Ali I. Tekcan

Changes in quality of life and self-perspective related to surgery in patients with temporal lobe epilepsy

PURPOSE To evaluate changes in intractable epilepsy patients in terms of quality of life, depression, anxiety, stigma, and impact of epilepsy before and after surgery. METHODS Twenty patients with intractable temporal lobe epilepsy who were waiting for surgery (pre-SAH group) and 21 patients who had already undergone surgery (post-SAH group) were studied. All patients received SF-36, Beck Depression Inventory, State-Trait Anxiety Inventory, stigma and impact of epilepsy inventories, and a form asking their own perspectives about epilepsy and surgery. RESULTS Post-SAH group scored higher on all subscales of SF-36, with only RE scores being significantly better (t=-1.98, P=.05). Although depression, anxiety, and stigma scores were higher in pre-SAH group, only impact of epilepsy scores were significantly higher in pre-SAH group (t=-2.951, P=.005). Seizure frequency and comorbidity had significant effects on QOL where amount of AEDs and QOL were negatively related (r=-0.318, P<0.05). Both groups stated lack of independence and social activities as the main concern (48.8%) and recovery from epilepsy as the most important expectation from surgery (85.4%). Post-surgical group mentioned the difference in their life after surgery as independence and increase in social activities (47.6%). CONCLUSION QOL of patients after surgery was found to be better than before surgery. Results also revealed that seizure frequency, comorbidity, and anti-epileptic medication affected health related QOL negatively. Impact of epilepsy levels was found to be higher among the pre-SAH patients. Finally, independence seemed to be the most important concern and gain for Turkish epilepsy patients.

Effects of age on flashbulb memories.

The authors investigated the effect of aging on flashbulb (FB) memories. In 1996, elderly Turks recalled how they had heard about 2 remote events--the death of the first president of Turkey (in 1938) and another event involving a change in the national borders of the country (in 1939)--and both elderly and younger adults recalled how they heard about the recent death of the 8th president of Turkey (in 1993). Seventy percent of the elderly had FB memories for the 1938 death; critical variables for the formation of FB memories were personal importance attached to the event and rehearsal. Ninety percent of younger Turks and 72% of elderly Turks had FB memories for the 1993 death; the only variable that differed between the 2 groups was rehearsal.

Name or hum that tune: Feeling of knowing for music

This is the first reported research that explores the feeling of knowing (FOK) for musical stimuli. Subjects attempted to recall melodies and titles of musical pieces, made FOK ratings when recall failed, and then had a recognition test. With instrumental music (Experiment 1), more titles were recalled when melodies were given as cues than vice versa. With songs whose lyrics were not presented (Experiment 2), however, more melodies were recalled than were titles. For nonrecalled items, although the overall levels of recognition did not differ, FOK ratings were higher for titles than for melodies in Experiment 1, and the opposite pattern occurred in Experiment 2. In both experiments, the FOK ratings predicted melody recognition more accurately than they did title recognition.

The Role of Familiarity Among Group Members in Collaborative Inhibition and Social Contagion

The present study looks at the effects of familiarity among group members on collaborative inhibition, false memory creation, and social contagion. Friend, nonfriend (adhoc) and nominal three-person groups studied categorized wordlists, followed by free recall and recognition tests, including remember/know judgments. Friend and nonfriend group members were asked to engage in collaborative recall, while nominal group members were tested individually. Results showed that collaborative inhibition was evident among friend and nonfriend groups. However, these detrimental effects of collaboration disappeared during recognition judgments. In terms of susceptibility to false memory creation, it was found that friend groups showed higher levels of social contagion and made more know than remember judgments than nonfriend and nominal group members. These findings suggest that friend group members took the veracity of others’ memories for granted and were less able to make clear distinctions between what they did an...

FLASHBULB MEMORIES FOR A NEGATIVE AND A POSITIVE EVENT: NEWS OF DESERT STORM AND ACCEPTANCE TO COLLEGE

37 college students answered questions regarding the circumstances in which they first heard about two events that took place approximately two years prior: the beginning of Operation Desert Storm and the news of their acceptance to college. The number of details recalled about their own circumstances for both events was very high and not different for the two events. However, they reported having stronger emotional reactions (as measured by a 5-point rating scale) for the news of acceptance to college. Only for the news of Desert Storm was rated intensity of emotional reaction related to the number of details recalled. Sex differences were found in the intensity of emotional reactions and frequency of rehearsal but not in recall.

Are you sure you forgot? Feeling of knowing in directed forgetting.

One significant issue in metamemory is how variables increasing memorability affect metamemory. Previous research has produced inconsistent results. The effect of directed forgetting on the magnitude and accuracy of feeling-of-knowing (FOK) judgments was investigated. Participants were presented with word pairs, some to be remembered and some to be forgotten, and then were asked to recall all target words regardless of initial instructions. For unrecalled items, they were asked to give FOK judgments about performance in a future memory task: a cued stem-completion task (Experiment 1) or a recognition test (Experiment 2). This encoding manipulation increased both the memory performance and the magnitude of FOK judgments. However, no such effect on the accuracy of FOK judgments was observed.

Life scripts across age groups: A comparison of adolescents, young adults, and older adults

The main purpose of the present study was to investigate cultural life scripts across three age groups. Adolescents, young adults, and older adults were asked to list the seven most important events that a typical newborn would experience in a lifetime. They also provided estimates of emotional valence and age for the life script events they listed. Results showed that there was substantial overlap in the script events listed by three groups. The adolescent and young adult scripts were more similar to each other than they were to the older adult script. Older adult scripts also differed from that of the other two groups in that they (a) were more typical, and (b) showed a stronger bump for positive events corresponding to young adulthood. The bump for positive script events emerged for events not experienced by the participants as well.

The relationship between executive functions, episodic feeling-of-knowing and confidence judgements

Metamemory processes and executive control may be related, given that both are frontally mediated. However, previous behavioural research has been limited in identifying common processes driving this somewhat weak relationship partly because they mostly relied upon global executive measures and composite scores of executive function (EF). The present study investigated the relationship between specific EFs (task shifting, interference resolution), working memory capacity and feeling-of-knowing (FOK) and confidence judgements (CONF) in an episodic memory task. We found that, of the EFs, only task-switching performance was correlated with FOK accuracy and proposed a shared mechanism that may be at play in both task-switching and FOK judgements. We also demonstrated that interference resolution and episodic memory measures were related, suggesting strategic influences on memory retrieval. Finally, we found a strong consistency in the strength and accuracy of FOK and CONF judgements, possibly due to retrieval-based mechanisms in both types of judgements.

Effects of self-referencing on feeling-of-knowing accuracy and recollective experience

The current research investigated the impact of self-referencing (SR) on feeling-of-knowing (FOK) judgements to improve our understanding of the mechanisms underlying these metamemory judgements and specifically test the relationship between recollective experiences and FOK accuracy within the accessibility framework FOK judgements are thought to be by-products of the retrieval process and are therefore closely related to memory performance. Because relating information to ones self is one of the factors enhancing memory performance, we investigated the effect of self-related encoding on FOK accuracy and recollective experience. We compared performance on this condition to a separate deep processing condition in which participants reported the frequency of occurrence of pairs of words. Participants encoded pairs of words incidentally, and following a delay interval, they attempted at retrieving each target prompted by its cue. Then, they were re-presented with all cues and asked to provide FOK ratings regarding their likelihood of recognising the targets amongst distractors. Finally, they were given a surprise recognition task in which following each response they identified whether the response was remembered, known or just guessed. Our results showed that only SR at encoding resulted in better memory, higher FOK accuracy and increased recollective experience.

Remembering the first seizure and the diagnosis of epilepsy: How much impact do they have in our lives?

The aim of the study described here was to investigate what people with epilepsy (PWE) remember about their first seizures and the diagnoses they received, as well as what healthy control participants (HCP) remember about the first seizure they witnessed. Forty PWE were asked to recall in detail their first seizures and their diagnoses, and 40 HCP were asked to recall the first seizure they witnessed. All participants also rated aspects of their subjective reactions to these experiences. Although the first seizure was more surprising and received more covert rehearsal than the diagnosis, PWE recalled equal numbers of details about the two events. Free recall protocols showed that the memory narratives were longer for the first seizure than for the diagnosis. HCP also showed almost perfect recall for the personal circumstances of the first seizure they witnessed. These findings, combined with strong emotional reactions to these experiences, suggest that they lead to detailed and lasting memories.