task.

Integer

No. of correctly identified targets (food distractor 3 images before target)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on a neutral image; with a distractor food picture shown 3 images before the target (i.e.; there were 2 neutral image between the distractor and the target); in the Rapid Serial Visualisation Task.

Integer

No. of correctly identified targets (food distractor 4 images before target)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on a neutral image; with a distractor food picture shown 4 images before the target (i.e.; there were 3 neutral image between the distractor and the target); in the Rapid Serial Visualisation Task.

Integer

No. of errors in go trials (food)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of errors across all Go Trials for food stimuli in the Food Go/No-Go with Affective Shifting task.

Integer

No. of inhibition errors (food)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of inhibition errors across all food stimuli. Inhibition errors = responses that should have been inhibited as a distractor was presented. Number of times the participant is instructed not to respond to blue-outlined or green-outlined images; but responds when these are food images.

Integer

No. of correctly identified targets (neutral image 1 image before target)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on a neutral image; with a neutral distractor picture shown 1 images before the target (i.e.; there were 0 neutral images between the distractor and the target); in the Rapid Serial Visualisation Task. All images were neutral.

Integer

No. of correctly identified targets (neutral image 2 images before target)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on a neutral image; with a neutral distractor picture shown 2 images before the target (i.e.; there was 1 neutral image between the distractor and the target); in the Rapid Serial Visualisation Task. All images were neutral.

Integer

No. of correctly identified targets (neutral image 3 image before target)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets in the trials where the target (a letter p or q) was on a neutral image; with a neutral distractor picture shown 3 images before the target (i.e.; there were 2 neutral images between the distractor and the target); in the Rapid Serial Visualisation Task. All images were neutral.

Integer

No. of errors in go trials (neutral)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of errors across all Go Trials for neutral stimuli in the Food Go/No-Go with Affective Shifting task.

Integer

No. of inhibition errors (neutral)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of inhibition errors across all neutral stimuli. Inhibition errors = responses that should have been inhibited as a distractor was presented. Number of times the participant is instructed not to respond to blue-outlined or green-outlined images; but responds when these are neutral images.

Integer

No. correctly recalled words delay

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of words the participant correctly recalls from the list of words presented during the Delayed Recall Task; after a period of delay following presentation of the words (=delayed recall). Allows for different spellings (e.g. color and colour) as well as obvious typos (e.g. curtaibn considered a typo for curtain and therefore counted; but e.g. hose not counted as a typo for house).

Integer

No. correctly recalled words

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of words the participant correctly recalls from the list of words presented during the Delayed Recall Task; immediately after presentation of the words (=immediate recall). Allows for different spellings (e.g. color and colour) as well as obvious typos (e.g. curtaibn considered a typo for curtain and therefore counted; but e.g. hose not counted as a typo for house).

Integer

(100/120)*total_food_correct

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Proportion of correctly identified targets across all trials with food pictures in the Rapid Serial Visualisation Task. proportion_food_correct=(100/120)*total_food_correct.

Real

(100/120)*total_neu_correct

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Proportion of correctly identified targets across all trials with only neutral pictures in the Rapid Serial Visualisation Task. proportion_neu_correct=(100/120)*total_neu_correct.

Real

Reaction time go trials (food)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Median reaction time across all Go Trials for food stimuli in the Food Go/No-Go with Affective Shifting task.

milliseconds (ms)

Real

Reaction time go trials (neutral)

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Median reaction time across all Go Trials for neutral stimuli in the Food Go/No-Go with Affective Shifting task.

milliseconds (ms)

Real

No. of correct targets in food

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets across all food pictures in the Rapid Serial Visualisation Task.

Integer

No. of correct targets in neutral

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. Number of correctly identified targets across all trials with only neutral pictures in the Rapid Serial Visualisation Task.

Integer

Total points in Prob. Learning Task

This variable was derived from data collected as part of the Cognitive and Behavioural Measurement Sub Study. 482 participants from the Fenland Cohort took part on this sub study. The accumulated points across all test blocks in the Probabilistic Reversal Learning Task. Variable generated by Inquisit as part of the plt2_summary file for the Probabilistic Reversal Learning Task task.

Integer